WO2019127101A1 - Dispositif et procédé d'obtention d'image - Google Patents

Dispositif et procédé d'obtention d'image Download PDF

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Publication number
WO2019127101A1
WO2019127101A1 PCT/CN2017/119006 CN2017119006W WO2019127101A1 WO 2019127101 A1 WO2019127101 A1 WO 2019127101A1 CN 2017119006 W CN2017119006 W CN 2017119006W WO 2019127101 A1 WO2019127101 A1 WO 2019127101A1
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WO
WIPO (PCT)
Prior art keywords
image
target detection
detection object
linear
linear sensors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/119006
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English (en)
Chinese (zh)
Inventor
阳光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen A&E Intelligent Technology Institute Co Ltd
Original Assignee
Shenzhen A&E Intelligent Technology Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen A&E Intelligent Technology Institute Co Ltd filed Critical Shenzhen A&E Intelligent Technology Institute Co Ltd
Priority to CN201780036108.8A priority Critical patent/CN109328455B/zh
Priority to PCT/CN2017/119006 priority patent/WO2019127101A1/fr
Publication of WO2019127101A1 publication Critical patent/WO2019127101A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265—Mixing

Definitions

  • the present invention relates to the field of image detection technologies, and in particular, to an image acquisition device and an image acquisition method.
  • Line array cameras are commonly used to detect continuous materials such as metal, plastic, paper, and fiber.
  • One or more line cameras are used to continuously scan a moving object to be detected line by line to achieve uniform detection of the entire surface.
  • Linear array cameras often need to be used with an encoder when detecting and acquiring images of moving objects.
  • the encoder is used to synchronize the motion of the line camera and the object, so that the vertical magnification and the horizontal magnification of the image acquired by the line camera are the same.
  • the encoder emits a pulse signal required by the line camera to trigger the line camera for image acquisition. However, if the encoder sends out fewer pulse signals, some of the object information will be missing from the image. If the encoder sends out more pulse signals, the image information of the object will be stretched, which makes the image stitching more difficult and requires image passing. Calibration to correct for errors in lateral magnification and longitudinal magnification. Moreover, the cost of the encoder is higher.
  • the technical problem to be solved by the present invention is to provide an image acquisition device and an image acquisition method, which use at least two linear sensors to scan a target detection object, and process the image according to a proportional relationship of images acquired at different times to generate an image.
  • the final image enables image integration without the aid of an encoder, reducing costs.
  • the first technical solution adopted by the present invention is to provide an image acquisition device, the image acquisition device comprising at least two linear sensors and a processor; the linear sensor is coupled to the processor The at least two linear sensors are disposed in parallel with each other, and the separation distance is a fixed value; the linear sensor is configured to scan the target detection object, and send the scanned image to a time stamp corresponding to the image to
  • the processor is configured to process, according to a preset algorithm, a timestamp corresponding to an image of the same feature position of the target detection object acquired by the at least two linear sensors, and the fixed value, And obtaining a proportional relationship of the images scanned by the linear sensor at different times, and synthesizing the images scanned by the linear sensors at different times according to the proportional relationship to obtain a complete image of the target detection object.
  • the second technical solution adopted by the present invention is to provide a method for image acquisition, the image acquisition method comprising: the image acquisition device scanning a target detection object by using at least two linear sensors Obtaining an image, and acquiring a timestamp corresponding to the image, wherein the at least two linear sensors are disposed in parallel with each other, and the separation distance is a fixed value; the at least two linear sensors are paired according to a preset algorithm.
  • the image acquiring device of the present invention comprises at least two linear sensors and a processor; at least two linear sensors are arranged in parallel with each other and the separation distance is a fixed value;
  • the linear sensor is configured to scan the target detection object, and send a time stamp corresponding to the scanned image and the image to the processor;
  • the processor is configured to use the same algorithm to acquire the same target detection object of the at least two linear sensors.
  • the time stamp corresponding to the image of the feature position and the fixed value are processed to obtain the proportional relationship of the images scanned by the linear sensor at different times, and the images scanned by the linear sensor at different times are synthesized according to the proportional relationship to obtain the target. Detecting the complete image of the object
  • the invention uses at least two linear sensors to scan the target detection object, and determines the proportional relationship of the images acquired by the same linear sensor at different times according to a preset algorithm, and processes the image according to the proportional relationship to generate a final
  • the image can be integrated without the aid of an encoder, reducing costs.
  • FIG. 1 is a schematic structural view of an embodiment of an image acquisition device of the present invention
  • FIG. 2 is a schematic structural view of a first embodiment of at least two linear sensors of the image acquisition device of FIG. 1;
  • FIG. 3 is a schematic structural view of a second embodiment of at least two linear sensors of the image acquisition device of the present invention.
  • FIG. 4 is a schematic flow chart of an embodiment of an image acquisition method according to the present invention.
  • the image acquisition device of the present embodiment includes at least two linear sensors and a processor, and the linear sensor is coupled to the processor. Wherein at least two linear sensors are arranged in parallel with respect to each other, and the separation distance is a fixed value.
  • the linear sensor is configured to scan the target detection object, and send the scanned image to the processor with a time stamp corresponding to the image.
  • the processor is configured to process, according to a preset algorithm, a time stamp corresponding to an image of a same feature position of the target detection object acquired by the at least two linear sensors and a fixed value of a separation distance between the linear sensors, to obtain a linear sensor differently
