WO2023089956A1 - 画像処理装置と画像処理方法およびプログラム - Google Patents
画像処理装置と画像処理方法およびプログラム Download PDFInfo
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Definitions
- This technology relates to image processing devices, image processing methods, and programs, and makes it possible to easily obtain high-frequency images.
- image information is filtered using, for example, a Sobel filter.
- detection of a straight line by Hough transform and detection of a peak of intensity of a gradient related to brightness on an image as an edge are performed.
- an object of the present technology is to provide an image processing method and a program for an image processing device capable of acquiring a high-frequency image at high speed with low computation cost.
- a first aspect of this technology is A first polarized image based on the first polarized light generated from the incident light and subjected to the optical low-pass filter processing, and a second polarized light generated from the incident light and not subjected to the optical low-pass filter processing.
- the image processing apparatus includes a high-frequency image generation unit that generates a high-frequency image using a two-polarization image.
- the polarization optical section separates the incident light into the first polarized light and the second polarized light in the polarization separation section, and performs optical low-pass filtering on the first polarized light in the optical filter section. Also, the first polarized light subjected to the optical low-pass filter processing and the second polarized light not subjected to the optical low-pass filter processing are combined in the polarized light combiner to generate combined light. Further, the polarization optical section may have a depolarization element that depolarizes incident light, and optical low-pass filter processing is performed by the depolarization element that depolarizes polarized light incident on the optical filter section and the optical filter section. and a polarizing filter for extracting the first polarized light from the unpolarized light.
- the polarized image acquisition unit has first polarized pixels that generate pixel information of the first polarized image based on the combined light and second polarized pixels that generate pixel information of the second polarized image based on the combined light.
- the angle difference between the polarization directions of the first polarization pixel and the second polarization pixel is 90 degrees.
- the second polarization pixels are provided equal to or more than the first polarization pixels.
- the image processing unit generates a high-frequency image by difference calculation using the first polarized image and the second polarized image obtained by the polarization image obtaining unit based on the combined light generated by the polarization optical unit.
- difference calculation a high-frequency image is generated by calculating a difference for each pixel from surrounding pixels that generate pixel information of different polarized light.
- the image processing section may compensate for the decrease in the amount of light by optical low-pass filter processing on the first polarized image.
- the polarization image acquisition section and the image processing section may be integrated into one device, and the polarization optical section may be detachably provided with respect to the polarization image acquisition section.
- a second aspect of this technology is A first polarized image based on the first polarized light generated from the incident light and subjected to the optical low-pass filter processing, and a second polarized light generated from the incident light and not subjected to the optical low-pass filter processing.
- the image processing method includes generating a high-frequency image in an image processing unit using a two-polarized image.
- a third aspect of this technology is A program that causes a computer to generate a high-frequency image, A first polarized image based on the first polarized light generated from the incident light and subjected to the optical low-pass filter processing, and a second polarized light generated from the incident light and not subjected to the optical low-pass filter processing.
- the program causes the computer to execute a procedure for generating a high-frequency image from a bipolarized image.
- the program of the present technology is provided in a computer-readable format to a general-purpose computer capable of executing various program codes, for example, a storage medium, a communication medium, such as an optical disk, a magnetic disk, and a storage medium such as a semiconductor memory. , or a program that can be provided by a communication medium such as a network.
- FIG. 4 is a diagram exemplifying the configuration of an image processing unit;
- FIG. 4 is a flowchart illustrating the operation of an image processing unit; It is a figure for demonstrating difference calculation processing.
- FIG. 10 is a diagram illustrating a case where a polarization optical unit is detachably provided with respect to a polarization image acquisition unit;
- FIG. 1 illustrates the configuration of an imaging system using an image processing device of the present technology.
- the imaging system 10 has a polarization optical section 20 , a polarization image acquisition section 30 and an image processing section 40 .
- the polarization optical unit 20 separates incident light into first polarized light and second polarized light with different vibration directions of different electromagnetic fields, and filters the first polarized light using an optical low-pass filter (hereinafter referred to as “optical low-pass filter”). Filter processing”) is performed, and the first polarized light after the optical low-pass filter processing and the second polarized light without the optical low-pass filter processing are combined to generate combined light.
- optical low-pass filter optical low-pass filter
- FIG. 2 illustrates the configuration of the polarization optical section.
- the polarization optical unit 20 includes a depolarization element 21, an imaging lens 22, a polarization separation element (polarization separation section) 23, optical path changing elements 24 and 25, a depolarization element 26a, an optical low-pass filter 27, a polarizing filter 26b, a polarized light combining element ( It has a polarized light synthesizing section) 28 .
- the depolarizing element 21 changes incident light (object light) into a random polarized state (unpolarized state).
- the depolarizing element 21 may be a depolarizing plate obtained by laminating wedge-shaped birefringent crystals, or may be a depolarizing element having a sub-wavelength structure region.
- the depolarizing element 21 emits the incident light to the imaging lens 22 in a non-polarized state.
