WO2009123750A2 - Dispositif de mesure de trajectoire libre à 3 axes, sans contact, déterministe, haute vitesse, et dispositif d'imagerie de trajectoire libre - Google Patents

Dispositif de mesure de trajectoire libre à 3 axes, sans contact, déterministe, haute vitesse, et dispositif d'imagerie de trajectoire libre Download PDF

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Publication number
WO2009123750A2
WO2009123750A2 PCT/US2009/002095 US2009002095W WO2009123750A2 WO 2009123750 A2 WO2009123750 A2 WO 2009123750A2 US 2009002095 W US2009002095 W US 2009002095W WO 2009123750 A2 WO2009123750 A2 WO 2009123750A2
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WIPO (PCT)
Prior art keywords
data
sensors
sensor
information
processor
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Ceased
Application number
PCT/US2009/002095
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WO2009123750A3 (fr
Inventor
Justin G. Downs, Iii
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Crowsocs Inc
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Crowsocs Inc
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Publication date
Priority claimed from US12/080,801 external-priority patent/US8119975B2/en
Application filed by Crowsocs Inc filed Critical Crowsocs Inc
Publication of WO2009123750A2 publication Critical patent/WO2009123750A2/fr
Publication of WO2009123750A3 publication Critical patent/WO2009123750A3/fr
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/107—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with manual scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0414—Scanning an image in a series of overlapping zones

Definitions

  • the present invention relates to the field of scanning technology, position sensing, and combinations of scanning and position sensing I O
  • Scanners used for imaging have typically been constrained b> the need to have the CIS step repeatedly a finite distance At each step, a scan is taken and stored in some memory device, usually at sequential addresses within the device This type of s>stem is limited by the need to 15 constrain the CIS sensor motion to step in onl> 1 planar direction If the motion of the CIS sensor is not parallel to previous motion, the possibility would then exist to store identical data at several different address locations in memory
  • a surface configurable mouse is described in Published U S Application 20070152966 (Krah et al ) as a configurable mouse with an extended sensing surface, which provides the mouse a 5 customizable, programmable or adaptable way of generating inputs, the mouse including an arbitrarily shaped grippable member having a 3D shape, a position detection mechanism that detects the movement of the mouse along a surface, a multipoint touch detection mechanism that detects one or more objects that are contacting or in close proximity to a substantially large portion of the grippable member, and a controller for processing signals generated by the position detection 0 mechanism and multipoint touch detection mechanism
  • the Krah et al reference discloses [0108] Different arrangements of lights and sensors may be used In one embodiment, a single sensor and a single light s>stem is used In another embodiment, a single sensor and multiple light systems firing at different times is used This may be done to acquire stereoscopic images In another embodiment, multiple sensors and a single light source is used Noise rejection from ambient light may be accomplished by
  • a two-dimensional coordinate signal input apparatus that includes a scrollball module and a microprocessor
  • the scrollball module has a scrollball and at least two w heels in contact with the scrollball for revolving thereby, so that the scrollball module is capable of detecting a rolling movement of the scrollball and outputting a rolling signal in response to an impetus caused by a user
  • the microprocessor has a scrollball program defining a two-dimensional coordinate system for receiving the rolling signal from the scrollball module and transforming the rolling signal into a two-dimensional control signal to control a scrolling movement of a scrollbar of an application program
  • the two-dimensional coordinate system has four zones so that when the scrollball moves toward a certain zone of the four zones, the scrollbar of the application program is moved toward a certain direction corresponding to the certain zone
  • a reading and trajectory positioning system are combined into a single moveable element that combined both functions
  • the trajectory positioning component of the moveable element comprises two sensors at a fixed distance of separation between the two elements
  • Each sensor is capable of receiving information from at least one emitter and preferably two emitters (one for each receiver) on the moveable element
  • the combination of the two sensors enables tracking of position (dual sensing of position) by reading length of movement, width of movement (2- dimensional plotting) and determining an angularity component so that an absolute position and direction of movement of the moveable element can be determined
  • Also on the moveable element is a distinct and separate third sensing device that senses and reports data (other data) that is distinct from position or movement of the moveable element
  • the third sensor may report data on the surface over which the moveable element is being moved (e g , topography, alphanumerics, musical notes, sensed data such as temperatures, moisture content, infrared reflected signals to determine subsurface properties, magnetic readings, holographic readings, optically reflected
