WO2023238664A1 - Système de mesure de spectre, procédé de fonctionnement d'un système de mesure de spectre et dispositif d'éclairage - Google Patents

Système de mesure de spectre, procédé de fonctionnement d'un système de mesure de spectre et dispositif d'éclairage Download PDF

Info

Publication number
WO2023238664A1
WO2023238664A1 PCT/JP2023/019270 JP2023019270W WO2023238664A1 WO 2023238664 A1 WO2023238664 A1 WO 2023238664A1 JP 2023019270 W JP2023019270 W JP 2023019270W WO 2023238664 A1 WO2023238664 A1 WO 2023238664A1
Authority
WO
WIPO (PCT)
Prior art keywords
illumination
point light
light sources
image
measurement system
Prior art date
Application number
PCT/JP2023/019270
Other languages
English (en)
Japanese (ja)
Inventor
沱 庄
Original Assignee
ソニーグループ株式会社
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 ソニーグループ株式会社 filed Critical ソニーグループ株式会社
Publication of WO2023238664A1 publication Critical patent/WO2023238664A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
    • G01J3/36—Investigating two or more bands of a spectrum by separate detectors

Definitions

  • the present disclosure relates to a spectroscopic measurement system, an operating method of the spectroscopic measurement system, and an illumination device, and in particular, a spectroscopic measurement system and a spectroscopic measurement system that can realize spectroscopic measurement with one imaging using a general camera.
  • the present invention relates to a method of operating a lighting device, and a lighting device.
  • Light infrared radiation, visible light, ultraviolet
  • wavelengths vibration periods
  • Objects that emit or reflect light have unique amounts of each wavelength component depending on the composition of the object (elements, molecular structure, etc.), so each wavelength component of light must be separated and analyzed. This allows us to determine the type and state of the object being observed.
  • the amount of each wavelength depending on the composition of an object is called a wavelength spectrum, and measuring this wavelength spectrum is called spectroscopic measurement.
  • the type and state of the object to be measured can be measured using the wavelength spectrum measured by this spectroscopic measurement.
  • a method of capturing images by realizing spectroscopy on the camera side there is a method of capturing images by realizing spectroscopy on the camera side, and more specifically, a method in which an optical element such as a diffraction element or a prism is inserted into the camera's optical system. , is a method of realizing spectroscopy inside a camera and capturing the spectroscopic image as a spectroscopic image.
  • the illumination side realizes spectroscopy and irradiates the measurement target, images the measurement target irradiated with the spectroscopic light using a general camera, and obtains a spectral image from the captured image. It's a method. More specifically, by irradiating the object with illumination with different wavelength characteristics and capturing an image of the object, a spectral image is obtained by observing the intensity of reflected light from the object in the captured image. This is the way to do it.
  • Patent Document 1 a technology has been proposed that realizes spectroscopy on the illumination side so that a general camera can be used.
  • Patent Document 1 it is necessary to repeat the process of illuminating and imaging while switching the wavelength of the light emitted on the illumination side, and while it is possible to easily perform spectroscopic measurements using a general camera, Measurement takes time and effort.
  • the present disclosure has been made in view of this situation, and in particular, makes it possible to realize spectroscopic measurement with a single image capture using a general camera.
  • a spectroscopic measurement system includes a plurality of point light sources arranged in an array that emit light with different wavelength characteristics, and a boundary between the adjacent point light sources is located at a boundary between the adjacent point light sources.
  • a lighting section in which a plurality of lighting cells each having a grid that prevents intermingling of light is arranged in an array, and irradiating an object with illumination, and the object irradiated with illumination from the lighting section.
  • the present invention is a spectroscopic measurement system including an imaging section that captures an image of an object, and a spectral image generation section that generates a spectral image of the object based on the image captured by the imaging section.
  • a method of operating a spectroscopic measurement system includes a plurality of point light sources arranged in an array that emit light with different wavelength characteristics, and a boundary between adjacent point light sources is
  • a method for operating a spectroscopic measurement system comprising: an illumination section in which a plurality of illumination cells having grids that prevent light from mixing between the point light sources are arranged in an array; an imaging section; and a spectral image generation section.
  • the illumination unit irradiates the object with illumination
  • the imaging unit images the object irradiated with the illumination from the illumination unit as an image
  • the spectral image generation unit includes:
  • the method of operating a spectroscopic measurement system includes the step of generating a spectroscopic image of the object based on the image captured by the imaging unit.
  • the light source includes a plurality of point light sources arranged in an array that emit light with different wavelength characteristics, and the light source between the adjacent point light sources is arranged at a boundary between the adjacent point light sources.
  • the illumination section has a plurality of illumination cells arranged in an array, each having a grid that prevents them from intersecting.
  • the illumination unit irradiates the object with illumination, captures an image of the illuminated object, and then captures the image. A spectral image of the object is generated based on the captured image.
  • the illumination device includes a plurality of point light sources arranged in an array that emit light with different wavelength characteristics, and a boundary between the adjacent point light sources is provided at a boundary between the adjacent point light sources.
  • This is a lighting device in which a plurality of lighting cells each having a grid that prevents the lights from mixing are arranged in an array to irradiate an object with light.
  • the light source includes a plurality of point light sources arranged in an array that emit light with wavelength characteristics, and the light source between the adjacent point light sources is arranged at a boundary between the adjacent point light sources.
  • FIG. 1 is a diagram illustrating a configuration example of a spectroscopic measurement system of the present disclosure. It is a figure explaining a lighting device. It is a figure explaining the wavelength characteristic of the point light source of the lighting cell which comprises a lighting device. It is a figure explaining the wavelength characteristic of the point light source of the lighting cell which comprises a lighting device.
  • FIG. 6 is a diagram illustrating an example in which the light emitted from each point light source of the illumination cell is parallel light.
  • FIG. 6 is a diagram illustrating an example in which light emitted from each point light source of a lighting cell has spreading directionality.
  • FIG. 1 is a diagram illustrating a configuration example of a spectroscopic measurement system of the present disclosure. It is a figure explaining a lighting device. It is a figure explaining the wavelength characteristic of the point light source of the lighting cell which comprises a lighting device.
  • FIG. 6 is a diagram illustrating an example in which the light emitted from each point light source of the illumination cell is parallel light.
  • FIG. 2 is a diagram illustrating an image of an object when it is irradiated with general illumination and an image of an object when it is irradiated with spectroscopic measurement light. It is a figure explaining a spectral image set.
  • FIG. 2 is a diagram illustrating a configuration example of an information processing device. It is a flowchart explaining spectroscopic measurement processing (part 1).
  • FIG. 2 is a diagram illustrating a configuration example of an illumination cell in which the wavelength characteristics of a point light source are set continuously and randomly in the wavelength direction.
  • FIG. 3 is a diagram illustrating wavelength characteristics of a point light source that is set continuously and randomly in the wavelength direction. It is a flowchart explaining spectroscopic measurement processing (part 2).
  • the spectroscopic measurement system 11 in FIG. 1 includes an illumination device 31 that irradiates an object 30 to be measured with illumination light for spectrometry, and a camera that images the object 30 illuminated with the illumination for spectrometry. 32, and an information processing device 33 that generates a spectral image set through signal processing based on images captured by the camera 32.
  • the lighting device 31 includes, for example, lighting cells 41 arranged in an array as shown in FIG. Each of 41a-1 to 41a-9 emits light in a set wavelength band, and irradiates the object 30 with it.
  • spectroscopic measurement light the irradiation light emitted by the illumination device 31 for realizing spectroscopic measurement
  • the detailed configuration of the lighting device 31 will be described later with reference to FIGS. 2 to 6.
  • the camera 32 is an imaging device equipped with a general condensing lens and an image sensor, and captures an image of the object 30 irradiated with the spectroscopic measurement light emitted from the illumination device 31, and converts information of the captured image into information. It is output to the processing device 33.
  • a connection method may be used as long as image information can be supplied from the camera 32 to the information processing device 33. .
  • a configuration may be adopted in which the camera 32 and the information processing device 33 are connected via wireless communication or the like, and image information is supplied from the camera 32 to the information processing device 33.
  • the camera 32 may store information on captured images in a storage medium, and may supply the information to the information processing device 33 via the storage medium.
