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WO2019119652A1 - Dispositif de détection optique, système de détection et procédé de détection - Google Patents

Dispositif de détection optique, système de détection et procédé de détection Download PDF

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Publication number
WO2019119652A1
WO2019119652A1 PCT/CN2018/079056 CN2018079056W WO2019119652A1 WO 2019119652 A1 WO2019119652 A1 WO 2019119652A1 CN 2018079056 W CN2018079056 W CN 2018079056W WO 2019119652 A1 WO2019119652 A1 WO 2019119652A1
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WO
WIPO (PCT)
Prior art keywords
sensing device
light
optical signal
target
target detection
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/CN2018/079056
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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 CN201880002385.1A priority Critical patent/CN109642820B/zh
Publication of WO2019119652A1 publication Critical patent/WO2019119652A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Definitions

  • the present invention relates to the field of imaging technology, and in particular to a light sensing device, a detection system, and a detection method.
  • Light field imaging technology is a technology that combines information processing technology and optical imaging technology. It acquires the four-dimensional light field distribution of the target object through the imaging system, and then uses the information processing technology to invert the light field. For a point in the traditional three-dimensional space, a pixel on a traditional digital picture can only record the integrated intensity of all the light passing through the point, and the light field picture can record the light in multiple directions passing through the same point, using light. The light field data recorded in the field picture can observe pictures with different viewing angles and different focal lengths. Compared with traditional cameras, light field cameras have many advantages, such as: no occlusion, small amount of calculation, no influence on lighting, 3D information and texture information, and easy subsequent image analysis.
  • the existing light field camera is difficult to obtain accurate light field information of the target object and the calculated depth of field is not accurate, which limits the wide application of the light field camera in the industrial field.
  • the technical problem to be solved by the present invention is to provide a light sensing device, a detecting system and a detecting method, which can accurately calculate the depth of field while acquiring the light field information of the target detecting object.
  • the first technical solution adopted by the present invention is to provide a light sensing device including: a rotation module and a line sensor disposed on the rotation module, and the line sensor is used in The optical signals in different directions of at least one object point in the target detection are acquired and recorded following the rotation of the rotation module.
  • the second technical solution adopted by the present invention is to provide a detection system, which includes:
  • a position sensor a light sensing device, and a processor coupled to the light sensing device;
  • the light sensing device includes a rotation module and a line sensor disposed on the rotation module, and the line sensor is configured to collect and record optical signals in different directions of at least one object point in the target detection while following the rotation of the rotation module;
  • the position sensor is configured to record and store the position coordinates of the target detector and the light sensing device
  • the processor is configured to perform correlation processing according to the position coordinates and the optical signal to obtain the light field information of the target detector.
  • the third technical solution adopted by the present invention is to provide a detection method, which includes:
  • the line sensor collects and records the optical signals in different directions of at least one object point in the target detection, and the position sensor records and stores the position coordinates of the target detection object and the light sensing device, and transmits the optical signal and the position coordinates to the processor;
  • the processor performs correlation processing on the acquired optical signal and position coordinates to obtain light field information of the target detection object.
  • the light sensing device of the present invention comprises a rotation module and a line sensor disposed on the rotation module, and the line sensor is used for collecting and recording when following the rotation of the rotation module An optical signal in a different direction of at least one object point in the target detection.
  • the line signal sensor collects and records the light signals of different directions of at least one object point in the target detection, and records and stores the position coordinates of the target detection object and the light sensing device through the position sensor, thereby acquiring the target detection object light field Accurately calculate the depth of field while the information is being used.
  • FIG. 1 is a schematic structural view of an embodiment of a detection system provided by the present invention.
  • FIG. 2.1 is a schematic diagram of the optical sensor device provided by the present invention collecting an object light signal on a target detection object at a certain time;
  • FIG. 2.2 is a schematic diagram of the optical sensor device provided by the present invention collecting an object spot light signal on a target detection object at another time;
  • FIG. 3 is a top plan view of a light sensing device provided by the present invention.