  • the information provided on the trajectory readings are used to correct, normalize, interpret oi refine the other information sensed from the third sensor
  • the content of the instantaneous position data can be used in real-time, present time or future time in association with the third sensed data obtained or acquired contemporaneously with the position data to refine, enhance, correct, orient, reorient, compile, improve, organize, translate or otherwise treat the content of the third data
  • Figure 1 shows a scanning face of a moveable device according to the present technology having a line of image scanners/sensors and two emitting/receiving position LED sensors
  • Figure 2 shows a distorted image read from a scanner
  • Figure 3 shows a corrected image of the distorted image from Figure 2
  • Figure 4 A shows a single hand swept read content of a musical score
  • Figure 4B shows a second single hand swept read content of a musical score that overlaps the read data of Figure 4 A
  • Figure 4C shows a combination of the single hand swept read content of a musical score of Figures 4A and 4B
  • Figure 4D shows a completely reconstructed musical score created from multiple individual hand sweeps such as those of Figures 4A and 4D
  • the present technology includes both methods and devices such as data providing device associated with a trajectory sensing system comprising a frame, the frame supporting at least two sensing receivers and at least one emitter for the sensing receivers, the sensors sensing movement with respect to a surface, the frame supporting a third sensor that senses information from the surface at least in addition to movement, a communication link from the two sensing receivers to a data storage device, a communication link from the third sensor to a data storage device, and a processor that determines position of the system with respect to the surface based at least in part on data from the two sensing receivers
  • the data providing device may have the processor also determine a position of each of the at least two sensing receivers with respect to time
  • the sensing devices are preferably image sensing devices
  • the processor preferably receives data from the sensing devices and executes code to correct received data with respect to distortions in received image data
  • a method for determining the location of at least two points on a scanning device with respect to a surface during obtaining of data from the surface or under the surface, the method comprising while moving a device across a surface and while obtaining data, taking at least two position readings on the surface from the device from fixed locations on the device, while taking two position readings from the device, obtaining information on or under the surface from a sensor on the device, using readings from the at least two position readings to determine a position of the scanning device relative to the surface, and using the position readings of the device relative to the surface to modify the information obtained from on or under the surface
  • the taking of two position readings is preferably done continuously while moving the device and preferably the sensor is an image sensor and the information obtained is image data
  • the device ma> be moved manually across the surface
  • the readings from the at least two position sensors and the information obtained from on or under the surface are used to correct distortion in the obtained information and then to store corrected information
  • the device may comprise an optical navigation device capable of performing deterministic motion measurements wherein the output of the device is a measurement of two-dimensional motion on a planar surface
  • the device may have at least one additional subcomponent selected from the group consisting of a) processing means to provide signal conversion capability between the optical navigation device and an at least 4 bit data port, b) the at least two sensors are separated by a distance of at least 0 5cm such that a 3 r motion axis of rotation about a surface normal vector (z-axis) may be derived using ⁇ -y motion data recovered from the at least two sensor, c) the device is coupled with an external field programmable gated array (FPGA or ASIC
  • 0 communication means in the device for transfer of the free trajectory motion and/or the stored motion of claim g) communication system enabling the free trajectory motion information to be 5 transferred in the form of displacement in an x and y direction and rotation about a defined axis, h) sensor selected from the group consisting of contact image sensors or CMOS sensors, ⁇ ) a processor receiving output of the CIS and which stores the output
  • I O according to a storage algorithm determined in part by the device operation characteristics
  • a single device may have both two sets of optical emitter-optical receiver pairs (at least two receivers and one emitter, and preferably two emitters and two receivers as pairs) spatially fixed within the single device along with a separate sensor that provides a distinctly di fferent type of information or data as compared to the two sets of em itters/receivers
  • two standard computer mouse 0 components or advanced cursor directing mouse components from a computer system may be spatially fixed together so that two 2D scanning points are moved in tandem as the movement of the device Ordina ⁇ l ⁇ in the prior art, a single set of emitter/recei