- the imaging lens 22 is configured using a focus lens, and forms an optical image of the subject on the imaging plane of the polarized image acquisition section 30 . Also, the imaging lens 22 may be configured using a focus lens and a zoom lens so that an optical image of a subject having a desired image size can be formed on the imaging plane of the polarized image acquisition section 30 .
- the polarization separation element 23 separates incident light that has passed through the imaging lens 22 into first polarized light and second polarized light.
- the polarization separation element 23 is composed of a beam splitter, and splits incident light into S-polarized light and P-polarized light by the beam splitter.
- the S-polarized light is the first polarized light and the P-polarized light is the second polarized light, but the P-polarized light may be the first polarized light and the S-polarized light may be the second polarized light.
- the polarization separating element 23 emits P-polarized light in the direction of the optical path changing element 24 and S-polarized light in the direction of the optical path changing element 25, as shown in FIG. 2, for example.
- the optical path changing element 24 changes the optical path of the P-polarized light emitted from the polarization separating element 23 .
- the optical path changing element 24 is, for example, a mirror, and changes the optical path of the P-polarized light emitted from the polarization separating element 23 to the direction of the polarized light combining element 28 without changing the polarization state.
- the optical path changing element 25 changes the optical path of the S-polarized light emitted from the polarization separating element 23 .
- the optical path changing element 25 is, for example, a mirror, and changes the optical path of the S-polarized light emitted from the polarization separating element 23 to the direction of the depolarizing element 26a without changing the polarization state.
- the depolarizing element 26a changes the S-polarized light whose optical path has been changed by the optical path changing element 25 into a non-polarized state. Similar to the depolarizer 21, the depolarizer 26a may be a depolarizer plate in which wedge-shaped birefringent crystals are bonded together, or may be a depolarizer having a sub-wavelength structure region. The depolarizing element 26a outputs the S-polarized light to the optical low-pass filter 27 in a non-polarized state.
- the optical low-pass filter 27 attenuates and outputs frequency components higher than a preset spatial frequency in incident light.
- the optical low-pass filter 27 attenuates frequency components higher than a preset spatial frequency in the unpolarized S-polarized light, and outputs the transmitted light after optical low-pass filtering to the polarizing filter 26b.
- the polarizing filter 26b extracts polarized light of a predetermined polarization component from the transmitted light from the optical low-pass filter 27.
- the polarizing filter 26b may be a wire grid polarizer, a polarizer using a crystalline material, or the like.
- the polarizing filter 26b is used in a pair with the depolarizing element 26a, and extracts the S-polarized light from the transmitted light from the optical low-pass filter 27 before being depolarized by the depolarizing element 26a.
- the polarization optical unit 20 does not need to include the depolarization element 26a and the polarizing filter 26b.
- the polarization optical unit 20 only the polarizing filter 26b is provided without providing the depolarizing element 26a, and S-polarized light is extracted from the transmitted light from the optical low-pass filter 27 and emitted to the polarized light combining element 28. good.
- the polarized light combining element 28 combines the first polarized light separated by the polarization separation element 23 and subjected to optical low-pass filter processing, and the second polarized light separated by the polarization separation element 23 and not subjected to optical low-pass filter processing. Combine to produce synthetic light.
- the polarized light combining element 28 is composed of, for example, a light combining half mirror, and splits the S polarized light separated by the polarized light separating element 23 and optically low-pass filtered by the optical low-pass filter 27, and the S-polarized light separated by the polarized light separating element 23 and optically
- the optical image of the S-polarized light subjected to the optical low-pass filter processing and the optical image of the P-polarized light not subjected to the optical low-pass filter processing are combined with the P-polarized light not subjected to the low-pass filter processing. Synthetic light is emitted from the polarization optical unit 20 so that the S polarized light subjected to the optical low-pass filtering and the P polarized light not subjected to the optical low-pass filtering are emitted in the same direction.
- the polarization optical unit combines the first polarized light generated from the incident light and subjected to the optical low-pass filter processing and the second polarized light generated from the incident light and not subjected to the optical low-pass filter processing.
- the configuration is not limited to that shown in FIG.
- the polarization separating element 23, the optical low-pass filter 27, and the polarized light combining element 28 may be arranged in a straight line.
- the polarization image acquisition unit 30 is configured by providing a polarization filter on the incident surface side of the image sensor. A polarized image based on the first polarized light and a polarized image based on the second polarized light not subjected to optical low-pass filter processing are acquired.
- FIG. 3 exemplifies the configuration of the polarization image acquisition unit.
- the polarization image acquisition unit 30 has an image sensor 301 such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device), for example, as shown in FIG.
- a polarizing filter 302 is placed to obtain a polarized image.
- the polarizing filter 302 can extract linearly polarized light from subject light, and uses a wire grid, photonic liquid crystal, or the like, for example.
- the polarizing filter 302 converts the combined light emitted from the polarization optical unit 20 into a polarized image based on the first polarized light that has undergone the optical low-pass filter processing and a second polarized light that has not undergone the optical low-pass filter processing. It is configured to acquire a polarization image based on light.