  • the proportional relationship of the images scanned at the moment, and the images scanned by the linear sensors at different times are synthesized according to the proportional relationship to obtain a complete image of the target detection object.
  • FIG. 1 is a schematic structural diagram of an embodiment of the image acquisition apparatus of the present invention
  • FIG. 2 is at least the image acquisition apparatus of FIG. A schematic structural view of a first embodiment of two linear sensors.
  • the image acquisition device 10 of the present embodiment includes at least two linear sensors 11 and a processor 12, wherein at least two linear sensors 11 are coupled to the processor 12.
  • the number of linear sensors of the image acquisition device 10 is not particularly limited and may be two or three, or other numbers.
  • the at least two linear sensors 11 include a first linear sensor 111 and a second linear sensor 112, and the first linear sensor 111 and the second linear sensor 112 are coupled to the processor 12, respectively.
  • the scanning frequencies of the first linear sensor 111 and the second linear sensor 112 are the same.
  • first linear sensor 111 and the second linear sensor 112 are disposed in parallel with each other, and the separation distance is a fixed value.
  • first linear sensor 111 and the second linear sensor 112 are perpendicular to the running direction of the target detection object.
  • first linear sensor 111 and the second linear sensor 112 are at a specific angle to the running direction of the target detection object.
  • the positional relationship between the running direction of the target detection object and the first linear sensor 111 and the second linear sensor 112 is determined as the case may be, and is not specifically limited herein.
  • the first linear sensor 111 and the second linear sensor 112 included in the at least two linear sensors 11 may be located in the same or different line array cameras.
  • At least two linear sensors 11 are used to scan the target detection object, and send the scanned image to the processor 12 with a time stamp corresponding to the image.
  • At least two linear sensors 11 are used to scan the target detection object to generate a plurality of strip images, and send a time stamp corresponding to the strip image to the processor 12.
  • the processor 12 is configured to timestamp corresponding to the image of the same feature position of the target detection object acquired by the at least two linear sensors 11 according to a preset algorithm and the interval between the first linear sensor 111 and the second linear sensor 112.
  • the fixed value of the distance is processed to obtain a proportional relationship of the images scanned by the first linear sensor 111 at different times, and the image scanned by the first linear sensor 111 at different times is scaled according to the proportional relationship, and then the adjustment is performed.
  • the subsequent images are combined to obtain a complete image of the target detection object.
  • the proportional relationship of the images scanned by the second linear sensor 112 at different times may be correspondingly obtained, and the image scanned by the second linear sensor 112 at different times may be proportionally adjusted according to the proportional relationship, and then The adjusted images are combined to obtain a complete image of the target detection object.
  • the processor 12 is configured to match the images scanned by the first linear sensor 111 and the second linear sensor 112 to combine the same features of the target detection objects acquired by the first linear sensor 111 and the second linear sensor 112.
  • the images of the locations correspond one-to-one.
  • the processor 12 is configured to use the difference between the time stamps corresponding to the strip images of the same feature position of the target detection object acquired by the at least two linear sensors 11 and the first linear sensor 111 and the second linear sensor 112.
  • the fixed value of the distance between the objects of the target detection object passes through the average speed value of the first linear sensor 111 or the second linear sensor 112 to obtain the width ratio of the strip image obtained by the first linear sensor 111 at different times. Relationship, and synthesizing the strip images obtained by the first linear sensor 111 at different times according to the width proportional relationship to obtain a complete image of the target detection object.
  • the width ratio relationship of the strip images obtained by the second linear sensor 112 at different times may be correspondingly obtained, and the strips obtained by the second linear sensor 112 at different times according to the width proportional relationship may be obtained.
  • the image is synthesized to obtain a complete image of the target detection object.
  • the image acquisition device 10 of any of the above embodiments is disposed on a conveyor belt to detect objects on the conveyor belt.
  • the width of the strip image of the object acquired by the first linear sensor 111 or the second linear sensor 112 in the image acquiring device 10 at different times is inconsistent, for example, when the belt is driven
  • the speed is faster, the object passes through the linear sensor faster, and the strip image of a certain feature position is narrower; when the speed of the belt transmission is slow, the object passes through the linear sensor at a slower speed.
  • the strip image of a certain feature position is wider. If the images acquired by the first linear sensor 111 or the second linear sensor 112 are directly combined, the image distortion and the proportion are uncoordinated, so that the true shape and size of the target object cannot be truly restored.
  • the width ratio relationship of the strip images collected by the first linear sensor 111 or the second linear sensor 112 at different times can be determined, adjusted according to the width ratio relationship, and then the strip images are synthesized. Obtain a complete image of the object, which can truly restore the object and avoid distortion.
  • the image acquiring apparatus of the present embodiment includes at least two linear sensors and a processor; at least two linear sensors are arranged in parallel with each other, and the separation distance is a fixed value;
  • the linear sensor is configured to scan the target detection object, and send a time stamp corresponding to the scanned image and the image to the processor;
  • the processor is configured to use the same algorithm to acquire the same target detection object of the at least two linear sensors.
  • the time stamp corresponding to the image of the feature position and the fixed value are processed to obtain the proportional relationship of the images scanned by the linear sensor at different times, and the images scanned by the linear sensor at different times are synthesized according to the proportional relationship to obtain the target. Detecting the complete image of the object