  • the device may also be capable of performing a process wherein the position of each of the two sensors is used to determine the position of the third sensor with respect to a surface being sensed
  • a device is developed that first determines the free path trajector) of the CIS sensor and then mathematically determines the proper location for the CIS output to be stored in memory accounting for possible rotation of the CIS sensor and/or displacements in the x and y axis
  • the technology described herein may use two sensors, such as laser mouse sensors to output x,y motion information located a finite, known distance apart By knowing the distance between the sensors, rotational information of the device can be determined mathematically The known rotational information and x,y displacement information is used to determine memory addresses for storing CIS scan data
  • centroid point a predefined point relative to the two sensors, conveniently shown here as a midpoint between the two sensors (the centroid point) is considered as the center of motion
  • movement of the device will also provide knowledge and data of a motion axis of rotation, such as that definable about the centroid
  • the axis of rotation can be mathematically translated to essentially any point along the line established between and extending through the two sensors It is also possible to provide an arbitrary center of rotation anywhere on a plane containing the line between the two sensors Theoretically, this center of rotation could be unpractically defined as any specific point in the universe
  • the centroid lies within a plane within which or on which the device is operating
  • the determination of the properties of the surface that is being analyzed/recorded by the movement of the tv ⁇ o sensors can be translated into useful information by conventional trigonometric relations and/or the use of more specialized algorithms to convert the raw data into structured meaning for later use In this way, the data will enable a record to be formed of the specific path of the device as it moves across a surface, including incidental or significant rotational movement of the device with respect to the surface
  • the recorded data of the movement of the device can be used with other information obtained during the passage of the device over the surface (e g , sonogram data, scanned image date, even subsurface analysis by non-invasive observation techniques, even including X-ra>, fluoroscopy, magnetic tracing and the like) and the data of the movement can be used to rationalize, correct, orient, reorient, or otherwise treat the other information to place it into better quality, higher quality, better resolution, more precise information content than would be available from that other information source b> an uncorrected hand scan or even mechanical scan that is subject to vibration effects or other image deteriorating movement during obtaining of that other information
  • other information source b> an uncorrected hand scan or even mechanical scan that is subject to vibration effects or other image deteriorating movement during obtaining of that other information
  • the system is also capable or being used in scanning a system with multiple and overlapping passes, which can actually increase the resolution of a final image by interpolation of data in combination with the correction of data
  • a small scale device e g , a device w ith a 10cm scan line
  • the dual scanner system provides substantive data of the relative location of information obtained from all scans
  • a composite can then be constructed from the totality of the scanned/observed/recorded other information and a final data description of the surface or object is created
  • This device can be scanning written music, security checks, map reading, manufacturing defect analysis and determination, scanning and converting written material (for conversion to spoken language or for translation)
  • the fixed dimensional association of two computer mouse devices can simulate the function of the present system for 2D and rotational data
  • Mouse input devices for computers are well known in the art
  • the movement of the mouse in an X-Y plane typicall actuates a mechanical, optical or electrical device within the mouse that produces X and Y position signals that are conveyed to the computer
  • the computer typically uses the mouse X and Y position signals to manipulate the display of the computer screen, allowing a user to control a program
  • a computer mouse also typically has one or more buttons which allow the user to further control a computer program
  • the mouse and mouse button allow the user to move a cursor or other pointing device to a specific area of the computer screen and depress the one or more buttons to activate specific computer program functions
  • the mouse buttons are actuated by pressing the button downward
  • the present device may or may not have the specific equivalent of the buttons on a mouse, but may have merely a single on-off or activation button Typical and advanced mouse devices, with hard wire connections or RF or other wireless connections
  • the third scanner may be any scanner or data accessing/generating device as indicated herein, but is preferably an image scanner Image scanner
  • a scanner is a device that analyzes images, printed text, or handwriting, or an object (such as an ornament) and converts it to a digital image