- the polarizing filter 302 includes polarization pixels for generating pixel information based on P-polarized light and pixel information based on S-polarized light in the combined light emitted from the polarization optical unit 20 . , polarizing filters having a difference of 90° in polarization direction are arranged.
- the polarized image acquisition unit 30 simultaneously acquires a polarized image based on S-polarized light subjected to optical low-pass filtering and a polarized image based on P-polarized light not subjected to optical low-pass filtering. can.
- the polarization image acquisition unit 30 may generate a plurality of polarization images with different polarization directions using a multi-lens array configuration.
- a plurality of lenses 303 are provided in front of the image sensor 301 , and each lens 303 forms an optical image of a subject on the imaging surface of the image sensor 301 .
- a polarizing plate 304 is provided in front of each lens 303, and the polarization direction of the polarizing plate 304 is set to a direction in which S-polarized light subjected to optical low-pass filtering is transmitted, and a direction in which S-polarized light subjected to optical low-pass filtering is transmitted, and a direction of P-polarized light in which optical low-pass filtering is not performed. It is the direction in which polarized light is transmitted.
- the polarization image acquisition unit 30 By configuring the polarization image acquisition unit 30 in this manner, a polarization image based on the S-polarized light and a polarization image based on the P-polarized light can be simultaneously acquired in one imaging operation. Further, as shown in FIG.
- polarizing plates 312-1 and 312-2 having different polarization directions are provided in front of imaging units 310-1 and 310-2.
- a plurality of polarization images with different polarization directions may be acquired.
- a polarizing plate 312-1 transmitting S-polarized light subjected to optical low-pass filtering before the imaging unit 310-1 and a P-polarized light not subjected to optical low-pass filtering before the imaging unit 310-2
- a polarized image may be acquired.
- a polarizing plate 311 may be provided in front of the imaging section 310 as shown in (d) of FIG. In this case, by rotating the polarizing plate 311, imaging is performed in the polarization direction for transmitting the S-polarized light subjected to the optical low-pass filtering and the polarization direction for transmitting the P-polarized light not subjected to the optical low-pass filtering. Then, a polarization image based on S-polarized light subjected to optical low-pass filter processing and a polarization image based on P-polarized light not subjected to optical low-pass filter processing are acquired.
- optical low-pass filter processing is performed. Parallax can be ignored between the polarized image based on the S-polarized light subjected to the optical low-pass filter processing and the polarized image based on the P-polarized light not subjected to the optical low-pass filter processing.
- a polarized image based on S-polarized light subjected to optical low-pass filter processing and a polarized image based on P-polarized light not subjected to optical low-pass filter processing are divided according to the amount of parallax. may be aligned.
- the image processing unit 40 generates a first polarized image based on the first polarized light that has been subjected to the optical low-pass filter processing acquired by the polarized image acquisition unit 30 and a second polarization image that has not been subjected to the optical low-pass filter processing.
- a high-frequency image is generated by extracting high-frequency components from the subject image using the second polarized image based on the polarized light.
- FIG. 4 exemplifies the configuration of the image processing unit.
- the image processing unit 40 uses the polarization image acquired by the polarization image acquisition unit 30 to generate a high-pass image.
- the image processing unit 40 has, for example, a compensation unit 41 and a high frequency image generation unit 42 .
- the compensator 41 performs gain adjustment on the first polarized image on which the optical low-pass filtering has been performed in order to compensate for the amount of light that has decreased due to the optical low-pass filtering. Note that the gain used for compensation is set for the entire screen or for each pixel position based on the measurement result by measuring the amount of light that is reduced by the optical low-pass filter processing in advance.
- the high-pass image generator 42 calculates the difference between the polarized image based on the second polarized light and the first polarized image whose gain has been adjusted by the compensator 41 to generate a high-pass image.
- the high-frequency image generation unit 42 may use a difference between positive values or negative values, or may use an absolute difference value as the image data representing the high-frequency image. Also, the bit width of the difference and the absolute value of the difference may be reduced to reduce the data amount of the high-frequency image. Alternatively, the difference or the absolute value of the difference may be compared with a preset threshold, and the binary data indicating the comparison result may be used as the image data of the high-frequency image.
- the image processing unit 40 may be configured without the compensating unit 41 when there is no need to consider the reduction in the amount of light due to the optical low-pass filter processing in the high-frequency image.
- the polarization optical unit 20 separates the incident light into the first polarized light and the second polarized light, performs optical low-pass filter processing on the first polarized light, and obtains the first polarized light after filtering. and the second polarized light that has not undergone optical low-pass filtering to generate combined light.
- the polarization optical unit 20 having the configuration shown in FIG. 2 separates incident light into S-polarized light and P-polarized light, performs optical low-pass filter processing on the S-polarized light, and converts the filtered S-polarized light into P-polarized light that has not undergone optical low-pass filter processing is combined to generate combined light.
- the polarization image acquisition unit 30 has a configuration in which a polarization filter is provided on the incident surface side of the image sensor. , acquire a polarization image based on polarized light that has not undergone optical low-pass filtering.
