WO2024142425A1 - コロニー計数装置、制御方法およびプログラム - Google Patents
コロニー計数装置、制御方法およびプログラム Download PDFInfo
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- WO2024142425A1 WO2024142425A1 PCT/JP2023/017662 JP2023017662W WO2024142425A1 WO 2024142425 A1 WO2024142425 A1 WO 2024142425A1 JP 2023017662 W JP2023017662 W JP 2023017662W WO 2024142425 A1 WO2024142425 A1 WO 2024142425A1
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- Prior art keywords
- colony detection
- colony
- image
- unit
- inspection
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Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0012—Biomedical image inspection
- G06T7/0014—Biomedical image inspection using an image reference approach
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M1/00—Apparatus for enzymology or microbiology
- C12M1/34—Measuring or testing with condition measuring or sensing means, e.g. colony counters
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/02—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
- C12Q1/04—Determining presence or kind of microorganism; Use of selective media for testing antibiotics or bacteriocides; Compositions containing a chemical indicator therefor
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/24—Indexing scheme for image data processing or generation, in general involving graphical user interfaces [GUIs]
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30024—Cell structures in vitro; Tissue sections in vitro
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30204—Marker
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30242—Counting objects in image
Definitions
- FIG. 1 shows a colony counting device.
- FIG. 2 is a diagram illustrating the structure of a head device.
- FIG. 2 is a diagram illustrating the electrical configuration of a head device.
- FIG. 2 is a diagram illustrating the electrical configuration of a control device.
- FIG. 2 is a diagram for explaining a user interface (UI).
- FIG. 13 is a diagram illustrating a UI for creating a count table from a sample database.
- FIG. 13 is a diagram for explaining a UI for assisting in input of a sample name.
- FIG. 13 is a diagram illustrating a UI for creating a new count table.
- FIG. 13 is a diagram illustrating a UI for reusing a past count table.
- FIG. 13 is a diagram for explaining a UI showing automatic identification of a target cell.
- 13A and 13B are diagrams illustrating a UI for switching the unit of the count result.
- 11A and 11B are diagrams illustrating a UI for switching information displayed in a cell.
- FIG. 13 is a diagram illustrating a UI for resetting counting conditions.
- 5A and 5B are diagrams for explaining the transition of function assignment to buttons.
- FIG. 13 is a diagram for explaining a UI for changing inspection conditions and the like.
- 13 is a diagram illustrating a UI for calling up a count table created in the past.
- FIG. FIG. 4 is a diagram for explaining a user authentication card.
- FIG. 13 is a diagram illustrating a UI for registering information in a cell of a free column.
- FIG. 13 is a diagram illustrating an identification image given to a petri dish.
- FIG. FIG. 13 is a plan view illustrating a coaxial lighting device having a light distribution angle restricting plate.
- FIG. 2 is a cross-sectional perspective view illustrating the structure of a coaxial lighting device.
- FIG. 4 is a diagram for explaining a light guide. The light distribution angle for each light emitting element will be described.
- 1A and 1B are diagrams showing how a desired light distribution angle can be achieved by a lens.
- 13 is a schematic cross-sectional view of a head device having a coaxial illumination device employing another structure.
- FIG. 1 is a diagram illustrating low diffusivity.
- FIG. 4 is a diagram illustrating the structure of a diffusion plate.
- FIG. 4 is a diagram for explaining a user interface.
- 11 is a flowchart showing a method for adjusting parameters.
- 11 is a flowchart showing a method for adjusting parameters.
- FIG. 4 is a diagram for explaining a user interface.
- FIG. 4 is a diagram for explaining a user interface.
- FIG. 4 is a diagram for explaining a user interface.
- FIG. 1 shows a colony counting device 1.
- the colony counting device 1 includes a head device 1a and a control device (personal computer (PC)) 1b, which will be described later.
- the head device 1a and PC 1b may be connected by wire, for example, a universal serial bus (USB) cable, or may be connected wirelessly.
- USB universal serial bus
- the lower unit 4 has a metallic front pillar 4b and rear pillar 4d that support the stage 5.
- a part of the front pillar 4b has a cross-sectional shape resembling an upside-down Greek letter ⁇ .
- the front pillar 4b has a recess 4c into which the user can insert his or her finger and which functions as a grip. Because the recess 4c is provided on the front pillar 4b, the head device 1a is less likely to become distorted even if the user inserts his or her hand into the recess 4c to lift the head device 1a. This allows the user to carry the head device 1a stably.
- the dimming control unit 13z electrically controls the degree of diffusion of the diffusion plate 13c according to commands from the MCU 20.
- the communication circuit 34 of the PC 1b may perform wireless communication with a terminal device 1c such as a smartphone or a tablet terminal.
- the terminal device 1c may display a count table 55 or a test list created from the count table 55.
- the test list includes the petri dish number, sample name, bacterial species, culture medium, dilution ratio, culture time, etc., and is referred to when the user prepares test specimens in the petri dish 15.
- the user pours (mixes) a sample into the medium of each petri dish.
- the user writes the sample name in the comment field of the test list.
- the user pours the petri dish into the incubator.
- the user removes the petri dish from the incubator and counts the number of colonies. For example, while looking through the colonies from the bottom of the petri dish, the user marks the colonies with an oil-based pen to indicate that they have been counted.
- the number of colonies is written into the inspection list.
- the user may also count the number of colonies for each type of bacteria while visually checking the species. In this case, the user writes the number of colonies for each type of bacteria for each petri dish into the inspection list.
- the user starts up the PC and reads the numbers and characters written in the inspection list and enters them into spreadsheet software. The number of colonies is tallied using the macro function of the spreadsheet software, etc.
- Figure 5 shows the UI 50 of the count application program displayed on the display device 37 of PC 1b.
- the count application program is stored in the storage device 35 and executed by MCU 30.
- the UI 50 has buttons, links, tabs, etc. for switching between multiple functions possessed by the count application program.
- the UI 50 has a table creation area 51 and a DB display area 61.
- DB is an abbreviation for database.
- the table creation area 51 displays at least a count table 55.
- the title display section 52 accepts input of a title (name) given to the count table 55 from the keyboard 32 and displays it.
- the button 53 is a button for switching between performing/not performing counting for each cell.
- the button 54 is a button for instructing to add a column to the count table 55.
- kimchi has two test items.
- the first test item for kimchi is that a 100-fold dilution ratio of culture medium is used for general live bacteria, and an incubation time of 48 hours is applied. This is the same as the first test item for sandwiches. Therefore, the MCU 30 discards the first test item included in the kimchi template and does not add it as a new column.
- the second test item for kimchi is that a 100-fold dilution ratio of culture medium is used for E. coli, and an incubation time of 24 hours is applied. The MCU 30 adds this as a new column to the count table 55.
- the count can also be performed or not performed by operating the count inversion button 53.
- the MCU 30 may be able to switch between displaying the text or image indicating "not tested” and leaving the field blank for inputting the count result.
- a search box 65 and a tag search narrowing button 66 may be added.
- the MCU 30 searches the storage device 3 for the templates based on the characters entered in the search box 65. 5 to extract templates and display the search results in the DB display area 61.
- a tag search refinement button 66 is pressed, the MCU 30 may display only sample products filtered by the specified classification tag. For example, the same classification tag may be assigned to multiple sample products. In this case, multiple sample products to which the selected classification tag is assigned are added to the count table 55.
- Figure 7 shows another procedure for adding a new row.
- the user selects the sample name display cell in the new row with the pointer 57, and inputs the sample name from the first character on the keyboard 32.
- the MCU 30 searches the sample DB 40 with the input one or more characters, and displays the sample names as input candidates in the candidate display section 58.
- the MCU 30 searches for templates that include "mix” as a sample name, finds “mixed juice”, and displays "mixed juice” in the candidate display section 58.
- the MCU 30 reads the test conditions for mixed juice from the storage device 35, and adds a column according to the read test conditions. This associates the search conditions with the mixed juice cell.
- Figure 8 shows the UI 50 when creating a new count table.
- the MCU 30 can launch a spreadsheet software in parallel with the application program 39.