  • the information processing device 33 generates a spectral image by extracting each wavelength band set for each point light source 41a of the illumination cell 41 on the image based on the image supplied from the camera 32, and extracts all the wavelength bands. spectral images are combined and output as a spectral image set.
  • the illumination cells 41 constituting the illumination device 31 include, for example, a total of nine rectangular point light sources 41a-1 to 41a-9, 3 ⁇ 3, arranged in an array at equal intervals. It is said that the configuration is as follows.
  • point light sources 41a-1 to 41a-9 point light sources 41a
  • point light sources 41a point light sources 41a
  • the illumination cell 41 in FIG. 2 shows an example in which the point light sources 41a are arranged in 3 ⁇ 3 pieces in the horizontal and vertical directions, this is only an example, and in one illumination cell 41,
  • the number of point light sources 41a arranged in the horizontal and vertical directions may be any other number, and may not be arranged in an array.
  • the boundary between adjacent point light sources 41a is separated by, for example, a black grid 41b so that the optical paths of the light emitted by each point light source 41a do not intertwine.
  • the shapes of cross sections S11-1 to S11-9 of the light emitted from each of the point light sources 41a-1 to 41a-9 on the plane S1 at a predetermined distance from the illumination cell 41 are as follows:
  • the light emitted from the point light sources 41a-1 to 41a-9 may be parallel light so as to be the same as the point light sources 41a-1 to 41a-9.
  • the light emitted from the point light sources 41a-1 to 41a-9 does not have to be parallel light.
  • the light may be directional light such as a light source of a projector.
  • the grid 41b also functions as a mark for specifying the range (position) of each illumination cell 41 on the image captured by the camera 32. For this reason, it is desirable that the grid 41b has a thickness that can be confirmed on the captured image. Further, a structure other than the grid 41b may be provided as long as it can function as a mark for specifying the range (position) of the illumination cell 41. For example, a structure capable of specifying the range of the illumination cell 41 may be provided. Instead of the grid 41b, marks, patterns, etc. that allow the positions of the corners and boundaries of the illumination cells 41 to be specified on the image may be added.
  • the camera 32 is equipped with a general condensing lens and an image sensor, and captures an image of an object irradiated with light emitted from each of the lighting cells 41 of the lighting device 31, and converts information of the captured image into information. It is output to the processing device 33.
  • the image captured by the camera 32 is different from the image captured under general uniform illumination in an environment where light emitted from the illumination device 31 is irradiated. This is an image in which light with different wavelength characteristics is irradiated on a unit basis.
  • FIG. 7 shows an image P1 of the object 30 captured by the camera 32 when the image is captured under general uniform illumination, and the right part of FIG. An image P2 is shown in which the target object 30 is captured in a state where it is illuminated.
  • the enlarged image PZ1 shows that under general illumination, an image with a color scheme that is visible to the human eye is captured by being illuminated with white light that is a mixture of uniform light of various wavelengths. has been done.
  • the light having the respective wavelength characteristics of the point light sources 41a-1 to 41a-9 constituting the illumination cell 41 of the illumination device 31 is irradiated in a rectangular shape without mixing. It is shown that an image is being captured.
  • the information processing device 33 analyzes the image captured by the camera 32 by signal processing, and determines the wavelength characteristics for each of the wavelength characteristics set for each of the point light sources 41a-1 to 41a-9 constituting the illumination cell 41. By extracting the area irradiated with light, a spectral image of each wavelength characteristic is generated, and the spectral images of all wavelength characteristics are collectively output as a spectral image set.
  • the information processing device 33 extracts spectral images PA1 to PA34 for each wavelength characteristic, and combines them to form a spectral image set. Configure and output.
  • FIG. 8 an example is shown in which a point light source 41a corresponding to 34 types of wavelength characteristics (34 types of wavelength characteristics where the wavelength is set from 450 nm to 780 nm at 10 nm intervals) orthogonal to the illumination cell 41 is set.
  • a point light source 41a having nine types of wavelength characteristics as shown in FIGS. 3 and 4 is set, nine spectral images corresponding to each of the nine types of wavelength characteristics are extracted. It turns out.
  • the information processing device 33 is, for example, a personal computer, a server on a network, a cloud server, etc., and acquires an image captured by the camera 32 via the network or via the removable storage medium 107, and performs spectroscopic analysis. Generate an image.