  • the target detection object is scanned by using at least two linear sensors, and the proportional relationship of the images acquired by the same linear sensor at different times is determined according to a preset algorithm, and the image is processed according to the proportional relationship to generate The final image enables image integration without the aid of an encoder, reducing costs.
  • FIG. 3 is a schematic structural diagram of a second embodiment of at least two linear sensors of the image acquiring apparatus of the present invention.
  • At least two linear sensors of the present embodiment include four linear sensors.
  • the at least two linear sensors include a first linear sensor 301 and a third linear sensor 303 which are disposed in parallel with the opposite sides and have a fixed distance, and the second linear sensors 302 and fourth are arranged in parallel with the opposite sides and the distance is a fixed value.
  • Linear sensor 304 Linear sensor 304.
  • At least two linear sensors of the present embodiment acquire information of the target detection object from two directions to determine the acquired by each linear sensor from a plurality of dimensions The scale adjustment relationship of the image. Thereby, the detection of the target detection object moving in any direction is realized, and a corresponding image is generated.
  • FIG. 4 is a schematic flowchart diagram of an embodiment of an image acquisition method according to the present invention.
  • the image acquisition method of the present embodiment is applied to the image acquisition device of any of the above embodiments.
  • the image acquisition device includes a first linear sensor and a second linear sensor as an example.
  • the image acquisition method of this embodiment includes:
  • the image acquiring device scans the target detection object by using at least two linear sensors to acquire an image, and acquires a timestamp corresponding to the image, wherein at least two linear sensors are disposed in parallel with each other, and the separation distance is a fixed value.
  • the image acquisition device includes at least two linear sensors and a processor, and the linear sensor is coupled to the processor.
  • the linear sensor is coupled to the processor.
  • at least two linear sensors are arranged in parallel with respect to each other, and the separation distance is a fixed value.
  • the image acquisition device includes a first linear sensor and a second linear sensor, and the first linear sensor and the second linear sensor are disposed in parallel with each other, and the separation distance is a fixed value.
  • the target detection object moves perpendicularly with respect to the first linear sensor and the second linear sensor, and the first linear sensor and the second linear sensor scan the target detection object to acquire an image, wherein the same linear sensor scans the target detection object differently
  • the time of the feature position is different.
  • the time when different linear sensors scan to the same feature position of the target detection object is also different.
  • the image acquisition device acquires a time stamp corresponding to the image acquired by each linear sensor.
  • the image acquisition device scans the target detection object by the first linear sensor and the second linear sensor to generate a plurality of strip images and acquires a time stamp corresponding to the strip image.
  • the image acquiring device processes the timestamp and the fixed value corresponding to the image of the same feature position of the target detection object acquired by the at least two linear sensors according to a preset algorithm to obtain the linear sensor at different times.
  • the proportional relationship of the scanned image is a preset algorithm to obtain the linear sensor at different times.
  • the image acquiring device matches the images scanned by the first linear sensor and the second linear sensor to respectively match the images of the same feature position of the target detection object acquired by the first linear sensor and the second linear sensor. .
  • the image acquisition device determines a difference between time stamps corresponding to the strip image of the same feature position of the target detection object acquired by the first linear sensor and the second linear sensor, and between the first linear sensor and the second linear sensor
  • the fixed value of the distance determines the average velocity value of the same feature position of the target detection object through the first linear sensor or the second linear sensor to obtain the width proportional relationship of the strip image obtained by the first linear sensor at different times.
  • the width proportional relationship of the strip images obtained by the second linear sensor at different times may also be obtained.
  • the image acquisition device combines the images acquired by the linear sensors at different times according to a proportional relationship to obtain a complete image of the target detection object.
  • the image acquisition device synthesizes the strip images obtained by the first linear sensor at different times according to the width proportional relationship to obtain a complete image of the target detection object.
  • the image acquisition device synthesizes the strip images obtained by the second linear sensor at different times according to the width proportional relationship to obtain a complete image of the target detection object.
  • the image acquisition device of the present embodiment includes at least two linear sensors and a processor; at least two linear sensors are arranged in parallel with each other, and the separation distance is a fixed value.
  • Image acquisition device through at least two The linear sensor scans the target detection object to acquire an image, and acquires a timestamp corresponding to the image; the timestamp corresponding to the image of the same feature position of the target detection object acquired by the at least two linear sensors according to a preset algorithm and
  • the fixed value is processed to obtain the proportional relationship of the images scanned by the linear sensor at different times, and the images scanned by the linear sensors at different times are synthesized according to the proportional relationship to obtain a complete image of the target detection object.
  • the target detection object is scanned by using at least two linear sensors, and the proportional relationship of the images acquired by the same linear sensor at different times is determined according to a preset algorithm, and the image is processed according to the proportional relationship to generate The final image enables image integration without the aid of an encoder, reducing costs.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Image Input (AREA)
  • Editing Of Facsimile Originals (AREA)