- FIG. 12 is a diagram for explaining how to create a count table 55 including averaging.
- averaging since averaging has not yet been applied, one row is provided for each sample name.
- the MCU 30 displays the UI 50 shown in FIG. 11.
- the MCU 30 divides the input row of the count value associated with each sample name into three rows and adds a column indicating the number of repetitions.
- the first row has a cell into which the count value obtained in the first test is input.
- the second row has a cell into which the count value obtained in the second test is input.
- Figure 13 shows an example of a parent-child relationship between multiple samples.
- the MCU 30 displays "ham” and "lettuce,” which are ingredients that have a parent-child relationship with the sandwich, in the DB display area 61 in a selectable manner.
- the MCU 30 reads the test items for "ham” or “lettuce” from the storage device 35 and adds them to the count table 55.
- Figure 14 shows that the test items for "ham” and "lettuce” are read from the storage device 35 and added to the count table 55.
- the sandwich, ham, and lettuce, which have a parent-child relationship may be registered together. For example, when the button 64 associated with the sandwich is pressed, the sandwich, ham, and lettuce may be registered together in the count table 55.
- the algorithm setting unit 95 accepts settings of image processing to be applied to the inspection image.
- the residue removal is a mode in which residues (e.g., dust, dirt, handwriting) attached to the petri dish 15, etc. are reduced by image processing.
- the rapid mode is a mode that emphasizes rapid confirmation of results and is a mode in which the petri dish 15 cultured for a shorter culture time than before is inspected with high sensitivity.
- the medium type setting unit 96 accepts the selection of the type of medium (e.g., general viable bacteria (white), general viable bacteria (black)), etc.
- the list button 96a is pressed, the MCU 30 may read candidate medium types from the storage device 35, create a list, and display it on the display device 37.
- the storage device 35 may also store multiple diffusion rates associated with candidate medium types.
- the MCU 30 can read and obtain the diffusion rate associated with the selected medium from the storage device 35.
- FIG. 16 shows the UI 100 displayed on the display device 37 of PC 1b while the head device 1a is being controlled from PC 1b to perform counting process.
- the count table area 101 is an area that displays the count table 55 edited through the UI 50.
- the result area 102 is an area that displays the inspection image 103 acquired by the main camera 11 of the head device 1a.
- the inspection image 103 may be a moving image or a still image.
- the MCU 30 acquires a moving image by the main camera 11 and displays it in the result area 102.
- the MCU 30 acquires a still image by the main camera 11 and displays it in the result area 102.
- Check box 106 is a control object for selecting whether or not to display the count result in count value area 104.
- the first software button 105a is a button that has the same function as the first hardware button 8a.
- the second software button 105b is a button that has the same function as the second hardware button 8b.
- the first software button 105a is assigned the instruction to take a picture (shoot button).
- the second software button 105b is assigned the instruction to register (register button).
- the second software button 105b is shown with a dashed line, which means that it cannot be operated.
- Figure 18 shows the UI 100 that the MCU 30 displays on the display device 37 when the first software button 105a, which is a capture button, or the first hardware button 8a is pressed.
- An image 103 (still image) of the petri dish 15 is displayed in the result area 102.
- the MCU 30 assigns the first software button 105a from a capture button to a button that instructs counting (count button).
- the MCU 30 may switch the display between the count value only, the CFU/mL only, and the count value + CFU/mL in that order.
- CFU is an abbreviation for colony forming unit.
- the MCU 30 reassigns the first software button 105a from the count button to the shooting button.
- the MCU 30 changes the second software button 105b and the second hardware button 8b, which are assigned to the registered buttons, from an inoperable state to an operable state.
- the UI 100 shown in FIG. 20 has a menu 109 for changing the display target of the cell.
- "Count” has been selected in the menu 109, so "100" is displayed in the cell.
- Figure 23 shows the UI 100 that the MCU 30 displays on the display device 37 when a cell in which a count value has already been input is double-clicked.
- the setting screen 120 includes control objects for adjusting parameters related to the colony detection algorithm among the inspection conditions associated with the cell selected by double-clicking.
- the slide bar 121 is a control object for setting, for example, a threshold for removing small particles by image processing.
- the slide bar 122 is a control object for adjusting the colony detection sensitivity.
- the image 103 is a moving image, and the active cell is in the "count value entered” state, the first hardware button 8a (first software button 105a) is assigned the Count button, and the second hardware button 8b (second software button 105b) is assigned the Register button (not operable).
- the image 103 is a still image, and the active cell is in the "count value has been entered” state, the first hardware button 8a (first software button 105a) is assigned the “shoot” button, and the second hardware button 8b (second software button 105b) is assigned the "re-register” button (operable).
- the MCU 30 instructs the head device 1a to start the front camera 10.
- the MCU 20 of the head device 1a starts the front camera 10 and attempts to read the identification image 221.
- the identification image 221 may simply be called a symbol.
- the user aligns the position of the inspection list 220 with the front camera 10 so that the front camera 10 reads the identification image 221. If the MCU 20 succeeds in reading the identification image 221, it decodes the identification information from the identification image 221 and transmits it to the PC 1b.
- the MCU 30 reads the count table associated with the identification information received from the head device 1a from the storage device 35.
- the front camera 10 and the main camera 11 may capture and read the petri dish number and identification image 221 printed on a sticker 270 attached to the petri dish 15.
- the identification image 221 may be encoded with identification information of the count table 55, the sample name, unique identification information indicating the cell in which the count result is stored, and the like.
- the MCU 30 can identify the count table 55, the sample name, the petri dish 15, and the inspection conditions.
- the MCU 30 transmits the identified inspection conditions to the head device 1a, and the MCU 20 of the head device 1a can control the main camera 11, the ring illumination devices 12 and 13, and the coaxial illumination device 14 according to the received inspection conditions to acquire images.
- Figure 31 shows the reading screen 250 that is displayed on the display device 37 when the read button 242 is pressed.
- Check box 251 is a checkbox for instructing the MCU 30 to automatically close the reading screen 250 when the MCU 20 successfully recognizes the code.
- the image area 252 displays a moving image or a still image captured by the front camera 10.
- the reading result area 253 is an area that displays the text decoded from the one-dimensional symbol or two-dimensional symbol.
- the MCU 20 of head device 1a activates the front camera 10, reads the one-dimensional code, decodes the text from the one-dimensional code, and sends the decoded text to PC 1b.
- the user checks the text displayed in the reading result area 253 and presses the OK button 254 or the cancel button 255.
- the OK button 254 is pressed, the MCU 30 closes the reading screen 250 and returns to the editing screen 240, and inserts the text received from head device 1a into the cell.
- the cancel button 255 is pressed, the text received from head device 1a is discarded, the reading screen 250 is closed, and the editing screen 240 is returned to.
- Figure 32 shows the editing screen 240 with text inserted.
- the OK button 254 is pressed, the MCU 30 closes the editing screen 240 and displays the UI 50 shown in Figure 29 on the display device 37.
- MCU 30 sends a counting instruction to head device 1a. Note that when the counting process is performed by PC 1b, MCU 30 performs the counting process instead of MCU 20.
- MCU 20 determines whether or not a count end instruction has been received. If a count end instruction has been received, MCU 20 ends the count. If a count end instruction has not been received, MCU 20 returns from S31 to S23 and receives the inspection conditions for the next cell.
- the MCU 30 accepts a selection of a row element to be registered in the sample DB 40 from among the multiple row elements included in the count table. For example, the MCU 30 may accept a click with the pointer 57 on any of the row elements included in the sample table.
- the MCU 30 accepts input of inspection conditions via the keyboard 32 or pointing device 33.
- the MCU 20 counts the colonies contained in the inspection image according to the inspection conditions (threshold parameters).
- Figure 43 is a plan view of the coaxial lighting device 14.
- a roughly rectangular parallelepiped light guide 4302 is provided above each of the multiple light-emitting elements 14a that make up the coaxial lighting device 14.
- the light guide 4302 guides the light incident from the bottom side to the top side.
- a light distribution restricting plate 4301 is provided above the light guide 4302.
