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公开(公告)号：US11336849B2
公开(公告)日：2022-05-17
申请号：US16324937
申请日：2017-06-13
Applicant: SONY CORPORATION
Inventor： Teppei Kurita , Shun Kaizu , Yuhi Kondo , Yasutaka Hirasawa
Abstract: A polarization imaging section 20 includes polarized pixels in each of a plurality of polarization directions. The polarization imaging section 20 includes a polarizer. The polarization imaging section 20 outputs image signals of a polarized image to a defect detecting section 35 of an image processing section 30. In a case where a difference between a pixel value of a target polarized pixel generated by the polarization imaging section and a pixel value of the target polarized pixel estimated from polarization characteristics corresponding to pixel values of peripheral pixels in a polarization direction different from a polarization direction of the target polarized pixel is greater than a predetermined allowable range, the defect detecting section 35 determines that the target polarized pixel is a defective pixel. Therefore, it is possible to detect a defect of a pixel in the polarization imaging section that generates the polarized image.
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12.发明申请公开(公告)号：US20180160060A1
公开(公告)日：2018-06-07
申请号：US15885701
申请日：2018-01-31
Applicant: Sony Corporation
Inventor： Tomoo Mitsunaga , Shun Kaizu , Teppei Kurita , Toru Nishi
IPC: H04N5/355 , H04N9/04 , H04N5/378 , H04N5/3745 , H04N5/235
CPC classification number: H04N5/35563 , H04N5/2353 , H04N5/2355 , H04N5/35518 , H04N5/35554 , H04N5/37457 , H04N5/378 , H04N9/045
Abstract: [Object] The present technique relates to an image pickup device, an image pickup method, and a program that enables pixels having 4 types of spectral sensitivities to be controlled while changing exposure times.[Solving Means] The present technique is applicable to an image pickup device including pixels having 4 types of spectral sensitivities, that include pixels having a panchromatic spectral sensitivity and are arranged on an image pickup surface, pixels that realize a first exposure and pixels that realize a second exposure different from the first exposure being arranged on the image pickup surface with respect to the 4 types of spectral sensitivities. Further, a first line in which first pixels having the panchromatic spectral sensitivity are arranged in a two-pixel cycle in a specific direction and a second line in which the first pixels are arranged while deviating by one pixel from the first line in the specific direction are arranged alternately in a direction orthogonal to the specific direction, and pixels having spectral sensitivities different from the spectral sensitivity of the first pixels are arranged in a 2- or 4-pixel cycle in the specific direction for each of the spectral sensitivities and 2-dimensionally constitute a cyclic arrangement of 4×4 pixels in which the first spectral sensitivity pixels are arranged in a checkerboard arrangement.
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13.发明授权公开(公告)号：US09800806B2
公开(公告)日：2017-10-24
申请号：US15225276
申请日：2016-08-01
Applicant: SONY CORPORATION
Inventor： Shun Kaizu , Tomoo Mitsunaga
CPC classification number: H04N5/3535 , H04N5/2353 , H04N5/35554 , H04N5/378
Abstract: An image processing apparatus includes an intermediate image generating unit configured to input an image which has been shot with differing exposure times set by region, generates a plurality of exposure pattern images corresponding to differing exposure times based on the input image, and generates a plurality of timing images which are difference images of the plurality of exposure pattern images; and a distortion correction processing unit configured to generate a corrected image equivalent to an exposure processing image at a predetermined exposure time by synthesizing processing of the plurality of timing images.
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14.发明申请公开(公告)号：US20170251188A1
公开(公告)日：2017-08-31
申请号：US15597719
申请日：2017-05-17
Applicant: Sony Corporation
Inventor： Shun Kaizu
CPC classification number: H04N9/735 , G06T3/4015 , G06T2207/20208 , H04N5/2355 , H04N5/35581 , H04N5/3597 , H04N9/045 , H04N9/07 , H04N2209/045
Abstract: There are provided an apparatus and a method which generate an RGB image having less color noise and fewer false colors by inputting an RGBW image. The apparatus has an image sensor having an RGBW array, and an image processing unit which performs image processing by inputting a sensor image formed of an RGBW pixel signal output from the image sensor. The image sensor has a periodic array of a unit composition formed of each RGBW pixel, and has an array in which composition ratios of each RGB pixel within the unit composition are adapted to be the same as each other. The image processing unit converts a pixel array of the sensor image formed of the RGBW pixel signal, and performs at least either array conversion processing for generating an RGB array image or signal processing for generating each RGB image signal in which all RGB pixel values are set for each pixel position of the sensor image.
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公开(公告)号：US09560290B2
公开(公告)日：2017-01-31
申请号：US14472153
申请日：2014-08-28
Applicant: Sony Corporation
Inventor： Kensei Jo , Shun Kaizu , Tomoo Mitsunaga
CPC classification number: H04N5/265 , G06T5/003 , G06T5/50 , G06T2207/20224 , H04N5/217 , H04N5/2355 , H04N5/2621 , H04N9/045
Abstract: Long and short exposure time pixel information are input to pixel information. A long exposure time image set with the pixel values assuming all of the pixels have been exposed for a long time and a short exposure time image set with the pixel values assuming all of the pixels have been exposed for a short time are generated. A point spread function corresponding to the long exposure time image is computed as a long exposure time image PSF. A corrected image is generated using the short exposure time image, the long exposure time image, and the long exposure time image PSF. The corrected image is generated as a wide dynamic range image utilizing the pixel information for the long and short exposure time image. Utilizing the pixel information for the short exposure time image with little blurring, makes the corrected image a high quality corrected image with little blurring.