  • Most scanners today are variations of the desktop (or flatbed) scanner
  • the flatbed scanner is the most common in offices Hand-held scanners, where the device is moved by hand, were br ⁇ efl> popular but are now not used due to the difficulty of obtaining a high-quality image
  • Both these types of scanners use charge coupled device (CCD) or Contact Image Sensor (CIS) as the image sensor, whereas older drum scanners use a photomultiplier tube as the image sensor
  • CCD charge coupled device
  • CIS Contact Image Sensor
  • Another category of scanner is a rotary scanner used for high-speed document scanning This is another kind of drum scanner, but it uses a CCD array instead of a photomultiplier
  • t> pes of scanners are planetary scanners, which take photographs of books and documents, and 3D scanners, for producing three-dimensional models of objects, but this type of scanner is considerably more expensive relative to other types of scanners
  • Figure 4A shows a single hand swept read content of a musical score
  • Figure 4B shows a second single hand swept read content of a musical score that overlaps the read data of Figure 4A
  • Figure 4C shows a combination of the single hand swept read content of a musical score of
  • Figure 4D shows a completel> reconstructed musical score created from multiple individual hand sweeps such as those of Figures 4A and 4D
  • a narrow and non-limiting description of a device enabled herein includes a device comprising a) a frame, b) the frame supporting at least two sensing receivers and at least one emitter for the sensing receivers, the sensors sensing movement and/or position with respect to a surface, c)the frame supporting a third sensor that senses information from the surface at least in addition to movement, d) a communication link from the two sensing receivers to a data storage device or to a 5 processor and then a data storage device, e) a communication link from the third sensor to a data storage device or to a processor and then a data storage device, and
  • This device ma ⁇ have at least one additional subcomponent selected from the group consisting of
  • processing means to provide signal conversion capability between the optical navigation device and an at least 1 bit data port
  • the at least two sensors are separated by a distance of at least 0 5cm such that a 3 rd motion axis of rotation about a surface normal vector (z-axis) may be derived using
  • the device is coupled with an external processor selected from the group consisting of an FPGA, ASIC, CPU and computer to provide signal processing capability to determine rotation about the surface,
  • communication s> stem enabling the free trajectory motion information to be 5 transferred in the form of displacement in an x and y direction and rotation about a defined axis
  • sensor selected from the group consisting of contact image sensors or CMOS sensors,
  • a processor receiving output of the CIS and which stores the output 0 according to a storage algorithm determined in part by the device operation characteristics
  • the device comprises sensors such as a mouse sensor typically used for non-deterministic motion detection as when coupled to a computer cursor Drum
  • Drum scanners capture image information with photomultiplier tubes (PMT) rather than the charged coupled device (CCD) arrays found in flatbed scanners and inexpensive film scanners
  • PMT photomultiplier tubes
  • CCD charged coupled device
  • Reflective and transmissive originals are mounted to an acrylic c> Under, the scanner drum, which rotates at high speed while it passes the object being scanned in front of precision optics that deliver image information to the PMTs
  • Most modern color drum scanners use 3 matched PMTs, which read red, blue and green light respectively Light from the original artwork is split into separate red, blue and green beams in the optical bench of the scanner
  • drum scanners One of the unique features of drum scanners is the ability to control sample area and aperture size independently
  • the sample size is the area that the scanner encoder reads to create an individual pixel
  • the aperture is the actual opening that allows light into the optical bench of the scanner
  • the ability to control aperture and sample size separately is particularly useful for smoothing film gram when scanning black and white and color negative originals
  • drum scanners are capable of scanning both reflective and transmissive artwork, a good quality flatbed scanner can produce excellent scans from reflective artwork As a result, drum scanners are rarely used to scan prints now that high quality inexpensive flatbed scanners are readily available Film, however, is where drum scanners continue to be the tool of choice for high- end applications Because film can be wet mounted to the scanner drum and because of the exceptional sensitivity of the PMTs, drum scanners are capable of capturing very subtle details in film originals
  • drum scanners are capable of resolutions up to 12,000
  • drum scanners In most current graphic arts operations, very high quality flatbed scanners have replaced drum scanners, being both less expensive and faster. However, drum scanners continue to be used in high-end applications, such as museum-quality archiving of photographs and print production of high-quality books and magazine advertisements. In addition, due to the greater availability of pre- owned units many fine art photographers are acquiring drum scanners, which has created a new niche market for the machines.