- the light distribution restricting plate 4301 is formed of a light-shielding material such as a metal such as aluminum or a resin.
- the light distribution restricting plate 4301 is provided with multiple roughly circular apertures 4303.
- the light guides 4302 and the apertures 4303 are provided in a one-to-one relationship.
- the light emitted from the light guide 4302 is shaped by the aperture 5404.
- Figures 44 and 45 are cross-sectional perspective views of the light distribution restriction plate 4301, the light guide 4302, the light guide substrate 4401, the light emitting element 14a, and the substrate 4400.
- the light emitting elements 14a are mounted on the substrate 4400.
- the screws 4402 are fastened to the light distribution restriction plate 4301 via the light guide substrate 4401, thereby fixing the light guide substrate 4401 to the light distribution restriction plate 4301.
- the screws 4403 are fastened to the light distribution restriction plate 4301 via the substrate 4400 and the light guide substrate 4401, thereby fixing the light guide substrate 4401 and the light distribution restriction plate 4301 to the substrate 4400.
- the light guides 4302 may be integrated with the light guide substrate 4401.
- the light guides 4302 and the light guide substrate 4401 are molded from a translucent resin (e.g., acrylic) or glass.
- the light guide 4302 and the aperture 4304 may be replaced with a lens 4701.
- Li is the distance between the center of the lens 4701 and the emission surface of the light-emitting element 14a.
- the counting unit may count the number of colonies contained in the inspection image based on shape characteristics such as circularity, aspect ratio, area, and perimeter. This makes it possible to reduce erroneous counts due to scratches and dust, and to more accurately count the number of colonies.
- FIG. 50 is a diagram showing a configuration example of the diffusion plate 13c.
- a diffusion film 4901 is provided on the first surface side of a substrate 4900, which is a glass plate or an acrylic plate having translucency.
- a diffusion film 4902 may be provided on the second surface side of the substrate 4900.
- the diffusion films 4901 and 4902 may be liquid crystal films.
- the dimming control unit 13z turns on/off the voltage applied to the diffusion films 4901 and 4902 to change the orientation of the liquid crystal in the diffusion films 4901 and 4902, and the diffusion degree of the diffusion films 4901 and 4902 is changed. For example, when the diffusion films 4901 and 4902 are both off, a second diffusion degree is realized.
- a first diffusion degree is realized.
- a third diffusion degree is realized (second diffusion degree ⁇ third diffusion degree ⁇ first diffusion degree).
- the fourth diffusion degree is realized (second diffusion degree ⁇ fourth diffusion degree ⁇ first diffusion degree).
- the third diffusion degree may be larger or smaller than the fourth diffusion degree.
- the third diffusion degree may be equal to the fourth diffusion degree. This makes it possible to switch the diffusion degree of the diffusion plate 13c between three or four levels.
- Figures 51 and 52 show a method of electrically and mechanically switching the degree of diffusion.
- the dimming control unit 13z can insert the diffuser plate 13c into the optical path of the inspection light ( Figure 51) or remove the diffuser plate 13c from the optical path ( Figure 52) by controlling the motor 13e. If there is sufficient size for the lower unit 4, a method of electrically and mechanically switching the degree of diffusion can also be implemented. In this case, the degree of diffusion of the diffuser plate 13c is constant.
- Figure 53 shows inspection image 5301 of an inspection individual irradiated with inspection light diffused with high diffusion by diffuser plate 13c, and inspection image 5302 of an inspection individual irradiated with inspection light diffused with low diffusion by diffuser plate 13c.
- Enlarged image 5311 is an enlarged view of a certain colony included in inspection image 5301.
- Enlarged image 5312 is an enlarged view of the same colony included in inspection image 5302.
- the diffusion degree is linked to the cells of the count table and the test image. This allows the user to easily know the diffusion degree linked to the cell or test image.
- Figure 54 shows an illumination setting UI 5400 that can be called up from the illumination button of the dialog 90 shown in Figure 15 or the inspection condition confirmation screen 110 shown in Figure 17.
- the illumination selection section 5401 is a UI for selecting the type of illumination. In this example, one type can be selected from epi-illumination ring (ring illumination device 12), transmitted coaxial (coaxial illumination device 14), or transmitted ring (ring illumination device 13).
- the selection frame 5402 is a display object that highlights the currently selected type of illumination.
- the check box 5403 is a control object for selecting the degree of diffusion. When the check box 5403 is checked, high diffusion is selected. When the check box 5403 is unchecked, low diffusion is selected.
- each cell is also associated with an inspection image.
- a cell of general viable bacteria and a cell of E. coli may be associated with different diffusion degrees, or the same diffusion degree may be associated with them.
- each cell in the count table is associated with an inspection condition, an inspection image, and a count result. Since diffusion is one of the inspection conditions, diffusion is also associated with the inspection image and the count result.
- the diffusion level is selected by check box 5403, but the diffusion level may also be selected through other control objects.
- a radio button may be used to select one diffusion level from two or more selectable diffusion levels.
- a check box or radio button may be used to turn on/off a function for reducing scratches and noise (noise reduction function).
- the MCU 30 selects high diffusion level when the noise reduction function is turned on, and selects low diffusion level when the noise reduction function is turned off.
- other options on the UI are associated with the diffusion level, and the diffusion level may also be selected indirectly by the user selecting one option from multiple options.
- the type of culture medium and the diffusion degree may be associated in advance.
- the MCU 30 may accept the user's selection of the type of culture medium from the culture medium type setting unit 96 shown in FIG. 15, obtain the diffusion degree associated with the selected culture medium from the storage device 35, and set the diffusion degree in the dimming control unit 13z.
- Figure 55 shows that a composite inspection image 5503 is obtained by combining an inspection image 5501 generated with high diffusion and an inspection image 5502 generated with low diffusion.
- a transmissive ring illumination device 13 is used as the illumination device. Because a ring illumination device 13 is used, the inspection light passes only through the diffusion plate 13c without passing through the diffusion plate 13d.
- the MCU 30 When culturing the petri dish 15, condensation may occur in the petri dish 15.
- the synthesis method may be any method that reduces the influence of the condensation and the characters.
- the MCU 30 may generate the inspection image 5501 from the difference between the inspection image 5502 and the inspection image 5501. In this way, by calculating the difference between inspection image 5501 and inspection image 5502, a composite inspection image 5503 is generated in which the effects of disturbances observed as bright areas in both images are suppressed. Note that composite inspection image 5503 may also be called a disturbance-suppressed image.
- Figure 56 is a diagram explaining how to measure bacterial resistance to drugs. It is known that bacteria can acquire resistance to drugs. Therefore, it is very useful to find out which of several drugs is effective against a certain bacterium.
- a petri dish 15 contains culture medium 5601 on which bacteria are evenly spread. Six types of drugs 5602 are poured or dripped onto it.
- the diffusion degree effective for measuring the diameter Dc of the inhibition circle may differ depending on the type of culture medium. Therefore, when generating an inspection image for measuring the diameter Dc of the inhibition circle, the MCU 30 accepts the input of the type of culture medium by the user and selects a diffusion degree corresponding to the type of culture medium from among multiple diffusion degrees.
- the storage device 35 may previously store the type of culture medium and the diffusion degree in association with each other.
- the MCU 30 may display a UI for one-to-one association between the type of culture medium and the diffusion degree on the display device 37, and accept a setting for linking the diffusion degree to the type of culture medium through the UI.
- the MCU 30 identifies the diffusion degree corresponding to the type of culture medium input when measuring the inhibition circle by referring to the storage device 35, and sets the identified diffusion degree in the dimming control unit 13z.
- the dimming control unit 13z applies a voltage to the diffusion plate 13c so that the diffusion degree is set. As a result, a diffusion degree suitable for the culture medium is adopted, and the MCU 30 can accurately measure the diameter Dc of the inhibition circle 5603 from the inspection image.
- the image of the inspection object is subjected to shading correction, brightness conversion, noise reduction processing (e.g., particle reduction, lint reduction), watershed (a type of image division algorithm), appropriate combination of area sets, etc., and is finally converted into a binary image based on the binary sensitivity (binary threshold). Therefore, the binary conversion process is a very complicated calculation process and requires a considerable amount of calculation time.