- the polarization image acquisition unit 30 has pixels provided with polarization filters that transmit S-polarized light and pixels provided with polarization filters that transmit P-polarized light.
- the polarizing filters are arranged in such a manner that the pixels are arranged in a shape or in a line.
- the polarization image acquisition unit 30 acquires a polarization image based on S-polarized light subjected to optical low-pass filter processing by using pixels provided with a polarizing filter that transmits S-polarized light, and transmits P-polarized light.
- a polarized image based on P-polarized light that has not undergone optical low-pass filter processing is obtained by using pixels provided with a polarizing filter for the polarizing light.
- the image processing unit 40 uses the polarization image generated by the polarization image acquisition unit 30 to generate a high frequency image by extracting high frequency components from the subject image.
- FIG. 5 is a flowchart illustrating the operation of the image processing section.
- the image processing unit 40 acquires a polarization image.
- the image processing unit 40 converts the polarized image generated by the polarized image acquisition unit 30 based on the S-polarized light subjected to the optical low-pass filter processing to the optical low-pass filter processing.
- a polarization image based on the P-polarized light for which the is not performed is acquired, and the process proceeds to step ST2.
- step ST2 the image processing unit 40 performs compensation processing.
- the polarization optical unit 20 has the configuration shown in FIG.
- Gain adjustment is performed to compensate for the decrease in the amount of light generated in the S-polarized light by the optical low-pass filter processing, and the process proceeds to step ST3.
- step ST3 the image processing unit 40 performs difference calculation processing.
- a difference between a polarization image based on S-polarized light and a polarization image based on P-polarized light is calculated.
- FIG. 6 is a diagram for explaining the difference calculation process.
- FIG. 6 illustrates a case where two polarization pixels having the same polarization direction are arranged side by side in the horizontal direction or the vertical direction in the polarization image acquisition unit 30 .
- FIG. 6 shows a case where two polarized pixels having the same polarization direction are arranged horizontally.
- the image processing unit 40 calculates the difference between vertically adjacent polarization pixels.
- FIG. 6 shows a case where two polarized pixels having the same polarization direction are arranged side by side in the vertical direction.
- the image processing unit 40 calculates the difference between horizontally adjacent polarization pixels.
- FIG. 6 shows a case where two polarized pixels having the same polarization direction are arranged horizontally.
- the image processing unit 40 calculates the difference between the diagonally adjacent polarization pixels.
- FIG. 6 shows a case where two polarized pixels having the same polarization direction are arranged side by side in the vertical direction.
- the image processing unit 40 calculates the difference between the diagonally adjacent polarization pixels.
- FIG. 6 shows a case where two polarized pixels having the same polarization direction are arranged horizontally.
- the image processing unit 40 calculates the pixel calculated value (addition value or average value) of two pixels arranged in the horizontal direction, and calculates the difference between the pixel calculated values for different polarization directions.
- FIG. 6 shows a case where two polarized pixels having the same polarization direction are arranged side by side in the vertical direction.
- the image processing unit 40 calculates the pixel calculated values (added value or average value) of two pixels arranged in the vertical direction, and calculates the difference between the pixel calculated values for different polarization directions.
- FIG. 6 illustrates a case in which two polarized pixels with the same polarization direction are arranged horizontally or vertically.
- polarization pixels having different polarization directions may be arranged in a mosaic pattern. In this case, the difference is calculated between adjacent polarization pixels having different polarization directions.
- the polarization image is desirably an image that has not undergone optical low-pass filter processing.
- the polarized image acquisition unit 30 performs optical low-pass filtering rather than polarized pixels (referred to as first polarized pixels) that generate pixel information based on the first polarized light that has undergone optical low-pass filtering. increase the number of polarization pixels (referred to as second polarization pixels) that generate pixel information based on the second polarized light for which the is not performed.
- FIG. 7 illustrates a case in which more second polarization pixels are provided than first polarization pixels.
- a polarization pixel block of 2 ⁇ 2 pixels one first polarization pixel and three second polarization pixels are provided. It shows the case where it is provided.
- the second polarization pixels when more second polarization pixels are provided than first polarization pixels, the second polarization pixels, which have a larger number of pixels, can acquire more pixel information corresponding to polarized light that is not subjected to optical low-pass filter processing. . Further, in the first polarization pixels with a small number of pixels, optical low-pass filter processing is performed to obtain pixel information from which high-frequency components are removed.
- FIG. 7 shows a case where the difference is calculated between vertically adjacent polarization pixels having different polarization directions
- FIG. 7(c) shows the case of calculating a difference between adjacent polarization pixels in different polarization directions in an oblique direction.
- the image processing unit 40 calculates the difference between the polarized pixel that generates pixel information based on S-polarized light and the polarized pixel that generates pixel information based on P-polarized light adjacent to this polarized pixel, and proceeds to step ST4. .
- the image processing unit 40 generates a high-frequency image.
- the image processing unit 40 generates a high frequency image representing high frequency components of the subject image based on the difference calculated in step ST3.