  • the information processing device 33 is composed of a control section 101, an input section 102, an output section 103, a storage section 104, a communication section 105, a drive 106, and a removable storage medium 107. It is connected to the computer via a computer and can send and receive data and programs.
  • the control unit 101 is composed of a processor and a memory, and controls the entire operation of the information processing device 33. Further, the control section 101 includes a signal processing section 111.
  • the signal processing unit 111 performs signal processing on the information of the image captured by the camera 32 to generate a spectral image set.
  • the signal processing unit 111 extracts pixel signals for each wavelength characteristic set to the point light source 41a that constitutes the illumination cell 41 of the illumination device 31 for each pixel with respect to image information, and processes the image. As a result, spectral images corresponding to wavelength characteristics are generated, and these are collectively output as a spectral image set.
  • the input unit 102 is composed of input devices such as a keyboard, a mouse, and a touch panel through which the user of the information processing device 33 inputs operation commands, and supplies various input signals to the control unit 101.
  • the output unit 103 is controlled by the control unit 101 and includes a display unit and an audio output unit.
  • the output unit 103 outputs and displays images of the operation screen and processing results on a display unit including a display device such as an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence). Furthermore, the output unit 103 controls an audio output unit including an audio output device to reproduce various voices, music, sound effects, and the like.
  • the storage unit 104 is composed of an HDD (Hard Disk Drive), SSD (Solid State Drive), or semiconductor memory, and is controlled by the control unit 101 to write or read various data and programs including content data.
  • HDD Hard Disk Drive
  • SSD Solid State Drive
  • semiconductor memory volatile and erasable programmable read-only memory
  • the communication unit 105 is controlled by the control unit 101 and realizes wired or wireless communication such as LAN (Local Area Network) and Bluetooth (registered trademark), and as necessary via a network (not shown). , and transmits and receives various data and programs to and from various devices including the camera 32. That is, the communication unit 105 receives image information when it is transmitted from the camera 32.
  • LAN Local Area Network
  • Bluetooth registered trademark
  • the drive 106 includes magnetic disks (including flexible disks), optical disks (including CD-ROMs (Compact Disc-Read Only Memory), DVDs (Digital Versatile Discs)), magneto-optical disks (including MDs (Mini Discs)), Alternatively, data is read from and written to a removable storage medium 107 such as a semiconductor memory.
  • a removable storage medium 107 such as a semiconductor memory.
  • step S31 the illumination device 31 irradiates the target object 30 with spectroscopic measurement light by causing each point light source 41a of the illumination cell 41 to emit light.
  • step S32 the camera 32 captures an image including the object 30 irradiated with the spectroscopic measurement light within its angle of view, and outputs information on the captured image to the information processing device 33.
  • the information on the image captured by the camera 32 may be supplied to the information processing device 33 via the network, or the camera 32 may store it in the removable storage medium 107 and the information may be stored in the removable storage medium 107. Alternatively, the information may be supplied to the information processing device 33 via a computer.
  • step S33 the signal processing unit 111 in the control unit 101 of the information processing device 33 specifies the range (position) of the illumination cell 41 in the image based on the grid 41b, and also specifies the range (position) of the illumination cell 41 based on the point light source 41a of the illumination cell 41. Pixel signals are extracted for each set wavelength characteristic (region).
  • step S34 the signal processing unit 111 generates a spectral image for each wavelength characteristic based on the pixel signal for each set wavelength characteristic of the extracted point light source 41a.
  • step S35 the signal processing unit 111 collects the spectral images for each wavelength characteristic and outputs them as a spectral image set.
  • the wavelength characteristics of the light emitted by each of the point light sources 41a are configured to change continuously and randomly in the wavelength direction, and a spectral image set with an arbitrary number of wavelength characteristics is obtained by signal processing. Good too.
  • FIG. 11 shows an example of the configuration of an illumination cell 41' in which the wavelength characteristics of the light emitted from the point light source 41a of FIGS. 3 and 4 are continuously and randomly changed in the wavelength direction.
  • the signal processing unit 111 When the illumination device 31 is configured by arranging the illumination cells 41' in an array as shown in FIGS. 11 and 12, the signal processing unit 111 generates a spectral image set using the following determinant. Calculate.