- the MCU 30 then counts the number of colonies from the binary image. Users had to compare the original image with the binary image and check the colony count results to determine which inspection parameters should be fine-tuned and how. By repeating this series of adjustments for each inspection parameter, the final inspection parameters were determined. In particular, because binary image processing takes time, users had to wait a long time between adjusting the inspection parameters and obtaining the counting results that were the result of those adjustments.
- This embodiment therefore simplifies the process of adjusting the inspection parameters. In addition, some parts of this embodiment will likely shorten the adjustment process compared to conventional methods.
- the candidates for the inspection parameters may be gradually narrowed down from primary candidates, secondary candidates, ... to final candidates.
- the multiple inspection parameters that are the nth candidate are composed of one inspection parameter selected by the user from the multiple inspection parameters included in the n-1th candidate, and several inspection parameters located before and after the one inspection parameter. In this way, the inspection parameters closest to the user's sense may be gradually selected.
- three candidate images 5802 are displayed, each of which has been obtained by applying different inspection parameters.
- the user selects one candidate image 5802 by manipulating the pointer 57.
- the selection frame 5806 is a box or frame for highlighting the candidate image 5802 selected by the user.
- the MCU 30 When the pointer 57 detects that the back button 5804 has been pressed, the MCU 30 returns from the count navigation UI 5800 to the UI 100. When the pointer 57 detects that the next button 5805 has been pressed, the MCU 30 transitions to the next UI (e.g., the UI 5800 shown in FIG. 61).
- the next UI e.g., the UI 5800 shown in FIG. 61.
- candidate images 5802 are displayed in FIG. 58, but this is just one example.
- the number of candidate images 5802 displayed in the candidate display area 5801 may be two or more.
- the nth order candidates may be determined to include three or more candidates (e.g., 0.25, 0.3, 0.35) centered around the midpoint between the two candidates (e.g., 0.3).
- Figure 60 shows another example of the count navigation UI 5800.
- the original image 6001 is a raw image (color image or grayscale image) acquired from the specimen to be inspected.
- the original image 6001 is an image close to the impression the user gets when viewing the petri dish 15 with the naked eye.
- the candidate image 5802 is an image generated by superimposing a binary image generated by applying inspection parameters to the original image 6001 and performing image processing on the original image 6001. In this case, the user will be able to determine whether or not the colony present in the original image 6001 has been correctly detected by checking the binary image superimposed on the original image 6001.
- FIG. 62 does not have a count navigation button 105d
- a count navigation button 105d may be provided.
- the user can readjust the multiple types of inspection parameters by pressing the count navigation button 105d.
- the inspection parameters determined in the previous adjustment may be read from the storage device 35 and adopted as the median value of multiple inspection parameters that are primary candidates for readjustment.
- the MCU 30 (image processing unit, calculation unit, counting unit) performs a counting calculation for each of the L inspection parameters of the second type. This results in L counting results that are stored in the storage device 35.
- the second type of inspection parameters are, for example, the on/off of the small particle reduction function, the on/off of the lint reduction function, the size of the shape division, etc.
- the UI 5800 shown in FIG. 58 etc. displays multiple binary images (candidate images 5802) each generated by applying multiple candidates for the same type of inspection parameter (candidate parameters). However, the UI 5800 shown in FIG. 66 displays only one binary image (candidate image 5802) out of the multiple binary images generated. This increases the display area per candidate image 5802, making it easier for the user to visually check the details of the candidate image 5802.
- the UI 5800 shown in FIG. 66 may have a slide bar 6601 as a control object for instructing switching of the candidate image 5802 displayed in the candidate display area 5801.
- the user switches the candidate image 5802 displayed in the candidate display area 5801 by clicking or dragging the slide bar 6601 with the pointer 57.
- the first candidate image generated by applying the first inspection parameter is switched to the second candidate image generated by applying the second inspection parameter.
- Figure 67 shows that the candidate image 5802 has been switched by the user.
- the slide bar 6601 has been dragged to the right, and a different (second) candidate image 5802 is displayed in the candidate display area 5801.
- the inspection parameters and count numbers displayed in the information display area 5803 are also switched according to the candidate image 5802.
- Figure 68 shows that the candidate image 5802 has been switched by the user.
- the slide bar 6601 is dragged further to the right, and yet another (third) candidate image 5802 is displayed in the candidate display area 5801.
- the inspection parameters and count numbers displayed in the information display area 5803 are also switched in accordance with the candidate image 5802.
- the candidate image 5802 displayed in the candidate display area 5801 and the inspection parameters displayed in the information display area 5803 at that point in time are confirmed as having been selected by the user.
- multiple candidate images 5802 may be displayed in a contrasting manner.
- candidate images 5802 with discretely changed inspection parameters can be displayed in sequence at the same position in the candidate display area 5801. This makes it easy to grasp which area of the candidate image 5802 has been newly counted as a colony and how the candidate image 5802 has changed by changing the inspection parameters.
- the slide bar 6601 may be operated using cursor keys provided on a keyboard.
- candidate images 5802 with lower count numbers may be displayed, and as the slide bar 6602 moves to the right, candidate images 5802 with higher count numbers may be displayed. In this way, the multiple candidate images 5802 (the display order) may be sorted according to the count numbers.
- the storage device 35 is an example of a storage unit that stores a count table including cells into which the count results of each of a plurality of test specimens are input.
- the MCU 30 and the display control unit 36 are an example of a display control unit that displays the count table stored in the storage unit on the display unit 37.
- the MCU 30 and the pointing device 33 are an example of a cell identification unit that identifies a target cell into which the count result is input from among a plurality of cells included in the count table displayed by the display control unit.
- the MCU 20 or the MCU 30 is an example of a counting instruction unit that generates a counting instruction according to a user's operation.
- the table management unit may associate inspection conditions with the count result cells that store the count results of the number of colonies. By associating inspection conditions with the cells that store the count results, it becomes possible to easily set the inspection conditions when carrying out inspections related to colonies.
- the acquisition unit may have an illumination unit (e.g., ring illumination devices 12 and 13, coaxial illumination device 14) that illuminates the inspection individual, and an imaging unit (e.g., main camera 11) that images the inspection individual illuminated by the illumination unit.
- the inspection conditions may include the illumination conditions of the illumination unit (e.g., type of illumination, brightness). Appropriate illumination conditions vary depending on the type of bacteria, such as E. coli or general viable bacteria, and the type of culture medium (e.g., sheet-type culture medium, liquid-type culture medium, selective culture medium). Therefore, by including the illumination conditions as the inspection conditions, it becomes possible to set illumination conditions suitable for each cell.
- the inspection conditions may include imaging conditions of the imaging unit (e.g., exposure time). Appropriate imaging conditions may vary depending on the color of the culture medium and the color of the colony. By including the imaging conditions in the inspection conditions, it becomes possible to set appropriate imaging conditions for each cell.
- a cell in the count table into which the number of colonies is input may be assigned unique cell identification information.
- the MCU 30 may use the printer 38 to print an identification image 221 encoding the unique cell identification information on a sticker 270 (resin or paper with an adhesive surface). The user attaches the sticker 270 to the side of the petri dish 15. The petri dish number may be used as the unique cell identification information.
- the identification information acquisition unit e.g., MCU 30, front camera 10, or main camera 11
- the cell identification unit e.g., MCU 30
- the cell identification unit may identify the target cell based on the cell identification information acquired by the identification information acquisition unit. This saves the user the trouble of specifying the target cell. Furthermore, the target cell corresponding to the test individual may be accurately identified.
- the MCU 30 may function as a creation unit that creates a count table in response to user operations and stores the count table in the storage unit.