- the image processing unit 40 may use the positive or negative difference or the absolute difference value as the image data representing the high-frequency image. You may reduce the data amount of a high frequency image.
- the difference or the absolute value of the difference may be compared with a preset threshold, and the binary data indicating the comparison result may be used as the image data indicating the high-frequency image.
- Formula (1) exemplifies a formula for generating binary data Ded.
- "Ip” is pixel information (pixel value) based on P-polarized light that has not been subjected to optical low-pass filtering
- "Is” is S-polarized light that has been subjected to optical low-pass filtering. shows pixel information (pixel values) based on .
- “ ⁇ ” is a preset threshold.
- the image processing unit 40 can generate an edge image indicating the position of the edge as a high-frequency image by generating the binary data Ded based on the comparison between the absolute difference value and the threshold.
- the present technology generates polarized light with high-frequency components attenuated by optical low-pass filter processing, and performs a polarized image and optical low-pass filter processing based on the polarized light that has undergone optical low-pass filter processing.
- a high-pass image is acquired from a polarization image based on unpolarized light. Therefore, according to the present technology, compared to the case where a high-frequency image is generated by performing filtering processing on image information, peak detection of strength of gradients related to straight lines or brightness, etc., high-frequency images can be obtained at a low computation cost and at a high speed. image can be acquired.
- the imaging system 10 is not limited to the case where the polarized image acquisition section 30 and the image processing section 40 are provided separately. That is, the image processing apparatus of the present technology may be a solid-state imaging device in which the polarization image acquisition section 30 and the high-frequency image generation section 42 are integrated.
- FIG. 8 illustrates the configuration of a solid-state imaging device.
- the solid-state imaging device 50 has a pixel section 51 , a signal processing section 52 and a control section 53 .
- the pixel unit 51 is configured by arranging pixels that perform photoelectric conversion in an array.
- the pixel unit 51 generates a pixel signal corresponding to the amount of polarized light transmitted through the polarizing filter in the pixel provided with the polarizing filter as described above.
- the signal processing unit 52 is provided with a vertical driving circuit, a column signal processing circuit, a horizontal driving circuit, and the like.
- the vertical driving circuit Based on the clock signal and control signal from the control unit 53, the vertical driving circuit sequentially selectively scans the pixels of the pixel unit 51 in units of rows in the vertical direction, reads the pixel signals generated by each pixel, and performs column signal processing. feed the circuit.
- the column signal processing circuit performs signal processing such as noise removal on pixel signals read from pixels for each pixel column based on the clock signal and control signal from the control unit 53 .
- the column signal processing circuit performs signal processing such as CDS (Correlated Double Sampling) for removing pixel-specific fixed pattern noise.
- the horizontal drive circuit sequentially selects the pixel columns of the column signal processing circuit based on the clock signal and control signal from the control unit 53, and outputs the pixel signals that have undergone signal processing.
- the signal processing unit 52 performs arithmetic processing on pixel signals output from the pixel unit 51 in the same manner as the image processing unit 40 described above.
- the signal processing unit 52 sequentially stores the pixel signals output from the column signal processing circuit in, for example, a line buffer, and combines the pixel signals of the lines stored in the line buffer with the next line output from the column signal processing circuit. are used to calculate differences between adjacent pixels with different polarization directions as shown in FIGS. As shown in FIG. 6B, when calculating the difference between horizontally adjacent pixels having different polarization directions, the line buffer may not be provided.
- the gain adjustment and arithmetic processing in the signal processing unit 52 may be performed using analog pixel signals and the processing results may be converted to digital signals. Gain adjustment and arithmetic processing may be performed.
- the signal processing unit 52 is preset as a signal indicating a positive or negative difference result, a signal indicating an absolute difference value, a signal obtained by reducing the bit width of the difference or the absolute difference value, or the difference or the absolute difference value.
- the thresholds are compared, and a signal indicating the comparison result is output as image data of a high-frequency image.
- the control unit 53 Based on the vertical synchronization signal, horizontal synchronization signal and clock signal, the control unit 53 generates a clock signal and a control signal that serve as a reference for the operation of the vertical driving circuit, the column signal processing circuit, the horizontal driving circuit, etc., and controls the signal processing unit. 52.
- the imaging system 10 is not limited to the case where the polarization optical section 20 is fixed to the polarization image acquisition section 30, and the polarization optical section 20 may be detachably installed with respect to the polarization image acquisition section 30.
- FIG. 9 illustrates a case where the polarization optical section is detachably provided with respect to the polarization image acquisition section.
- the polarization optical section 20 is attached to the polarization image acquisition section 30 via the mount mechanism 60 .
- the mount mechanism 60 detachably holds the polarization optical section 20 with respect to the polarization image acquisition section 30 .
- the mount mechanism 60 is arranged such that the first polarized light pixel of the polarized image acquisition unit 30 is polarized in the polarization direction in which the transmission of the first polarized light contained in the combined light emitted from the polarization optical unit 20 is maximized, and the second polarized light is The polarization optical unit 20 and the polarized image acquisition unit 30 are positioned so that the pixel is polarized in the polarization direction that maximizes the transmission of the second polarized light contained in the combined light emitted from the polarization optical unit 20 .