  • FIG. 4 is a schematic flow chart of a detection method provided by the present invention.
  • the detection system comprises a position sensor, a light sensing device and a processor connected to the light sensing device.
  • the object point refers to a point on the object.
  • the device performs correlation processing according to the acquired optical signal and position coordinates to obtain an optical signal set including optical signal angle information and light intensity information corresponding to different object points, thereby acquiring light field information of the target detection object, and then calculating the depth of field.
  • FIG. 1 is a schematic structural diagram of an embodiment of a detection system according to the present invention.
  • the detection system includes: a transmission module 101, a position sensor 102 connected to the transmission module 101, and a light transmission.
  • the transmitting module 101 is a conveyor belt
  • the conveyor belt is used for transmitting the target detecting object 104
  • the position sensor 102 is a position encoder
  • the position encoder is used for recording and storing the position coordinates of the target detecting object 104 and the light sensing device 103
  • the position coordinate information is transmitted to the processor.
  • the light sensing device 103 includes a rotation module, a line sensor 1032 disposed on the rotation module, and a light shielding plate 1033 fixed to one side of the line sensor 1032.
  • the height of the light shielding plate 1033 is adapted to the optical signal collection angle of the line sensor 1032.
  • the rotating module is a galvanometer, and the galvanometer includes a vibrating lens 1031 and a motor 1035 connected to each other. At least one rotating shaft 1034 is disposed on the vibrating lens 1031.
  • the motor 1035 is configured to rotate the vibrating lens 1031 around the rotating shaft 1034.
  • the target detector 104 is located within the illumination range of the light source 105, and the target detector 104 reflects the light impinging thereon, and the line sensor 1032 receives the light reflected by the object.
  • the line sensor 1032 collects optical signals in different directions of at least one object point in the target object 104, including the angle information and the light intensity information of the optical signal, and transmits the information to the processor.
  • the object point refers to a point on the object.
  • the processor performs correlation processing according to the acquired position coordinates and optical information to obtain light field information of the target object, thereby calculating depth of field and resolution.
  • the target detecting object 104 in order to collect optical signals in different directions of at least one object point in the target detecting object 104, the target detecting object 104 is placed on the transmitting module 101, and the transmitting module 101 is started to transmit the target detecting object 104 without starting.
  • the motor 1035 rotates the optical sensor device 103, and the position encoder is fixedly mounted on the transport module 101, and the target detector 104 is located within the illumination range of the light source 105.
  • the line sensor 1032 collects and records the optical signals in different directions of at least one object point in the target detector 104 during the movement of the target detector 104, including the angle information and the light intensity information of the optical signal, and transmits the collected optical signals to the optical signal. processor.
  • the position encoder records and stores the position coordinates of the target detector 104 and the light sensing device 103 in this process, and transmits the position coordinate information to the processor.
  • the processor performs correlation processing according to the acquired optical signal and the position coordinate information to obtain an optical signal set corresponding to different object points in the target object 104.
  • the optical signal set includes angle information and light intensity information of the optical signals in different directions of the object point.
  • the line sensor 1032 collects and records the optical signals in different directions of at least one object point in the target object 104, and the processor obtains the optical signal set and the light field information of different object points of the target detection object through correlation processing, thereby calculating the depth of field and Resolution.
  • FIG. 2.1 is a schematic diagram of the optical sensor device provided by the present invention collecting an object spot light signal on a target detection object at a certain time.
  • A, B, and C respectively represent three different object points on the target detector 104, and the line connecting point A and the line sensor 1032 represents the object point A collected by the line sensor 1032 at this time.
  • the direction of the optical signal, the line connecting point B and the line sensor 1032 represents the direction of the light signal from the object point B collected by the line sensor 1032 at this time, and the line connecting the point C and the line sensor 1032 represents the line array sensor at this moment.
  • the line sensor 1032 acquires the light intensity information from the A, B, and C optical signals by collecting the optical signals of the object points A, B, and C at this time, and the position encoder simultaneously records and stores the positions of the target detecting object 104 and the light sensing device 103. The coordinates, in turn, obtain the angle information of the optical signals from the object points A, B, and C respectively collected by the light sensing device 103 at this time.