- a stage e.g., a transparent window 6 having a first surface on which an inspection object is placed and a second surface that is the reverse side of the first surface and capable of transmitting light from the second surface to the first surface, an imaging unit (e.g., a main camera 11) that is disposed opposite the first surface of the stage and generates an inspection image of the inspection object placed on the stage, a surface light source (e.g., a coaxial lighting device 14) that irradiates the inspection light toward the second surface so that a beam of the inspection light is transmitted from the second surface of the stage to the first surface, A colony counting device having a dimming unit (e.g., diffusion plates 13c, 13d) that is disposed between a surface light source and the second surface of the stage and adjusts the diffusion degree of the inspection light beam, a control unit (e.g., MCUs 20, 30, dimming control unit 13z) that controls at least the dimming unit, and a dimming unit (e.g., MCUs
- Point C2 The colony counting device described in Point C1, in which the surface light source has a light distribution angle regulating section (e.g., light distribution regulating plate 4301) that regulates the light distribution angle of the inspection light output from the surface light source.
- a light distribution angle regulating section e.g., light distribution regulating plate 43011
- the light distribution angle regulating unit includes a plurality of light guides (e.g., light guide 4302) arranged for each of the plurality of light emitting elements (e.g., light emitting element 14a) that form the surface light source, and a plurality of apertures (e.g., aperture 4303) arranged for each of the plurality of light guides.
- a plurality of light guides e.g., light guide 4302
- the plurality of light emitting elements e.g., light emitting element 14a
- apertures e.g., aperture 4303
- the desired light distribution angle can be achieved and there is less unevenness in the amount of light. Furthermore, compared to a configuration using a single light source and lens optical system, it is possible to configure a smaller optical system while maintaining the same irradiation area.
- Point C4 The colony counting device described in Point C3, in which the multiple light-emitting elements are arranged on any of multiple concentric circles having different radii (e.g., FIG. 43).
- Point C5 A colony counting device as described in Point C4, in which the spacing (e.g., i1) between the multiple light-emitting elements arranged on the concentric circle with a larger radius among the multiple concentric circles is narrower than the spacing (e.g., i2) between the multiple light-emitting elements arranged on the concentric circle with a smaller radius among the multiple concentric circles (e.g., i2>i1 in FIG. 43).
- the spacing e.g., i1 between the multiple light-emitting elements arranged on the concentric circle with a larger radius among the multiple concentric circles is narrower than the spacing (e.g., i2) between the multiple light-emitting elements arranged on the concentric circle with a smaller radius among the multiple concentric circles (e.g., i2>i1 in FIG. 43).
- Point C6 The colony counting device described in Point C1, in which the light distribution angle control unit has a telecentric lens (e.g., telecentric optical system 4802) arranged between the surface light source and the dimming unit.
- a telecentric lens e.g., telecentric optical system 4802
- the light distribution angle control section may be realized by a telecentric lens.
- Point C7 The colony counting device according to Point C1, in which the light control unit is capable of switching the diffusion degree between a first diffusion degree and a second diffusion degree, and the first diffusion degree is greater than the second diffusion degree.
- the MCU 30 may measure the circularity, aspect ratio, area, circumference, etc. of the colony according to the inspection conditions. In this case, a second diffusion degree that emphasizes the outline of the colony would be effective.
- the diffusion degree is one of the inspection conditions 28. As shown in FIG. 4, the inspection condition 28 is linked to the count table 55 and the inspection image and stored in the storage device 35. In other words, the diffusion degree set in the dimming unit when acquiring the inspection image 29 is linked to the inspection image 29 and stored in the storage device 35.
- the control unit is configured to control the dimming unit to control the imaging unit to obtain a first inspection image (e.g., high diffusion inspection images 5301, 5501) as the inspection image to be counted by the counting unit, while controlling the dimming unit to irradiate the inspection individual with inspection light of a first diffusion degree, and to control the imaging unit to obtain a second inspection image (e.g., low diffusion inspection images 5302, 5502) as the inspection image to be counted by the counting unit, and the colony counting device is further configured to control the dimming unit to control the imaging unit to obtain a second inspection image (e.g., low diffusion inspection images 5302, 5502) as the inspection image to be counted by the counting unit,
- a colony counting device comprising: a registration unit that associates the first inspection image with diffusion information regarding the first diffusion degree and registers the second inspection image in the storage unit, and that associates the second inspection image with diffusion information regarding the second diffusion degree and registers the second inspection
- Point C12 The colony counting device according to Point C1, in which the light control unit has a diffusion member (e.g., diffusion plate 13c, liquid crystal film type diffusion films 4901, 4902) whose diffusion degree can be electrically changed, and the control unit changes the diffusion degree of the light control unit by electrically changing the diffusion degree of the diffusion member.
- a diffusion member e.g., diffusion plate 13c, liquid crystal film type diffusion films 4901, 4902
- the degree of diffusion can be changed by changing the electrical parameters, making it easier to implement the dimming and control units.
- the colony counting device further comprises a setting reception unit (e.g., MCU 30, UI 5400, checkbox 5403) that receives the setting of the diffusion degree for each type of culture medium, and a type reception unit (e.g., MCU 30, dialog 90) that receives the input of the type of culture medium of the test individual placed on the stage, and the control unit is configured to identify the diffusion degree corresponding to the type of the culture medium of the test individual received by the type reception unit, and to control the light adjustment unit according to the identified diffusion degree.
- a setting reception unit e.g., MCU 30, UI 5400, checkbox 5403
- a type reception unit e.g., MCU 30, dialog 90
- a colony counting device according to Point C1, further comprising a creation unit (e.g. MCU30) that creates a count table that records identification information that identifies the test individual, diffusion degree information related to the diffusion degree of the dimming unit applied to the test individual, and the number of colonies obtained by the counting unit, the control unit being configured to receive a selection of a cell from the count table and to control the diffusion degree of the dimming unit based on the diffusion degree information corresponding to the received cell, and the counting unit being configured to write the number of colonies into the received cell.
- a creation unit e.g. MCU30
- creates a count table that records identification information that identifies the test individual, diffusion degree information related to the diffusion degree of the dimming unit applied to the test individual, and the number of colonies obtained by the counting unit
- the control unit being configured to receive a selection of a cell from the count table and to control the diffusion degree of the dimming unit based on the diffusion degree information corresponding to the received cell
- the counting unit being configured to
- the colony counting device 1 may be used to measure the inhibition circle 5603.
- the inhibition circle 5603 has been measured using a caliper or the like, but in this embodiment, the inhibition circle 5603 can be easily measured using the colony counting device 1.
- a method for controlling a colony counting device having a stage having a first surface on which an inspection object is placed and a second surface that is the reverse side of the first surface and capable of transmitting light from the second surface to the first surface, an imaging unit disposed opposite the first surface of the stage and generating an inspection image of the inspection object placed on the stage, a surface light source that irradiates the inspection light toward the second surface so that the inspection light beam transmits from the second surface of the stage to the first surface, and a dimming unit disposed between the surface light source and the second surface of the stage and adjusting the diffusion degree of the inspection light beam, the method comprising the steps of: setting the diffusion degree in the dimming unit; turning on the surface light source; generating an inspection image by imaging the inspection object with the imaging unit, the inspection object irradiated with the inspection light beam that is output from the surface light source and has its diffusion degree adjusted by the dimming unit, and that is input from the second surface of the stage and output from the first surface of the stage; and
- a setting reception unit (e.g., MCU30, UI5400, checkbox 5403) that receives the setting of the diffusion degree for each type of culture medium, a stage on which the test individual is placed, a type reception unit (e.g., MCU30, dialog 90) that receives input of the type of culture medium for the test individual placed on the stage, an illumination unit that irradiates the test individual placed on the stage with inspection light, and a dimming unit that is provided in the optical path along which the inspection light irradiated from the illumination unit reaches the test individual and adjusts the diffusion degree of the inspection light irradiated from the illumination unit, and A colony counting device having a control unit (e.g., MCU20, MCU30, dimming control unit 13z) that identifies the diffusion degree corresponding to the type of the received inspection individual and controls the dimming unit according to the identified diffusion degree, an imaging unit that receives the inspection light that is irradiated from the illumination unit, passes through a control unit (e
- a colony counting device having an acquisition unit (e.g., MCU 30, main camera 11) that acquires an image of an individual to be inspected by imaging the individual to be inspected; a display processing unit (e.g., MCU 30, display control circuit 36) that displays on a display unit multiple colony detection results obtained by applying different colony detection parameters to the image of the individual to be inspected acquired by the acquisition unit so that they can be compared; a selection unit (e.g., MCU 30, pointing device 33) that selects one colony detection result from the multiple colony detection results displayed on the display unit in response to a user operation; and a counting unit (e.g., MCU 30) that applies the colony detection parameters used to obtain the one colony detection result selected by the selection unit to the image of the individual to be inspected, and counts the number of colonies contained in the image of the individual to be inspected.