- the polarization optical unit is detachably attached to the polarization image acquisition unit in this way, the polarization optical unit having at least one of the focal length, the zoom magnification, and the filter characteristics of the optical low-pass filter is selected and used. This makes it possible to easily obtain a high-frequency image with a desired angle of view, filter characteristics, and the like.
- the technology according to the present disclosure can be applied to various fields.
- the technology according to the present disclosure can be realized as a device mounted on any type of moving body such as automobiles, electric vehicles, hybrid electric vehicles, motorcycles, bicycles, personal mobility, airplanes, drones, ships, and robots.
- it may be implemented as a device mounted on equipment used in the production process in a factory or equipment used in the construction field. If applied to such a field, edge images showing the contours of surrounding objects can be obtained, so that the surrounding environment can be easily grasped, and the fatigue of drivers and workers can be reduced. In addition, it becomes possible to perform automatic driving and various operations more safely and accurately.
- the technology according to the present disclosure can also be applied to the medical field. For example, if it is applied to the imaging of the operative site during surgery, it will be possible to observe the state of the operative site using not only normal images but also edge images, reducing operator fatigue and ensuring safer and more reliable surgery. It becomes possible to do Also, it becomes possible to perform diagnosis and the like with high accuracy.
- a series of processes described in the specification can be executed by hardware, software, or a composite configuration of both.
- a program recording a processing sequence is installed in a memory within a computer incorporated in dedicated hardware and executed.
- the program can be installed and executed in a general-purpose computer capable of executing various processes.
- the program can be recorded in advance on a hard disk, SSD (Solid State Drive), or ROM (Read Only Memory) as a recording medium.
- the program can be stored on a flexible disk, CD-ROM (Compact Disc Read Only Memory), MO (Magneto optical) disc, DVD (Digital Versatile Disc), BD (Blu-Ray Disc (registered trademark)), magnetic disc, semiconductor memory card It can be temporarily or permanently stored (recorded) in a removable recording medium such as.
- Such removable recording media can be provided as so-called package software.
- the program can also be downloaded from the download site via a network such as WAN (Wide Area Network), LAN (Local Area Network) such as cellular, or the Internet to the computer wirelessly or by wire. You can transfer with The computer can receive the program transferred in this way and install it in a built-in recording medium such as a hard disk.
- WAN Wide Area Network
- LAN Local Area Network
- the image processing apparatus of the present technology can also have the following configuration.
- An image processing device comprising a high-pass image generation unit that generates a high-pass image using a second polarized image based on the above.
- a first polarized pixel that generates pixel information of the first polarized image based on combined light obtained by combining the first polarized light and the second polarized light that have undergone the optical low-pass filtering;
- the image processing apparatus according to any one of (1) to (4), further comprising a polarization image acquisition unit having second polarization pixels that generate pixel information of a two-polarization image.
- (6) The image processing device according to (5), wherein the polarization image acquisition unit sets the angle difference between the polarization directions of the first polarization pixels and the second polarization pixels to 90 degrees.
- the polarization image acquisition unit includes the second polarization pixels equal to or more than the first polarization pixels.
- the image processing apparatus according to any one of (5) to (7), in which the polarization image acquisition section and the high-frequency image generation section are integrated. (9) further comprising a polarization optical unit that generates synthesized light by synthesizing the first polarized light and the second polarized light that have been subjected to the optical low-pass filtering,
- the polarization optical unit is a polarization separation unit that separates the incident light into first polarized light and second polarized light; an optical filter unit that performs optical low-pass filter processing on the first polarized light; (1) a polarized light combiner configured to combine the first polarized light that has been subjected to the optical low-pass filtering and the second polarized light that has not been subjected to the optical low-pass filtering to generate combined light;
- the image processing apparatus according to any one of (8) to (8).
- the image processing apparatus has a depolarization element that depolarizes the incident light incident on the polarization separation section.
- the polarization optical section includes a depolarization element that depolarizes polarized light incident on the optical filter section;
- the image processing device according to (9) or (10), further comprising a polarizing filter that extracts the first polarized light from the non-polarized light that has been optically low-pass filtered by the optical filter section.
- the polarization optical unit is generating pixel information of the first polarized image based on combined light obtained by combining the first polarized light that has undergone the optical low-pass filtering and the second polarized light that has not undergone the optical low-pass filtering;
- the image processing device according to any one of (9) to (11), which is detachably attached to a polarization image acquisition unit having one polarization pixel and a second polarization pixel for generating pixel information of the second polarization image. .