  • a flatbed scanner is usually composed of a glass pane (or platen), under which there is a bright light (often xenon or cold cathode fluorescent) which illuminates the pane, and a moving optical array, whether CCD or CIS.
  • Color scanners typically contain three rows (arrays) of sensors with red, green, and blue filters. Images to be scanned are placed face down on the glass, an opaque cover is lowered over it to exclude ambient light, and the sensor array and light source move across the pane reading the entire area. An image is therefore visible to the charge-coupled device only because of the light it reflects. Transparent images do not work in this way, and require special accessories that illuminate them from the upper side.
  • Hand scanners are manual devices which are dragged across the surface of the image to be scanned. Scanning documents in this manner requires a steady hand, as an uneven scanning rate would produce distorted images. They typically have a "start" button which is held by the user for the duration of the scan, some switches to set the optical resolution, and a roller which generates a clock pulse for synchronisation with the computer. Most hand scanners were monochrome, and produced light from an array of green light emitting diodes (LEDs) to illuminate the image. A typical hand scanner also had a small window through which the document being scanned could be viewed. They were popular during the early 1990s and usually had a proprietary interface module specific to a particular type of computer, usually an Atari® ST or Commodore AmigaTM.
  • LEDs green light emitting diodes
  • Scanners typically read red-green-blue color (RGB) data from the array. This data is then processed with some proprietary algorithm to correct for different exposure conditions and sent to the computer, via the device's input/output interface (usually SCSI or LPT in machines pre-dating the USB standard) Color depth vanes depending on the scanning array characteristics, but is usually at least 24 bits High quality models have 48 bits or more color depth
  • the other qualifying parameter for a scanner is its resolution, measured in pixels per inch (ppi), sometimes more accurately referred to as samples per inch (spi)
  • ppi pixels per inch
  • spi samples per inch
  • a typical flatbed scanner has an optical resolution of 1600-3200 ppi
  • high-end flatbed scanners can scan up to 5400 ppi
  • a good drum scanner has an optical resolution of 8000-14,000 ppi
  • Scanning the document is only one part of the process For the scanned image to be useful, it must be transferred to a computer or at least a processor that provides the image data which is then stored
  • the amount of data generated by a scanner can be ver> large a 600 DPI 9"x l 1 " (slightly larger than A4 paper) uncompressed 24-b ⁇ t image consumes about 100 megabytes of uncompressed data in transfer and storage on the host computer
  • Recent scanners can generate this volume of data in a matter of seconds, making a fast connection desirable
  • SCSI Small Computer System Interface
  • USB Universal Serial Bus
  • FIRE WIRE is a somewhat faster interface than USB. FireWire is ideal for scanning high- resolution images which require the transfer of much data.
  • a computer needs software, called a driver, that knows how to communicate with the scanner.
  • Most scanners use a common language, TWAFN.