- an acquisition unit e.g., MCU 30, main camera 11
- a display processing unit e.g., MCU 30, display control circuit 36
- Aspect D1 makes it easy to adjust the inspection parameters in the colony counting device 1. That is, the user can indirectly select the colony detection parameters by comparing multiple colony detection results and selecting one colony detection result that suits his or her sense. This makes it easy to adjust the colony detection parameters.
- the selection unit may select one colony detection result in response to a user operation from among multiple colony detection results that are displayed simultaneously on the display unit or that are displayed by switching between them one by one in order. In either case, it can be said that the multiple colony detection results are displayed in a comparative manner.
- Point of View D2 The colony counting device described in Point of View D1, in which each of the multiple colony detection results is an image of the inspected individual (e.g., original image, binarized image) with a marker indicating the detected position of the colony superimposed thereon.
- Each of the multiple colony detection results may include a mark (e.g., a cross mark, a binarized image overlaid on the original image) indicating the detected position of the colony.
- a mark e.g., a cross mark, a binarized image overlaid on the original image
- a colony counting device according to any one of points of views D1 to D3, in which the multiple colony detection results are associated with the colony detection parameters used to detect the colonies and displayed on the display unit.
- the colony detection results may include a binarized image, the detected positions of the colonies, and the number of colonies. This will make it easier for the user to select a colony detection result that best suits their own sensibilities.
- a colony counting device according to any one of Viewpoints D1 to D5, further comprising a determination unit (e.g., MCU30, S121) which, when the one colony detection result is selected from the multiple colony detection results obtained using the different colony detection parameters that serve as primary candidates, determines multiple different colony detection parameters that serve as secondary candidates based on the colony detection parameters used to obtain the one colony detection result; when the multiple different colony detection parameters that serve as secondary candidates are determined by the determination unit, the display processing unit displays the multiple colony detection results obtained by applying the multiple different colony detection parameters that serve as secondary candidates to the image of the inspection individual on the display unit in a comparable manner (e.g., S122, S123); the selection unit selects one colony detection result from the multiple colony detection results that are simultaneously displayed on the display unit and that are obtained by applying the multiple different colony detection parameters that serve as secondary candidates in accordance with a user operation (e.g., S124); and the counting unit applies the colony detection parameters used to obtain the
- secondary candidate colony detection parameters may be determined from the primary candidate colony detection parameters. This allows the colony detection parameters to be narrowed down in stages.
- FIG. D7 The colony counting device according to Viewpoint D6, in which, when the one colony detection result is selected from the multiple colony detection results obtained using the different colony detection parameters serving as the secondary candidates, the determination unit determines multiple different colony detection parameters serving as tertiary candidates based on the colony detection parameters used to obtain the one colony detection result, and when the multiple different colony detection parameters serving as tertiary candidates are determined by the determination unit, the display processing unit displays the multiple colony detection results obtained by applying the multiple different colony detection parameters serving as tertiary candidates to the image of the test individual on the display unit in a comparative manner, the selection unit selects one colony detection result from the multiple colony detection results displayed on the display unit and obtained by applying the multiple different colony detection parameters serving as tertiary candidates in accordance with a user operation, and the counting unit applies the colony detection parameter used to obtain the one colony detection result selected by the selection unit to the image of the test individual, and counts the number of colonies included in the image of the test individual.
- tertiary candidate colony detection parameters may be determined from secondary candidate colony detection parameters. This allows the colony detection parameters to be narrowed down in stages.
- Viewpoint D9 The colony counting device described in Viewpoint D6 or D7, wherein the multiple secondary candidate colony detection parameters include a first colony detection parameter corresponding to the one colony detection result selected by the selection unit from among the multiple primary candidate colony detection parameters, a second colony detection parameter that is larger than the first colony detection parameter, and a third colony detection parameter that is smaller than the first colony detection parameter.
- the multiple secondary candidate colony detection parameters may include colony detection parameters selected from the primary candidates. This allows the user to gradually approach the colony detection parameters that are closest to their own sense.
- the present invention further includes a calculation unit (e.g., MCU 30) that calculates the multiple colony detection results using different colony detection parameters, the calculation unit calculates multiple colony detection results in advance using multiple colony detection parameters that are primary candidates (e.g., three sensitivities out of five sensitivities) and multiple colony detection parameters that are secondary candidates (e.g., the remaining two sensitivities out of five sensitivities), and stores the multiple colony detection results in a memory unit (e.g., storage device 35), the display processing unit reads out the multiple colony detection results obtained using the multiple colony detection parameters that are primary candidates from the memory unit and displays them on the display unit, and the selection unit selects the multiple colony detection results obtained by applying the multiple colony detection parameters that are primary candidates and displayed on the display unit.
- a calculation unit e.g., MCU 30
- the calculation unit calculates multiple colony detection results in advance using multiple colony detection parameters that are primary candidates (e.g., three sensitivities out of five sensi
- a first type of colony detection parameter e.g.
- Point of View D12 The colony counting device according to Point of View D11, wherein the first type of colony detection parameter is any one of the following: binary sensitivity that serves as a reference when generating a binary image used to detect colonies from the image of the test individual; on/off of shading correction applied to the image of the test individual; and strength of noise reduction processing applied to the image of the test individual (e.g., size of small particles, lint reduction effect).
- Point of View D13 The colony counting device according to Point of View D11 or D12, wherein the second type of colony detection parameter is any one of: on/off of a reduction process that reduces small particles from the image of the test individual; on/off of a reduction process that reduces irregularities (e.g., lint) from the image of the test individual; and on/off of a reduction process that reduces large particles from the image of the test individual.
- the second type of colony detection parameter is any one of: on/off of a reduction process that reduces small particles from the image of the test individual; on/off of a reduction process that reduces irregularities (e.g., lint) from the image of the test individual; and on/off of a reduction process that reduces large particles from the image of the test individual.
- FIG. 58 The colony counting device according to any one of views D1 to D14, wherein the display processing unit is configured to display a first screen (e.g., UI5800 in FIG. 58) and a second screen (e.g., UI5800 in FIG. 61 and UI6300 in FIG. 63) on the display unit, the first screen being a screen for displaying the multiple colony detection results, and the second screen being a screen for adjusting other colony detection parameters different from the colony detection parameters corresponding to the one colony detection result selected by the user operation on the first screen.
- a first screen e.g., UI5800 in FIG. 58
- a second screen e.g., UI5800 in FIG. 61 and UI6300 in FIG. 63
- Point of View D15 The colony counting device described in Point of View D15, in which the colony detection parameters adjusted through the first screen (e.g., UI5800) are adjusted by selecting one of the multiple colony detection results obtained by applying discretely adjusted image processing parameters (e.g., binarization sensitivity).
- discretely adjusted image processing parameters e.g., binarization sensitivity
- Point of View D16 The colony counting device described in Point of View D14 or D15, wherein the second screen (e.g., UI6300) is a screen that accepts adjustment of colony detection parameters that take continuous values (e.g., the size of small particles, lint reduction effect).
- the second screen e.g., UI6300
- the second screen is a screen that accepts adjustment of colony detection parameters that take continuous values (e.g., the size of small particles, lint reduction effect).
- a method for controlling a colony counting device comprising: acquiring an image of an inspection individual obtained by imaging the inspection individual; displaying on a display unit a plurality of colony detection results obtained by applying different colony detection parameters to the acquired image of the inspection individual so as to be contrasted; selecting one colony detection result from the plurality of colony detection results displayed on the display unit in response to a user operation; and applying the colony detection parameter used to obtain the one selected colony detection result to the image of the inspection individual, and counting the number of colonies contained in the image of the inspection individual.