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Abstract
Description
入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とを用いて高域画像を生成する高域画像生成部
を備える画像処理装置にある。
入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とを用いて高域画像を画像処理部で生成すること
を含む画像処理方法にある。
高域画像の生成をコンピュータで実行させるプログラムであって、
入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とから高域画像を生成する手順
を前記コンピュータで実行させるプログラムにある。
1.撮像システムの構成
2.撮像システムの動作
3.変形例
4.応用例
図1は、本技術の画像処理装置を用いた撮像システムの構成を例示している。
次に、撮像システムの動作について説明する。偏光光学部20は、上述したように、入射光を第1偏光光と第2偏光光に分離して、第1偏光光に対して光学ローパスフィルタ処理を行い、フィルタ処理後の第1偏光光と光学ローパスフィルタ処理が行われていない第2偏光光を合成して合成光を生成する。例えば、図2に示す構成の偏光光学部20は、入射光をS偏光光とP偏光光に分離して、S偏光光に対して光学ローパスフィルタ処理を行い、フィルタ処理後のS偏光光と光学ローパスフィルタ処理が行われていないP偏光光を合成して合成光を生成する。
ところで、撮像システム10は、偏光画像取得部30と画像処理部40を別個に設ける場合に限らない。すなわち、本技術の画像処理装置は、偏光画像取得部30と高域画像生成部42を一体化した固体撮像デバイスであってもよい。
本開示に係る技術は、様々な分野へ適用することができる。例えば、本開示に係る技術は、自動車、電気自動車、ハイブリッド電気自動車、自動二輪車、自転車、パーソナルモビリティ、飛行機、ドローン、船舶、ロボット等のいずれかの種類の移動体に搭載される装置として実現されてもよい。また、工場における生産工程で用いられる機器や建設分野で用いられる機器に搭載される装置として実現されてもよい。このような分野に適用すれば、周囲の物体等の輪郭を示すエッジ画像を取得できるので、周辺環境を容易に把握できるようになり、運転者や作業者の疲労を軽減できる。また、自動運転や種々の作業等をより安全に精度よく行うことが可能となる。
(1) 入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とを用いて高域画像を生成する高域画像生成部
を備える画像処理装置。
(2) 前記高域画像生成部は、前記第1偏光画像と前記第2偏光画像を用いた差分演算を行い、前記高域画像を生成する(1)に記載の画像処理装置。
(3) 前記高域画像生成部は、異なる偏光光の画素情報を生成する周辺画素との差分を画素毎に算出して前記高域画像を生成する(2)に記載の画像処理装置。
(4) 前記高域画像生成部は、前記光学ローパスフィルタ処理による光量減少の補償を、前記第1偏光画像に対して行う(1)乃至(3)の何れかに記載の画像処理装置。
(5) 前記光学ローパスフィルタ処理が行われた前記第1偏光光と前記第2偏光光を合成した合成光に基づき、前記第1偏光画像の画素情報を生成する第1偏光画素と、前記第2偏光画像の画素情報を生成する第2偏光画素を有する偏光画像取得部をさらに備える(1)乃至(4)の何れかに記載の画像処理装置。
(6) 前記偏光画像取得部は、前記第1偏光画素と前記第2偏光画素との偏光方向の角度差を90度とする(5)に記載の画像処理装置。
(7) 前記偏光画像取得部は、前記第2偏光画素を、前記第1偏光画素と等しくまたは多く設けた(5)または(6)に記載の画像処理装置。
(8) 前記偏光画像取得部と前記高域画像生成部を一体化した(5)乃至(7)の何れかに記載の画像処理装置。
(9) 前記光学ローパスフィルタ処理が行われた前記第1偏光光と前記第2偏光光を合成した合成光を生成する偏光光学部をさらに備え、
前記偏光光学部は、
前記入射光を第1偏光光と第2偏光光に分離する偏光分離部と、
前記第1偏光光に対して光学ローパスフィルタ処理を行う光学フィルタ部と、
前記光学ローパスフィルタ処理が行われた前記第1偏光光と、前記光学ローパスフィルタ処理が行われていない前記第2偏光光とを合成して合成光を生成する偏光光合成部と
を有する(1)乃至(8)の何れかに記載の画像処理装置。
(10) 前記偏光光学部は、前記偏光分離部に入射する前記入射光を無偏光とする偏光解消素子を有する(9)に記載の画像処理装置。
(11) 前記偏光光学部は、前記光学フィルタ部に入射される偏光光を無偏光とする偏光解消素子と、
前記光学フィルタ部で光学ローパスフィルタ処理された前記無偏光から前記第1偏光光を取り出す偏光フィルタを有する(9)または(10)に記載の画像処理装置。
(12) 前記偏光光学部は、
前記光学ローパスフィルタ処理が行われた前記第1偏光光と前記光学ローパスフィルタ処理が行われていない前記第2偏光光を合成した合成光に基づき、前記第1偏光画像の画素情報を生成する第1偏光画素と、前記第2偏光画像の画素情報を生成する第2偏光画素を有する偏光画像取得部に対して着脱可能に設けた(9)乃至(11)の何れかに記載の画像処理装置。
20・・・偏光光学部
21,26a・・・偏光解消素子
22・・・撮像レンズ
23・・・偏光分離素子
24,25・・・光路変更素子
26b・・・偏光フィルタ
27・・・光学ローパスフィルタ
28・・・偏光光合成素子
30・・・偏光画像取得部
40・・・画像処理部
41・・・補償部