  • FIG. 2.2 is a schematic diagram of the optical sensor device provided by the present invention collecting an object spot light signal on a target object at another time. According to the same method as described above, the light intensity information and the angle information of the light signals from the object points A, B, and C at another time are obtained.
  • the processor performs correlation processing according to the obtained angle information of the object points A, B, and C optical signals and the light intensity information, respectively, and obtains the optical signal set of the object points A, B, and C, respectively, and the optical signal set of the object point A.
  • the two optical signal angle information of the object point A at these two moments and the two light intensity information are included.
  • the optical signal set of the object point B includes two optical signal angle information and two lights of the object point B at the two moments. Strong information, the set of optical signals of object point C includes two optical signal angle information and two light intensity information of object point C at these two moments.
  • the optical signal information of the plurality of times is collected during the optical signal acquisition process, so that the processor obtains the optical signal set including the plurality of angle information and the light intensity information of each object point, and obtains the light field information of the target detecting object 104, thereby calculating Depth of field.
  • the target detector 104 is placed on the transport module 101, the position encoder is fixedly mounted on the transport module 101, the transport module 101 is not activated to transmit the target detector 104, and the starter motor 1035 drives the vibrating lens 1031.
  • the line sensor 1032 located on the vibrating lens 1031 collects and records the optical signals in different directions of at least one object point in the target detecting object 104 and transmits them to the processor, and the line array sensor 1032 collects.
  • the position encoder records and stores the position coordinates of the target detector 104 and the light sensing device 103 and transmits the coordinates to the processor, and the processor performs correlation processing according to the acquired optical signal and the position coordinate information to obtain the target detection object 104.
  • the set of optical signals corresponding to the object point includes the angle information and the light intensity information of the light signals in different directions of the object point.
  • the position sensor rotates, the position coordinates of the light sensor device 103 change, and the position coordinates of the target detector 104 do not change.
  • the line sensor 1032 collects and records the light signals in different directions of at least one object point in the target object 104, and the processor obtains the light signal set and the light field information of different object points of the target object through the correlation process, thereby calculating the depth of field.
  • the target detector 104 is placed on the transport module 101, the position encoder 102 is fixedly mounted on the transport module 101, the transport module 101 is activated to transmit the target detector 104, and the starter motor 1035 drives the vibrating lens 1031.
  • the rotating shaft 1034 rotates, and the line sensor 1032 located on the vibrating lens 1031 collects and records the optical signals in different directions of at least one object point in the target detecting object 104 and transmits them to the processor, and the line array sensor 1032 collects and rotates.
  • the position encoder 102 While recording the optical signal, the position encoder 102 records and stores the position coordinates of the target detector 104 and the light sensing device 103 and transmits them to the processor, and the processor performs correlation processing according to the acquired optical signal and position coordinate information to obtain the target detected object 104.
  • the set of optical signals corresponding to the object point includes the angle information and the light intensity information of the light signals in different directions of the object point.
  • the position sensor rotates, the position coordinates of the light sensor device 103 change, and the position coordinates of the target detector 104 also change.
  • the line sensor 1032 collects and records the light signals in different directions of at least one object point in the target object 104, and the processor obtains the light signal set and the light field information of different object points of the target object through the correlation process, thereby calculating the depth of field.
  • the light sensing device of the present invention includes a rotation module and a line sensor disposed on the rotation module, and the line sensor is configured to collect and record different directions of at least one object point in the target detection while following the rotation of the rotation module.
  • Light signal The line signal sensor collects and records the light signals of different directions of at least one object point in the target detection, and records and stores the position coordinates of the target detection object and the light sensing device through the position sensor, thereby acquiring the target detection object light field Accurately calculate the depth of field while the information is being used.
  • FIG. 3 is a schematic top view of the optical sensing device provided by the present invention.