  • the TWAIN driver originally used for low-end and home-use equipment and now widely used for large-volume scanning, acts as an interpreter between any application that supports the TWAFN standard and the scanner. This means that the application does not need to know the specific details of the scanner in order to access it directly. For example, you can choose to acquire an image from the scanner from within Adobe Photoshop because Photoshop supports the TWAFN standard.
  • scanner drivers that can be also used are:
  • ISIS created by Pixel Translations, which still uses SCSI-II for performance reasons, is used by large, departmental scale, machines.
  • SANE Silicon Access Now Easy
  • OS/2 OS/2
  • Mac OSX Mac OSX
  • Microsoft® Windows a fre/open source API for accessing scanners.
  • SANE does not handle the user interface. This allows batch scans and transparent network access without any special support from the device driver.
  • OCR optical character recognition
  • the scanned result is a non-compressed RGB image which can be transferred to a computer's memory.
  • Some scanner compress and clean up the image using embedded firmware.
  • the image can be processed with a raster graphics program (such as Photoshop or the GIMP) and saved on a storage device (such as a hard disk).
  • a raster graphics program such as Photoshop or the GIMP
  • scanned pictures are stored on a computer's hard disk, normally in image formats such as JPEG, TIFF, Bitmap and PNG.
  • Some scanners can also be used to capture editable text, so long as the text can be read by the computer in a discernable font. This process is called Optical Character Recognition (OCR).
  • OCR Optical Character Recognition
  • Document scanners have document feeders, generally larger than those found on copiers or all-purpose scanners. They scan at lower resolution than other scanners, usually in the range 150 dpi (dots per inch) to 300 dpi, since higher resolution is usually not needed and makes files much larger to store.
  • a large number of scans can be made at high speed, traditionally in grayscale but now in color as well. Many are capable of duplex (two-sided) scanning at or near full speed (20ppm (pages per minute) to 150ppm).
  • Sophisticated document scanners have either firmware o or software that "cleans up" scans as they are produced, eliminating accidental marks and sharpening type. They also usually compress the scan on the fly.
  • Preparation involves taking the papers to be scanned and making sure that they are in order, unfolded, without staples or anything else that might jam the scanner. This is a manual task and can be time consuming. Indexing involves associating keywords with files so they can be found later. This process can be automated in some cases, but may involve manual labour.
  • One common practice is the use of barcode recognition technology. During the preparation process, barcode sheets are inserted into the document files, folders and document groups. Using automatic batch scanning, the documents are saved into the appropriate folders and an index is created for integration into document management software systems.
  • Atiz DIY scanner uses a V- shaped cradle and a V-shaped transparent platen to handle brittle books Often special robotics are used to turn the pages automatically
  • Flatbed scanners are capable of synthesising simple musical scores due to the variable speed (and tone) of their stepper motors This property can be applied for hardware diagnostics, for example the HP Scanjet 5 plays music if powered on with SCSI ID set to zero Windows and Linux based software is available for several brands and types of flatbad scanners to play MIDI files for fun purposes
  • Figure 1 shows a scanning face of a moveable device 2 according to the present technology having a line or array of image scanners/sensors 3 and two emitting/receiving position LED sensors 4 and 6 and an artificial, but preselected, "centroid" point 8
  • software in a processor can read data from the paired LED sensors to determine movement with respect to length, width and angularity
  • the scanners 3 provide image data To whatever degree the scanned image data from sensor array 3 is distorted by movement of the device 2 across a surface to be imaged, the data from the dual sensors 4 and 6 establish a trajectory (e g , 2D and angularity/rotation) that can be used to correct distortions in the scanned data from the array 3
  • a trajectory e g , 2D and angularity/rotation