Abstract translation: 长时间和短曝光时间像素信息被输入到像素信息。 产生具有假设所有像素的像素值的长曝光时间图像已经被长时间曝光，并且产生假定所有像素的像素值设置的短曝光时间图像已经短时间曝光。 与长曝光时间图像对应的点扩散函数被计算为长曝光时间图像PSF。 使用短曝光时间图像，长曝光时间图像和长曝光时间图像PSF生成校正图像。 利用长曝光时间图像和短曝光时间图像的像素信息，生成校正图像作为宽动态范围图像。 利用少量模糊的短曝光时间图像的像素信息，使得校正图像具有很少模糊的高质量校正图像。
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Patent Agency Ranking
公开(公告)号：US12101583B2
公开(公告)日：2024-09-24
申请号：US17059353
申请日：2019-03-13
Applicant: SONY CORPORATION
Inventor： Hajime Mihara , Shun Kaizu , Teppei Kurita , Yasutaka Hirasawa
CPC classification number: H04N9/3167 , G01J4/04 , G02B27/283 , G06T5/70 , H04N23/81 , H04N25/11 , H04N25/671
Abstract: An information generation unit 30 acquires, from a polarization imaging unit 20, observation values in which polarization directions are at least three or more directions (m≥3). A noise amount calculation unit 35-1 calculates an amount of noise on the basis of an observation value in a first polarization direction. Similarly, noise amount calculation units 35-2 to 35-m calculate amounts of noise on the basis of observation values in second to m-th polarization directions. A polarization model estimation unit 36 estimates a polarization model by using the observation values for the respective polarization directions and the amounts of noise calculated by the noise amount calculation units 35-1 to 35-m. Thus, it is possible to calculate a polarization model that is robust against noise.
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公开(公告)号：US11297252B2
公开(公告)日：2022-04-05
申请号：US17056335
申请日：2019-02-13
Applicant: SONY CORPORATION
Inventor： Shun Kaizu
IPC: H04N5/235
Abstract: A signal processing apparatus and a signal processing method that process a signal to control exposure timing of an image sensor, and an imaging device are provided. The signal processing apparatus includes a first adjustment unit that adjusts exposure density in an exposure period, and a second adjustment unit that adjusts a start time and an end time of exposure in a frame period, and provides a control signal to control exposure timing by the exposure density between the start time and the end time, to an image sensor including a mechanism to accumulate photoelectrically converted charge a plurality of times separately and then AD-convert and read out total charge, to allow acquisition of a flicker-free high dynamic range image.
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公开(公告)号：US11076094B2
公开(公告)日：2021-07-27
申请号：US16619170
申请日：2018-04-09
Applicant: SONY CORPORATION
Inventor： Teppei Kurita , Shun Kaizu , Yasutaka Hirasawa
Abstract: In an image capturing unit 20, an imaging element has a 4×4-pixel area in which: pixels including at least one pixel of every color component of a plurality of color components are polarization pixels of the same polarization direction; and pixels which are not the polarization pixels constitute a majority of the 4×4-pixel area, and are non-polarization pixels. The unpolarized component calculating unit 31 of the image processing unit 30 calculates unpolarized components for each pixel and for each color component by using pixel signals of polarization pixels, and pixel signals of non-polarization pixels that are generated at the image capturing unit 20. The diffuse reflection component calculating unit 32 calculates diffuse reflection components for each pixel and for each color component by using pixel signals of polarization pixels, and pixel signals of non-polarization pixels that are generated at the image capturing unit 20.
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19.发明授权公开(公告)号：US10904503B2
公开(公告)日：2021-01-26
申请号：US16670239
申请日：2019-10-31
Applicant: SONY CORPORATION
Inventor： Yuhi Kondo , Shun Kaizu , Teppei Kurita , Tuo Zhuang , Yasutaka Hirasawa , Ying Lu
Abstract: A correction information generation section 50 emits measurement light having uniform intensity onto a polarized image acquisition section 20 acquiring a polarized image. Further, on the basis of a measured polarized image acquired from the polarized image acquisition section 20, the correction information generation section 50 generates variation correction information for correcting sensitivity variations caused in the measured polarized image due to difference in polarization direction, and causes a correction information storage section 30 to store the generated variation correction information. A correction processing section 40 then corrects the sensitivity variations caused in the polarized image acquired by the polarized image acquisition section 20 due to the difference in polarization direction by using the pre-generated variation correction information stored in the correction information storage section 30. Therefore, the polarized image outputted from the correction processing section 40 becomes a high-quality polarized image with, for example, its sensitivity variations corrected.
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公开(公告)号：US10200664B2
公开(公告)日：2019-02-05
申请号：US15597719
申请日：2017-05-17
Applicant: Sony Corporation
Inventor： Shun Kaizu
IPC: H04N9/083 , H04N3/14 , H04N5/335 , H04N9/04 , H04N9/73 , H04N9/07 , G06T3/40 , H04N5/359 , H04N5/235 , H04N5/355
Abstract: There are provided an apparatus and a method which generate an RGB image having less color noise and fewer false colors by inputting an RGBW image. The apparatus has an image sensor having an RGBW array, and an image processing unit which performs image processing by inputting a sensor image formed of an RGBW pixel signal output from the image sensor. The image sensor has a periodic array of a unit composition formed of each RGBW pixel, and has an array in which composition ratios of each RGB pixel within the unit composition are adapted to be the same as each other. The image processing unit converts a pixel array of the sensor image formed of the RGBW pixel signal, and performs at least either array conversion processing for generating an RGB array image or signal processing for generating each RGB image signal in which all RGB pixel values are set for each pixel position of the sensor image.
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