  • the optical sensing device 103 includes a vibrating lens 1031, a line sensor 1032, a visor 1033, and a motor connected to the vibrating lens 1031. At least one rotating shaft is disposed on the vibrating lens, and the motor is used to drive the vibrating lens 1031. Rotate around the axis of rotation.
  • the line sensor 1032 is configured to collect and record optical signals in different directions of at least one object point in the target object 104.
  • the two visors 1033 are respectively mounted on one side of the line sensor 1032, and the height of the visor 1033 and the line sensor 1032 are The optical signal acquisition angle is adapted.
  • the number of rotating shafts is one, and in other embodiments, a plurality of rotating shafts may be provided.
  • FIG. 4 is a schematic diagram of a specific process of the detection method provided by the present invention. Hereinafter, specific steps of the method will be described in detail.
  • the line sensor collects and records the light signals of different directions of at least one object point in the target detection, and the position sensor records and stores the position coordinates of the target detection object and the light sensing device, and transmits the optical signal and the position coordinate to the processing. Device.
  • the transfer module 101 is activated to transmit the target detector 104, the motor 1035 is not activated to rotate the light sensing device 103, and the line sensor 1032 is in the process of moving the target detector 104.
  • Optical signals of different directions of at least one object point are collected and recorded and transmitted to the processor.
  • the optical signal includes angle information and light intensity information.
  • the position encoder records and stores the position coordinates of the light sensing device 103 and the target detector 104 during the movement of the target detector 104, and transmits the position coordinate information to the processor.
  • the starter motor 1035 rotates the light sensing device 103
  • the transfer module 101 is not activated to transmit the target detector 104
  • the line sensor 1032 collects and records during the rotation following the light sensing device 103.
  • At least one object in the target detector 104 is optically transmitted in different directions and transmitted to the processor.
  • the optical signal includes angle information and light intensity information.
  • the position encoder records and stores the position coordinates of the light sensing device 103 and the target detector 104 during the rotation of the light sensing device 103, and transmits the position coordinate information to the processor.
  • the starter motor 1035 rotates the light sensing device 103 while the transfer module 101 is activated to transmit the target detector 104, and the line sensor 1032 collects and records the target during the rotation following the light sensing device 103.
  • At least one object in the object 104 is optically transmitted in different directions and transmitted to the processor.
  • the optical signal includes angle information and light intensity information.
  • the position encoder records and stores the position coordinates of the light sensing device 103 and the target detector 104 during this process, and transmits the position coordinate information to the processor.
  • S402 The processor performs association processing on the acquired optical signal and position coordinates to obtain light field information of the target detection object.
  • step S401 the line sensor 1032 transmits the collected optical signal and the position coordinate information recorded by the position encoder to the processor respectively, and the processor performs the correlation processing according to the acquired optical signal and the position coordinate information in step S402.
  • the set of optical signals corresponding to the object points, the set of each object point includes the angle information and the light intensity information of the object point light signal, thereby obtaining the light field information of the target object and calculating the depth of field.
  • FIG. 2.1 is a schematic diagram of the optical sensor device provided by the present invention collecting an object spot light signal on a target detection object at a certain time.
  • A, B, and C respectively represent three different object points on the target detector 104, and the line connecting point A and the line sensor 1032 represents the object point A collected by the line sensor 1032 at this time.
  • the direction of the optical signal, the line connecting point B and the line sensor 1032 represents the direction of the light signal from the object point B collected by the line sensor 1032 at this time, and the line connecting the point C and the line sensor 1032 represents the line array sensor at this moment.
  • the line sensor 1032 acquires the light intensity information from the A, B, and C optical signals by collecting the optical signals of the object points A, B, and C at this time, and the position encoder simultaneously records and stores the positions of the target detecting object 104 and the light sensing device 103. The coordinates, in turn, obtain the angle information of the optical signals from the object points A, B, and C respectively collected by the light sensing device 103 at this time.
  • FIG. 2.2 is a schematic diagram of the optical sensor device provided by the present invention collecting an object spot light signal on a target object at another time. According to the same method as described above, the light intensity information and the angle information of the light signals from the object points A, B, and C at another time are obtained.