42・・・高域画像生成部
50・・・固体撮像デバイス
51・・・画素部
52・・・信号処理部
53・・・制御部
60・・・マウント機構
301・・・イメージセンサ
302・・・偏光フィルタ
303・・・レンズ
304,311,312-1,312-2・・・偏光板
310,310-1,310-2・・・撮像部
Claims (14)
- 入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とを用いて高域画像を生成する高域画像生成部
を備える画像処理装置。 - 前記高域画像生成部は、前記第1偏光画像と前記第2偏光画像を用いた差分演算を行い、前記高域画像を生成する
請求項1に記載の画像処理装置。 - 前記高域画像生成部は、異なる偏光光の画素情報を生成する周辺画素との差分を画素毎に算出して前記高域画像を生成する
請求項2に記載の画像処理装置。 - 前記高域画像生成部は、前記光学ローパスフィルタ処理による光量減少の補償を、前記第1偏光画像に対して行う
請求項1に記載の画像処理装置。 - 前記光学ローパスフィルタ処理が行われた前記第1偏光光と前記第2偏光光を合成した合成光に基づき、前記第1偏光画像の画素情報を生成する第1偏光画素と、前記第2偏光画像の画素情報を生成する第2偏光画素を有する偏光画像取得部をさらに備える
請求項1に記載の画像処理装置。 - 前記偏光画像取得部は、前記第1偏光画素と前記第2偏光画素との偏光方向の角度差を90度とする
請求項5に記載の画像処理装置。 - 前記偏光画像取得部は、前記第2偏光画素を、前記第1偏光画素と等しくまたは多く設けた
請求項5に記載の画像処理装置。 - 前記偏光画像取得部と前記高域画像生成部を一体化した
請求項5に記載の画像処理装置。 - 前記光学ローパスフィルタ処理が行われた第1偏光光と前記第2偏光光を合成した合成光を生成する偏光光学部をさらに備え、
前記偏光光学部は、
前記入射光を第1偏光光と第2偏光光に分離する偏光分離部と、
前記第1偏光光に対して光学ローパスフィルタ処理を行う光学フィルタ部と、
前記光学ローパスフィルタ処理が行われた前記第1偏光光と、前記光学ローパスフィルタ処理が行われていない前記第2偏光光とを合成して合成光を生成する偏光光合成部と
を有する
請求項1に記載の画像処理装置。 - 前記偏光光学部は、前記偏光分離部に入射する前記入射光を無偏光とする偏光解消素子を有する
請求項9に記載の画像処理装置。 - 前記偏光光学部は、前記光学フィルタ部に入射される偏光光を無偏光とする偏光解消素子と、
前記光学フィルタ部で光学ローパスフィルタ処理された前記無偏光から前記第1偏光光を取り出す偏光フィルタを有する
請求項9に記載の画像処理装置。 - 前記偏光光学部は、
前記光学ローパスフィルタ処理が行われた前記第1偏光光と前記光学ローパスフィルタ処理が行われていない前記第2偏光光を合成した合成光に基づき、前記第1偏光画像の画素情報を生成する第1偏光画素と、前記第2偏光画像の画素情報を生成する第2偏光画素を有する偏光画像取得部に対して着脱可能に設けた
請求項9に記載の画像処理装置。 - 入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とを用いて高域画像を高域画像生成部で生成すること
を含む画像処理方法。 - 高域画像の生成をコンピュータで実行させるプログラムであって、
入射光から生成されて光学ローパスフィルタ処理が行われた第1偏光光に基づく第1偏光画像と、前記入射光から生成されて前記光学ローパスフィルタ処理が行われていない第2偏光光に基づく第2偏光画像とから高域画像を生成する手順
を前記コンピュータで実行させるプログラム。
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2016075561A (ja) * | 2014-10-06 | 2016-05-12 | パナソニックIpマネジメント株式会社 | 光沢判定装置および光沢判定方法 |
JP2019004203A (ja) * | 2017-06-12 | 2019-01-10 | ソニーセミコンダクタソリューションズ株式会社 | 画像処理装置、撮像装置、画像処理方法、および、プログラム。 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004120602A (ja) * | 2002-09-27 | 2004-04-15 | Matsushita Electric Ind Co Ltd | 撮像方法、撮像装置、撮像装置におけるプログラム、その媒体 |
JP2016075561A (ja) * | 2014-10-06 | 2016-05-12 | パナソニックIpマネジメント株式会社 | 光沢判定装置および光沢判定方法 |
JP2019004203A (ja) * | 2017-06-12 | 2019-01-10 | ソニーセミコンダクタソリューションズ株式会社 | 画像処理装置、撮像装置、画像処理方法、および、プログラム。 |
Non-Patent Citations (1)
Title |
---|
CANNY, J: "A Computational Approach To Edge Detection", EEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,PAMI, vol. 8, no. 6, 1986, pages 679 - 698, XP000604891, DOI: 10.1109/TPAMI.1986.4767851 |
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