Abstract

La présente invention concerne un dispositif et un procédé d'obtention d'image. Le dispositif d'obtention d'image comprend deux capteurs linéaires ou plus, et un processeur. Les capteurs linéaires sont couplés au processeur. Les bords opposés desdits deux capteurs linéaires ou plus sont disposés en parallèle, et une distance d'espacement est une valeur constante. Les capteurs linéaires sont utilisés pour balayer un objet de détection cible, et envoyer au processeur l'image scannée et l'estampille temporelle correspondant à l'image. Le processeur est utilisé pour, selon un algorithme prédéfini, traiter l'estampille temporelle correspondant à l'image de la même position caractéristique de l'objet de détection cible obtenue par les deux capteurs linéaires ou plus et la valeur constante, de sorte à obtenir une relation proportionnelle d'images balayées par les capteurs linéaires à différents moments, et, d'après la relation proportionnelle, synthétiser les images balayées par les capteurs linéaires à différents moments, de sorte à obtenir une image complète de l'objet de détection cible. Le dispositif d'obtention d'image peut implémenter une intégration d'image sans utiliser un codeur, ce qui réduit les coûts.
PCT/CN2017/119006 2017-12-27 2017-12-27 Dispositif et procédé d'obtention d'image Ceased WO2019127101A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780036108.8A CN109328455B (zh) 2017-12-27 2017-12-27 图像获取装置及图像获取方法
PCT/CN2017/119006 WO2019127101A1 (fr) 2017-12-27 2017-12-27 Dispositif et procédé d'obtention d'image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/119006 WO2019127101A1 (fr) 2017-12-27 2017-12-27 Dispositif et procédé d'obtention d'image

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WO2019127101A1 true WO2019127101A1 (fr) 2019-07-04

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Publication number Priority date Publication date Assignee Title
CN115022481B (zh) * 2022-06-06 2023-08-22 中亿启航数码科技(北京)有限公司 一种图像优化的线性扫描装置
CN114964047B (zh) * 2022-08-01 2022-11-04 长缆电工科技股份有限公司 一种用于电缆敷设状态的激光检测系统及方法

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US8727995B2 (en) * 2010-09-09 2014-05-20 Siemens Medical Solutions Usa, Inc. Reduction of motion artifacts in ultrasound imaging with a flexible ultrasound transducer
CN104769480A (zh) * 2012-10-31 2015-07-08 浜松光子学株式会社 图像取得装置和图像取得装置的聚焦方法
CN106662537A (zh) * 2015-01-29 2017-05-10 株式会社Decsys 光学式外观检查装置以及使用该装置的光学式外观检查系统

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CN102800075B (zh) * 2012-07-16 2016-08-03 宁波江丰生物信息技术有限公司 基于线阵相机拍摄的图像拼接方法和装置
CN103491296B (zh) * 2013-07-30 2016-05-25 宁波迪吉特电子科技发展有限公司 一种高速摄像的实现方法

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US8727995B2 (en) * 2010-09-09 2014-05-20 Siemens Medical Solutions Usa, Inc. Reduction of motion artifacts in ultrasound imaging with a flexible ultrasound transducer
CN104769480A (zh) * 2012-10-31 2015-07-08 浜松光子学株式会社 图像取得装置和图像取得装置的聚焦方法
CN106662537A (zh) * 2015-01-29 2017-05-10 株式会社Decsys 光学式外观检查装置以及使用该装置的光学式外观检查系统

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CN109328455B (zh) 2020-10-16

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