  • n be the number of bands, which is the number of spectral images.
  • Sn is a noise characteristic of an image sensor that captures an image in the camera 32.
  • matrix C is a matrix set based on the wavelength characteristics of point light source 41'a.
  • the wavelength spectrum f can be calculated using the following equation (3) using a pseudo-inverse matrix of the matrix C set based on the wavelength characteristics of the point light source 41'a, for example, by modifying the equation (1). It can be expressed as
  • the signal processing unit 111 calculates the wavelength spectrum f of the pixel corresponding to each point light source 41a' by calculating the above-mentioned equation (3), and generates a spectral image set.
  • the signal processing unit 111 may calculate the wavelength spectrum f using an optimization calculation such as the following equation (4), for example. desirable.
  • R is an appropriate regularization term and ⁇ is a weighting factor.
  • the wavelength characteristics of the point light source 41a of the illumination cell 41 which was explained with reference to FIGS. 3 and 4, they are approximately orthogonal to each other, so all values are 0 except for a certain interval, and the matrix C expressing the spectral characteristics is 0. Most of them become 0, and at the same time as the matrix C falls in rank, the condition number becomes significantly higher than that of the illumination cell 41', so there is a possibility that the accuracy of calculation by Equation (3) or Equation (4) will decrease.
  • the number of measurable bands is smaller compared to the illumination cell 41', but on the other hand, calculations such as equation (3) or (4) are not required, so the signal processing unit It becomes possible to reduce the processing load in 111 and to realize faster processing.
  • step S53 the signal processing unit 111 in the control unit 101 of the information processing device 33 extracts pixel signals corresponding to each of the point light sources 41'a of the illumination cell 41' in the image.
  • step S54 the signal processing unit 111 uses the equation (3 ) or by calculating equation (4), a spectral image with the set number of bands n is generated.
  • step S55 the signal processing unit 111 collects the spectral images of the set number of bands n obtained by calculation and outputs them as a spectral image set.
  • each spectral image forming the spectral image set has a size that is 1/9 of the captured image size.
  • each spectral image needs to be compressed to about 1/100 of the captured image size.
  • the signal processing unit 111 performs calculation using equation (3) or equation (4) using an illumination cell 41' consisting of a point light source 41'a whose wavelength characteristics are set continuously and randomly in the wavelength direction.
  • Example of execution using software can be executed by hardware, but can also be executed by software.
  • the programs that make up the software can execute various functions by using a computer built into dedicated hardware or by installing various programs. It is installed from a recording medium onto a computer that can be used, for example, a general-purpose computer.
  • the control unit 101 of the information processing device 33 in FIG. 9 is, for example, a CPU, and uses a program stored in a ROM (not shown) or a removable storage medium 107 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory.
  • the program is read out and installed in the storage unit 104, and various processes are executed according to the program loaded from the storage unit 104 into a RAM (not shown).
  • the RAM also appropriately stores data necessary for the control unit 101 to execute various processes.
  • control unit 101 loads, for example, a program stored in the storage unit 104 into a RAM (not shown) via the bus 108 and executes the program.
  • a program stored in the storage unit 104 into a RAM (not shown) via the bus 108 and executes the program.
  • the series of processes described above are performed.
  • the program executed by the control unit 101 can be provided by being recorded on a removable storage medium 107, such as a package medium, for example. Additionally, programs may be provided via wired or wireless transmission media, such as local area networks, the Internet, and digital satellite broadcasts.
  • the program can be installed in the storage unit 104 by attaching the removable storage medium 107 to the drive 106. Further, the program can be received by the communication unit 105 via a wired or wireless transmission medium and installed in the storage unit 104. Other programs can be installed in advance in a ROM or storage unit 104 (not shown).
  • the program executed by the information processing device 33 may be a program in which processing is performed in chronological order according to the order described in this specification, in parallel, or as necessary when called.
  • the program may be a program that performs processing at specific timings.
  • a system refers to a collection of multiple components (devices, modules (components), etc.), regardless of whether all the components are located in the same casing. Therefore, multiple devices housed in separate casings and connected via a network, and a single device with multiple modules housed in one casing are both systems. .