- control method is also part of this embodiment.
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Abstract
Description
を介して、図4に示されるPC1bと通信する回路である。通信回路24は、無線通信回路およびLANインタフェース回路を含んでもよい。LANはローカルエリアネットワークの略称である。通信ケーブル26は、たとえば、USBケーブルであってもよい。記憶装置25は、たとえば、制御プログラム27を記憶するリードオンリメモリ(ROM)と、ワークエリアとして利用されるランダムアクセスメモリ(RAM)とを含む。記憶装置25は、たとえば、PC1bにより設定された検査条件28と、メインカメラ11により取得された検査画像29などを記憶してもよい。検査条件28は、たとえば、照明条件や撮像条件、カウント条件などを含みうる。検査画像29は、培地およびサンプルを含むシャーレ15の画像である。
5から検索してひな型を抽出し、DB表示領域61に検索結果を表示してもよい。また、タグ検索絞り込みボタン66が押されると、MCU30は、指定した分類タグでフィルタされたサンプル品だけを表示してもよい。たとえば、複数のサンプル品に対して同じ分類タグが付与されていてもよい。この場合、選択された分類タグが付与されている複数のサンプル品をカウント表55へ追加する。
していてもよい。検査リスト220は、表示装置37に表示されるカウント表55と同じであってもよい。また、検査リスト220にはカウント結果を記入する必要が無いため、カウント結果を記入するためのセルが省略されていてもよい。さらに、ユーザが検査リスト220を培養サンプルの準備に用いる場合、培養時間は必ずしも必要ではない。そのため、培養時間のセルが省略されていてもよい。検査リスト220は、各カウント表を識別するための識別情報として一次元シンボルや二次元シンボルなどの識別画像221を付与されていてもよい。識別画像221は、ユーザの識別情報を含んでいてもよい。
をもたらすが、画像の再取得は不要なものが想定されている。
セル)への情報の登録 図40は、PC1bのMCU30により実行される備考セル等の自由列への情報登録処理を示すフローチャートである。MCU30は、記憶装置35に記憶されたカウントアプリケーションプログラムにしたがって以下の処理を実行する。
る。拡散フィルム4901、4902がともにオンの場合、第一拡散度が実現される。拡散フィルム4901がオンで、拡散フィルム490がオフの場合、第三拡散度が実現される(第二拡散度<第三拡散度<第一拡散度)。拡散フィルム4901がオフで、拡散フィルム490がオンの場合、第四拡散度が実現される(第二拡散度<第四拡散度<第一拡散度)。ここで、第三拡散度は第四拡散度より大きくても、小さくてもよい。あるいは、第三拡散度は第四拡散度と等しくてもよい。これにより、拡散板13cの拡散度を3段階または4段階で切り替え可能となる。
は、表示装置37に表示された複数の検出結果(二値化画像と計数結果)から一つの検出結果をポインタ57により選択する。MCU30は、選択された検出結果を求めるために使用された検査パラメータの候補を正式な検査パラメータ(調整後の検査パラメータ)として確定する。ユーザは、自分の感覚にあった検出結果を選択するだけで検査パラメータを調整できるため、調整作業が非常に容易となろう。
ためのスライドバーである。スライドバー6302は、コロニーとして検出される形状を分割する際のサイズを調整するためのスライドバーである。スライドバー6303は、小粒子低減機能がオンに設定されたときに、その低減効果を調整するためのスライドバーである。スライドバー6304は、糸くず低減機能がオンに設定されたときに、その低減効果を調整するためのスライドバーである。完了ボタン6305が押されたことを検知すると、MCU30は、その時点でスライドバー6301~6304によって調整された四つの検査パラメータを確定して記憶装置35に記憶し、UI6300からUI100に遷移する。
入力される対象セルを特定するセル特定部の一例である。MCU20またはMCU30は、ユーザの操作にしたがった計数指示を生成する計数指示部の一例である。MCU30およびメインカメラ11は、計数指示部で生成された計数指示に基づいて検査個体の画像である検査画像を取得する取得部の一例である。MCU20またはMCU30は、取得部で取得された検査画像に基づき検査個体に含まれるコロニーを計数する計数部の一例である。図19や図20などが例示するように、MCU20またはMCU30は、計数部により計数されたコロニーの数を対象セルに反映する表管理部として機能する。これにより、コロニーの計数結果についての事後処理に関するユーザの負担が軽減される。
ンドから、検査画像の取得を指示するためのコマンドに変更してもよい。これにより、操作可能なボタンの数が削減され、ユーザは、今、何を操作すべきかを容易に判断できるであろう。
査リストのデータを作成するデータ作成部として機能してもよい。
は、前記二値化画像と、前記コロニーの検出位置と、前記コロニーの数と、を含む、観点D1からD4のいずれかに記載のコロニー計数装置。
は、UI100から再びUI5800に遷移して、コロニー検出パラメータの再調整を受け付けてもよい。
Claims (21)
- 検査個体を撮像して得られた検査個体の画像を取得する取得部と、 前記取得部により取得された前記検査個体の画像に対してそれぞれ異なるコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に表示部に表示する表示処理部と、 前記表示部に表示される複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択する選択部と、 前記選択部により選択された前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータを前記検査個体の画像に対して適用して、当該検査個体の画像に含まれるコロニーの数を計数する計数部と、を有するコロニー計数装置。
- 前記複数のコロニー検出結果はそれぞれ、前記検査個体の画像に、コロニーの検出位置を示す目印が重畳された画像である、請求項1に記載のコロニー計数装置。
- 前記複数のコロニー検出結果はそれぞれ、検出されたコロニーの個数を示す数値を含む、請求項1に記載のコロニー計数装置。
- 前記複数のコロニー検出結果は、コロニーを検出するために使用されたコロニー検出パラメータを対応付けられて、前記表示部に表示される、請求項1に記載のコロニー計数装置。
- 前記コロニー検出パラメータに基づき前記検査個体の画像から二値化画像を生成する画像処理部と、 前記二値化画像からコロニーを検出する検出部と、をさらに有し、 前記計数部は、前記検出部により検出されたコロニーの数を計数し、 前記複数のコロニー検出結果は、前記二値化画像と、前記コロニーの検出位置と、前記コロニーの数と、を含む、請求項1に記載のコロニー計数装置。
- 一次候補となるそれぞれ異なるコロニー検出パラメータを用いて取得された前記複数のコロニー検出結果から前記一つのコロニー検出結果が選択されると、前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータに基づき二次候補となるそれぞれ異なる複数のコロニー検出パラメータを決定する決定部をさらに有し、 前記決定部により前記二次候補となるそれぞれ異なる複数のコロニー検出パラメータが決定されると、 前記表示処理部は、前記検査個体の画像に対して前記二次候補となるそれぞれ異なる複数のコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に前記表示部に表示し、 前記選択部は、前記表示部に表示され、前記二次候補となるそれぞれ異なる複数のコロニー検出パラメータを適用して得られた前記複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択し、 前記計数部は、前記選択部により選択された前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータを前記検査個体の画像に対して適用して、当該検査個体の画像に含まれるコロニーの数を計数する、請求項1に記載のコロニー計数装置。
- 前記決定部は、前記二次候補となるそれぞれ異なるコロニー検出パラメータを用いて取得された前記複数のコロニー検出結果から前記一つのコロニー検出結果が選択されると、前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータに基づき三次候補となるそれぞれ異なる複数のコロニー検出パラメータを決定し、 前記決定部により前記三次候補となるそれぞれ異なる複数のコロニー検出パラメータが決定されると、 前記表示処理部は、前記検査個体の画像に対して前記三次候補となるそれぞれ異なる複数のコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に前記表示部に表示し、 前記選択部は、前記表示部に表示された、前記三次候補となるそれぞれ異なる複数のコロニー検出パラメータを適用して得られた前記複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択し、 前記計数部は、前記選択部により選択された前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータを前記検査個体の画像に対して適用して、当該検査個体の画像に含まれるコロニーの数を計数する、請求項6に記載のコロニー計数装置。