  • the recorder/pla>er is a portable, hand held and hand driven device for first reading standard musical notation, in the format commonly know n as staff, recognizing the music patterns, notes, clef, time signature, key, etc by signal processing and then reproducing said music audibl)
  • the device also has the capability of outputting the music in MIDI format for direct real-time use to a MIDI instrument or for later download to a computer music interface, sequencer, etc
  • the recorder/plaver is a one dimensional scanning device that operates by acquiring one line of an optical image at a time By moving the scanner across the music staff, repeated scans allow an image of the staff to be reproduced Signal processing allows the musical symbols to be recognized and buffered Subsequently, the music can be pla>ed from the device using built-in small loudspeaker or it can be outputted to the headset jack, or other interface to store the music in the computerized format such as MIDI
  • the system could be connectable to a display, permanent storage, a printer, a s>nthes ⁇ zer and/or other input coding or music output device
  • the scanner height is longer than usual average height of the music notation line including the double or grand staff used for piano
  • the scanner height is 1 5-5 or I 5-4, or I 5-3 inches (3 75cm- 12 7cm, 2 75cm- 10 cm or 3 75cm-7 50cm), although the length of scanner can be greater (e g , 15c, or 20cm) if less maneuverability can be tolerated
  • the device has a built-in 3-ax ⁇ s positioning system w hich allows it to determine the location and rotation of the scanner with regards to the music notation line Combining the positioning results with line scans via a reconstruction algorithm allows the scanner to reconstruct the tv.o dimensional images of the musical staff regardless of the scanner rotation This design allows the scanner size to be small and easy to operate
  • the scanner should recognize the key, time signature and clef data as well as other notation features, such as staff lines, stems, flags, beams, articulation marks, etc associated with note values
  • the scanner should be preferable battery power device
  • the typical usage of the device could be as a tool to pla> the music for those who try to learnable ing a musical instrument, as a tool to play short segment of the music in any place of the melody
  • the scanner can be used to output MIDI signals directly to a sequencer and/or computer for storage, or directly to a MIDI device for real-time play

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Input (AREA)

Abstract

Selon l’invention, un dispositif de fourniture de données associé à un système de détection de trajectoire a au moins un cadre. Le cadre supporte au moins deux récepteurs de détection et au moins un émetteur pour les récepteurs de détection. Les capteurs détectent un mouvement et/ou une position par rapport à une surface. Le cadre supporte un troisième capteur qui détecte des informations (par exemple, des données d'image) provenant de la surface au moins en plus d'un mouvement. Il y a également une liaison de communication des deux récepteurs de détection à un dispositif de stockage de données ; une liaison de communication du troisième détecteur à un dispositif de stockage de données ou à un processeur puis à un dispositif de stockage de données ; et un processeur qui détermine une position du système par rapport à la surface sur la base au moins en partie des données provenant des deux récepteurs de détection.
PCT/US2009/002095 2008-04-04 2009-04-03 Dispositif de mesure de trajectoire libre à 3 axes, sans contact, déterministe, haute vitesse, et dispositif d'imagerie de trajectoire libre Ceased WO2009123750A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/080,801 US8119975B2 (en) 2007-09-26 2008-04-04 High speed deterministic, non-contact, 3-axis free trajectory measurement device and free trajectory imaging device
US12/080,801 2008-04-04
US12/284,707 US20090080035A1 (en) 2007-09-26 2008-09-24 High speed deterministic, non-contact, 3-axis free trajectory measurement device and free trajectory imaging device
US12/284,707 2008-09-24

Publications (2)

Publication Number Publication Date
WO2009123750A2 true WO2009123750A2 (fr) 2009-10-08
WO2009123750A3 WO2009123750A3 (fr) 2010-01-07

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US8428394B2 (en) 2010-05-25 2013-04-23 Marcus KRIETER System and method for resolving spatial orientation using intelligent optical selectivity
CN113341168A (zh) * 2021-05-19 2021-09-03 集美大学 基于接触式图像传感器的测速方法、设备及系统
CN113341168B (zh) * 2021-05-19 2024-01-26 集美大学 基于接触式图像传感器的测速方法、设备及系统

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