  • the present disclosure can take a cloud computing configuration in which one function is shared and jointly processed by multiple devices via a network.
  • each step described in the above flowchart can be executed by one device or can be shared and executed by multiple devices.
  • one step includes multiple processes
  • the multiple processes included in that one step can be executed by one device or can be shared and executed by multiple devices.
  • ⁇ 1> Consisting of a plurality of point light sources that emit light with different wavelength characteristics and arranged in an array, so that the light between the adjacent point light sources does not mix at the boundary between the adjacent point light sources.
  • an illumination unit in which a plurality of illumination cells each having a grid are arranged in an array and irradiate the object with illumination; an imaging unit that captures an image of the object irradiated with illumination from the illumination unit; and a spectral image generation unit that generates a spectral image of the object based on the image captured by the imaging unit.
  • a spectroscopic measurement system equipped with and.
  • the spectral image generation unit specifies a range of the illumination cells based on the grid in the image, and generates a spectral image of the object based on the specified illumination cells.
  • ⁇ 1 The spectroscopic measurement system described in >.
  • ⁇ 3> The spectroscopic measurement system according to ⁇ 1> or ⁇ 2>, wherein the wavelength characteristics of the lights emitted by the plurality of point light sources in the same illumination cell are orthogonal to each other.
  • the spectral image generation unit extracts pixel signals in the same wavelength range set for the point light source in the image captured by the imaging unit, thereby generating a spectral image of the object for each wavelength range.
  • the spectroscopic measurement system according to ⁇ 3> that generates an image.
  • ⁇ 5> The spectroscopic measurement system according to ⁇ 1> or ⁇ 2>, wherein the wavelength characteristics of the light emitted by the plurality of point light sources in the same illumination cell change continuously and randomly in the wavelength direction.
  • the spectral image generation unit extracts pixel signals having the same wavelength characteristics set for the point light source in the image captured by the imaging unit, and extracts pixel signals having the same wavelength characteristics set for the point light source, and
  • the spectroscopic measurement system according to ⁇ 5> wherein a spectral image of the object for each wavelength range is generated by solving a determinant using a matrix set according to wavelength characteristics of light emitted by the point light source.
  • the spectral image generation unit solves a determinant using a pseudo-inverse matrix of a matrix that is set according to wavelength characteristics of light emitted by the plurality of point light sources in the same illumination cell.
  • the spectroscopic measurement system according to ⁇ 6> which generates a spectral image of the object for each wavelength range.
  • the spectral image generation unit generates a wavelength range by optimization calculation of a determinant using a matrix set according to wavelength characteristics of light emitted by the plurality of point light sources in the same illumination cell.
  • the spectroscopic measurement system according to ⁇ 6> wherein the spectroscopic measurement system generates a spectroscopic image of the target object at each time.
  • ⁇ 9> Consisting of a plurality of point light sources that emit light with different wavelength characteristics and arranged in an array, so that the light between the adjacent point light sources does not mix at the boundary between the adjacent point light sources.
  • a lighting section in which a plurality of lighting cells each having a grid are arranged in an array; an imaging unit; 1.
  • a method of operating a spectroscopic measurement system comprising a spectral image generation section, The illumination unit irradiates the target object with illumination, The imaging unit captures an image of the object illuminated with illumination from the illumination unit, The spectroscopic image generation unit generates a spectroscopic image of the object based on the image captured by the imaging unit.
  • ⁇ 10> Consisting of a plurality of point light sources that emit light with different wavelength characteristics and arranged in an array, so that the light between the adjacent point light sources does not mix at the boundary between the adjacent point light sources.
  • the wavelength characteristics of the light emitted by the plurality of point light sources in the same lighting cell are orthogonal to each other.
  • ⁇ 12> The lighting device according to ⁇ 10>, wherein the wavelength characteristics of the light emitted by the plurality of point light sources in the same lighting cell continuously and randomly change in the wavelength direction.
  • 11 Spectroscopic measurement system 30 Target, 31 Illumination device, 32 Mask, 33 Information processing device, 41, 41' Illumination cell, 41a, 41a-1 to 41a-9, 41'a, 41'a-1 to 41' a-9 point light source, 41b grid, 111 signal processing section