- 前記二次候補となる複数のコロニー検出パラメータの間隔は、前記一次候補となる複数のコロニー検出パラメータの間隔よりも精緻である、請求項6に記載のコロニー計数装置。
- 前記二次候補となる複数のコロニー検出パラメータは、 前記一次候補となる複数のコロニー検出パラメータのうち、前記選択部により選択された前記一つのコロニー検出結果に対応する第一のコロニー検出パラメータと、 前記第一のコロニー検出パラメータより大きな第二のコロニー検出パラメータと、 前記第一のコロニー検出パラメータより小さな第三のコロニー検出パラメータと、を含む、請求項6に記載のコロニー計数装置。
- それぞれ異なるコロニー検出パラメータを用いて前記複数のコロニー検出結果を演算する演算部をさらに有し、 前記演算部は、一次候補となる複数のコロニー検出パラメータと二次候補となる複数のコロニー検出パラメータとを用いて予め複数のコロニー検出結果を演算し、当該複数のコロニー検出結果を記憶部に記憶させ、 前記表示処理部は、前記一次候補となる複数のコロニー検出パラメータを用いて得られた複数のコロニー検出結果を前記記憶部から読み出して前記表示部に表示し、 前記選択部は、前記表示部に表示される、前記一次候補となる複数のコロニー検出パラメータを適用して得られた前記複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択し、 前記表示処理部は、前記一つのコロニー検出結果と、前記二次候補となる複数のコロニー検出パラメータを用いて得られた複数のコロニー検出結果と、を前記記憶部から読み出して前記表示部に表示し、 前記選択部は、前記表示部に表示される、前記一つのコロニー検出結果と、前記二次候補となる複数のコロニー検出パラメータを適用して得られた前記複数のコロニー検出結果と、のうちユーザ操作に応じて一つのコロニー検出結果を選択し、 前記計数部は、前記選択部により選択された前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータを前記検査個体の画像に対して適用して、当該検査個体の画像に含まれるコロニーの数を計数する、請求項6に記載のコロニー計数装置。
- 第一の種類のコロニー検出パラメータが前記ユーザ操作に応じて確定されて保存部に保存されると、 前記表示処理部は、前記検査個体の画像に対して、前記第一の種類のコロニー検出パラメータを共通に適用しつつ、それぞれ異なる第二の種類のコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に前記表示部に表示し、 前記選択部は、前記表示部に表示された、前記それぞれ異なる第二種類のコロニー検出パラメータを適用して得られた前記複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択し、 前記計数部は、前記選択部により選択された前記一つのコロニー検出結果を得るために使用された前記第一の種類のコロニー検出パラメータと前記第二の種類のコロニー検出パラメータとを、前記検査個体の画像に対して適用して、当該検査個体の画像に含まれるコロニーの数を計数する、請求項1に記載のコロニー計数装置。
- 前記第一の種類のコロニー検出パラメータは、 前記検査個体の画像からコロニーを検出するために使用される二値化画像を生成する際の基準となる二値化感度、 前記検査個体の画像に対して適用されるシェーディング補正のオン/オフ、および、 前記検査個体の画像に対して適用されるノイズ低減処理の強度のうちのいずれかである、請求項11に記載のコロニー計数装置。
- 前記第二の種類のコロニー検出パラメータは、 前記検査個体の画像から小粒子を低減する低減処理のオン/オフ、 前記検査個体の画像から異形物を低減する低減処理のオン/オフ、および 前記検査個体の画像から大粒子を低減する低減処理のオン/オフ、のうちのいずれかである、請求項11に記載のコロニー計数装置。
- 前記表示処理部は、前記表示部に、第1の画面と、第2の画面とを表示するように構成されており、 前記第1の画面は、前記複数のコロニー検出結果を表示する画面であり、 前記第2の画面は、前記第1の画面に対する前記ユーザ操作により選択された前記一つのコロニー検出結果に対応するコロニー検出パラメータとは異なる他のコロニー検出パラメータを調整する画面である、請求項1に記載のコロニー計数装置。
- 前記第1の画面を通じて調整されるコロニー検出パラメータは、離散的に調整された画像処理パラメータを適用して得られた前記複数のコロニー検出結果のうち前記一つのコロニー検出結果を選択することで調整される、請求項14に記載のコロニー計数装置。
- 前記第2の画面は、連続的な値をとるコロニー検出パラメータの調整を受け付ける画面である、請求項14に記載のコロニー計数装置。
- 前記表示処理部は、前記表示部に、 前記ユーザ操作に応じて前記選択部により選択された前記一つのコロニー検出結果と、 当該一つのコロニー検出結果に対応する前記検査個体の識別情報と、 当該検査個体についての培養条件と、 コロニーの数と、を含む結果表示画面を表示するように構成されている、請求項1に記載のコロニー計数装置。
- 前記表示処理部は、前記複数のコロニー検出結果を対比可能に
示す調整画面を前記表示部に表示し、 前記調整画面を通じて前記選択部により選択された前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータが保存部に保存されると、前記表示処理部は、前記調整画面から前記結果表示画面に遷移し、 前記結果表示画面において、前記調整画面への遷移が指示されると、前記表示処理部は、前記結果表示画面から前記調整画面に遷移し、 前記選択部は、前記調整画面を通じて前記コロニー検出パラメータの再調整を受け付ける、請求項17に記載のコロニー計数装置。 - 検査個体を撮像して得られた検査個体の画像を取得することと、 前記取得された前記検査個体の画像に対してそれぞれ異なるコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に表示部に表示することと、 前記表示部に表示される複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択することと、 前記選択された前記一つのコロニー検出結果を得るために使用されたコロニー検出パラメータを正式なコロニー検出パラメータとして保存することと、を有するコロニー計数装置の制御方法。
- 請求項19に記載されたコロニー計数装置の制御方法をプロセッサに実行させるプログラム。
- 取得部により取得された検査個体の画像に対してそれぞれ異なる第一種類のコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に表示部に表示し、前記表示部に表示される複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択し、当該選択された一つのコロニー検出結果を得るために使用された第一種類のコロニー検出パラメータを記憶装置に保存する第一ステップと、 前記取得部により取得された前記検査個体の画像に対して、前記一つのコロニー検出結果に適用された第一種類のコロニー検出パラメータと、それぞれ異なる第二種類のコロニー検出パラメータを適用して得られた複数のコロニー検出結果を対比可能に前記表示部に表示し、前記表示部に表示された複数のコロニー検出結果のうちユーザ操作に応じて一つのコロニー検出結果を選択し、当該選択された一つのコロニー検出結果を得るために使用された第二種類のコロニー検出パラメータを前記記憶装置に保存する第二ステップと、を有するコロニー計数装置の制御方法。
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| JP2011024485A (ja) * | 2009-07-24 | 2011-02-10 | Olympus Corp | 細胞画像解析装置 |
| JP2015149955A (ja) * | 2014-02-17 | 2015-08-24 | 富士通株式会社 | コロニー検出プログラム、コロニー検出方法及びコロニー検出装置 |
| JP2017042146A (ja) * | 2015-08-28 | 2017-03-02 | 株式会社エヌテック | 微生物の検出方法、微生物の検出装置及びプログラム |
| WO2021240986A1 (ja) * | 2020-05-29 | 2021-12-02 | 富士フイルム株式会社 | 細胞画像解析装置、細胞画像解析装置の作動方法、細胞画像解析装置の作動プログラム |
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| JP2011024485A (ja) * | 2009-07-24 | 2011-02-10 | Olympus Corp | 細胞画像解析装置 |
| JP2015149955A (ja) * | 2014-02-17 | 2015-08-24 | 富士通株式会社 | コロニー検出プログラム、コロニー検出方法及びコロニー検出装置 |
| JP2017042146A (ja) * | 2015-08-28 | 2017-03-02 | 株式会社エヌテック | 微生物の検出方法、微生物の検出装置及びプログラム |
| WO2021240986A1 (ja) * | 2020-05-29 | 2021-12-02 | 富士フイルム株式会社 | 細胞画像解析装置、細胞画像解析装置の作動方法、細胞画像解析装置の作動プログラム |
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