  • the processor performs correlation processing according to the obtained angle information of the object points A, B, and C optical signals and the light intensity information, respectively, and obtains the optical signal set of the object points A, B, and C, respectively, and the optical signal set of the object point A.
  • the two optical signal angle information of the object point A at these two moments and the two light intensity information are included.
  • the optical signal set of the object point B includes two optical signal angle information and two lights of the object point B at the two moments. Strong information, the set of optical signals of object point C includes two optical signal angle information and two light intensity information of object point C at these two moments.
  • the optical signal information of the plurality of times is collected during the optical signal acquisition process, so that the processor obtains the optical signal set including the plurality of angle information and the light intensity information of each object point, and obtains the light field information of the target detecting object 104, thereby calculating Depth of field.
  • the light sensing device of the present invention comprises a rotation module and a line sensor disposed on the rotation module, and the line sensor is used for collecting and recording when following the rotation of the rotation module An optical signal in a different direction of at least one object point in the target detection.
  • the line signal sensor collects and records the light signals of different directions of at least one object point in the target detection, and records and stores the position coordinates of the target detection object and the light sensing device through the position sensor, thereby acquiring the target detection object light field Accurately calculate the depth of field while the information is being used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un dispositif de détection optique, un système de détection et un procédé de détection. Le dispositif de détection optique (103) comprend un module de rotation et un capteur linéaire (1032) agencé sur le module de rotation ; et le capteur linéaire (1032) est utilisé pour collecter et enregistrer, lors de la rotation avec le module de rotation, des signaux optiques, dans des directions différentes, d'au moins un point d'objet dans un objet de détection cible (104). Les signaux optiques, dans des directions différentes, d'au moins un point d'objet dans un objet de détection cible (104) sont collectés et enregistrés par le capteur linéaire (1032) ; des coordonnées de position de l'objet de détection cible (104) et du dispositif de détection optique (103) sont enregistrées et stockées par un capteur de position (102) ; et, ensuite, un processeur obtient des informations de champ optique de l'objet de détection cible (104) en fonction des signaux optiques acquis et des coordonnées de position et calcule une profondeur de champ.
PCT/CN2018/079056 2017-12-22 2018-03-14 Dispositif de détection optique, système de détection et procédé de détection Ceased WO2019119652A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880002385.1A CN109642820B (zh) 2017-12-22 2018-03-14 光传感装置、检测系统及检测方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2017/118123 2017-12-22
CN2017118123 2017-12-22

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WO2019119652A1 true WO2019119652A1 (fr) 2019-06-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080218742A1 (en) * 2007-03-08 2008-09-11 Kabushiki Kaisha Kobe Seiko Sho Apparatus and method for detecting tire shape
CN102937418A (zh) * 2012-10-18 2013-02-20 北京航空航天大学 一种扫描式物体表面三维形貌测量方法及装置
CN104359871A (zh) * 2014-10-16 2015-02-18 爱彼思（苏州）自动化科技有限公司 一种高精度非接触式光泽度检测的方法及装置
CN104460220A (zh) * 2014-12-31 2015-03-25 苏州江奥光电科技有限公司 一种利用单个摄像机实现双目视觉三维成像的装置
CN105699382A (zh) * 2016-04-20 2016-06-22 姜太平 一种包装膜纹理采集装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080218742A1 (en) * 2007-03-08 2008-09-11 Kabushiki Kaisha Kobe Seiko Sho Apparatus and method for detecting tire shape
CN102937418A (zh) * 2012-10-18 2013-02-20 北京航空航天大学 一种扫描式物体表面三维形貌测量方法及装置
CN104359871A (zh) * 2014-10-16 2015-02-18 爱彼思（苏州）自动化科技有限公司 一种高精度非接触式光泽度检测的方法及装置
CN104460220A (zh) * 2014-12-31 2015-03-25 苏州江奥光电科技有限公司 一种利用单个摄像机实现双目视觉三维成像的装置
CN105699382A (zh) * 2016-04-20 2016-06-22 姜太平 一种包装膜纹理采集装置

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