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

La présente invention concerne un système de mesure de spectre avec lequel il est possible de réaliser une mesure de spectre à l'aide d'une seule image obtenue au moyen d'une caméra classique, un procédé de fonctionnement d'un système de mesure de spectre, et un dispositif d'éclairage. Dans un état dans lequel un objet est irradié avec un éclairage par un dispositif d'éclairage, dans lequel sont agencées une pluralité de cellules d'éclairage comprenant une pluralité de sources lumineuses ponctuelles émettant une lumière présentant différentes caractéristiques de longueur d'onde, l'objet qui est irradié avec un éclairage provenant du dispositif d'éclairage est imagé au moyen d'une caméra classique, et une image spectrale de l'objet est générée sur la base de l'image capturée. La présente invention peut être appliquée à des systèmes de mesure de spectre.
PCT/JP2023/019270 2022-06-09 2023-05-24 Système de mesure de spectre, procédé de fonctionnement d'un système de mesure de spectre et dispositif d'éclairage WO2023238664A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022093457 2022-06-09
JP2022-093457 2022-06-09

Publications (1)

Publication Number Publication Date
WO2023238664A1 true WO2023238664A1 (fr) 2023-12-14

Family

ID=89118231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/019270 WO2023238664A1 (fr) 2022-06-09 2023-05-24 Système de mesure de spectre, procédé de fonctionnement d'un système de mesure de spectre et dispositif d'éclairage

Country Status (1)

Country Link
WO (1) WO2023238664A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013108788A (ja) * 2011-11-18 2013-06-06 Tokyo Institute Of Technology マルチスペクトル画像情報取得装置及びマルチスペクトル画像情報取得方法
WO2018110574A1 (fr) * 2016-12-13 2018-06-21 ソニーセミコンダクタソリューションズ株式会社 Dispositif de traitement d'image, procédé de traitement d'image, programme et dispositif électronique
CN111562004A (zh) * 2020-04-23 2020-08-21 中国科学院上海技术物理研究所 一种无分光系统的量子点光源芯片光谱仪及光谱重构方法
JP2021533332A (ja) * 2018-08-08 2021-12-02 京東方科技集團股▲ふん▼有限公司Boe Technology Group Co., Ltd. 分光器及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013108788A (ja) * 2011-11-18 2013-06-06 Tokyo Institute Of Technology マルチスペクトル画像情報取得装置及びマルチスペクトル画像情報取得方法
WO2018110574A1 (fr) * 2016-12-13 2018-06-21 ソニーセミコンダクタソリューションズ株式会社 Dispositif de traitement d'image, procédé de traitement d'image, programme et dispositif électronique
JP2021533332A (ja) * 2018-08-08 2021-12-02 京東方科技集團股▲ふん▼有限公司Boe Technology Group Co., Ltd. 分光器及びその製造方法
CN111562004A (zh) * 2020-04-23 2020-08-21 中国科学院上海技术物理研究所 一种无分光系统的量子点光源芯片光谱仪及光谱重构方法

Similar Documents

Publication Publication Date Title
JP6364777B2 (ja) 画像データ取得システム及び画像データ取得方法
JP6490337B2 (ja) 物体の最大解像度カラー撮像
JP7097971B2 (ja) 計量ターゲット情報コンテンツの増強
WO2015102057A1 (fr) Procédé de traitement d'images, système de traitement d'images, et programme
JP2011237562A5 (fr)
US20110304719A1 (en) Image processing apparatus, image processing method, program, and electronic apparatus
JP2014509435A (ja) 照明制御システム
WO2023238664A1 (fr) Système de mesure de spectre, procédé de fonctionnement d'un système de mesure de spectre et dispositif d'éclairage
US20240119645A1 (en) Signal processing apparatus and signal processing method
WO2016084310A1 (fr) Dispositif d'acquisition d'image, système de formation d'image et procédé de formation d'image
US11971299B2 (en) Hyperspectral image sensor and operating method thereof
JP5930188B2 (ja) 画像読取装置および画像読取プログラム
KR20200011727A (ko) 초분광 영상의 분광 밴드 선택 방법 및 이를 이용하는 분광 밴드 설정 장치
JP6471942B2 (ja) 画像処理装置、画像処理方法及び記録媒体
JPH11230823A (ja) 測光装置
CN111512127B (zh) 确定光谱信息的设备和方法
KR102171773B1 (ko) 검사 영역 결정 방법 및 이를 이용하는 외관 검사 장치
JP2009182845A (ja) 画像処理装置および画像処理方法
JP6649439B2 (ja) 照明光源の調整方法
Muschaweck What's in a ray set: moving towards a unified ray set format
CN115167798B (zh) 量子点光学模拟方法、装置、系统及计算机可读存储介质
WO2023176492A1 (fr) Système de capture d'image
JP2009181449A (ja) 画像処理装置および画像処理方法
JP5625285B2 (ja) 照明装置
WO2023210313A1 (fr) Procédé de mesure, système de mesure et procédé de traitement d'informations

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23819647

Country of ref document: EP

Kind code of ref document: A1