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公开(公告)号：US10212401B2
公开(公告)日：2019-02-19
申请号：US15841513
申请日：2017-12-14
Inventor： Satoshi Sato , Takeo Azuma , Kunio Nobori , Hisashi Watanabe , Takamasa Ando , Nobuhiko Wakai
IPC: H04N9/04 , H01L27/146 , G02F1/1335 , G02B5/04 , G02B5/20 , G02B5/02 , H04N9/73 , H04N9/083
Abstract: An imaging system serving as an image generation device is provided with: a random optical filter array that has a plurality of types of optical filters and a scattering unit; photodiodes that receive light transmitted through the random optical filter array; an AD conversion unit that converts the light received by the photodiodes, into digital data; and a color image generation circuit that generates an image, using the digital data and modulation information of the random optical filter array, in which the scattering unit is located between the plurality of types of optical filters and the photodiodes, and in which the scattering unit includes a material having a first refractive index, and a material having a second refractive index that is different from the first refractive index.
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公开(公告)号：US10110808B2
公开(公告)日：2018-10-23
申请号：US15418143
申请日：2017-01-27
Inventor： Satoshi Sato , Takeo Azuma , Hiroyuki Motoyama , Jun Ozawa
Abstract: In an imaging device, a difference calculation unit calculates a differential signal between charge signals that have been accumulated and are held by first and charge holding units with different timings. A multiple sampling unit performs multiple sampling processing on the differential signal, and an analog digital conversion unit converts a signal that has undergone multiple sampling processing to a digital signal. That is, multiple sampling processing is performed on a differential signal with a higher sparisty than that of an image signal.
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23.发明授权公开(公告)号：US09866779B2
公开(公告)日：2018-01-09
申请号：US14963001
申请日：2015-12-08
Inventor： Satoshi Sato , Takeo Azuma , Kunio Nobori , Mikiya Nakata
IPC: H04N5/378 , H04N19/122 , H04N19/13 , H04N19/80 , H04N5/355 , H04N5/357 , H04N5/374 , H04N5/3745 , H04N5/335 , H04N5/347 , H04N19/60
CPC classification number: H04N5/378 , H04N5/335 , H04N5/347 , H04N5/3559 , H04N5/357 , H04N5/3742 , H04N5/37455 , H04N19/122 , H04N19/13 , H04N19/60 , H04N19/80
Abstract: An imaging apparatus includes a photoelectric converter that converts light signals generated from light received by three or more pixels into electric charge signals, each of the electric charge signals corresponding to one of the three or more pixels; an electric charge holder that holds the electric charge signals; an analog selective adder that generates added electric charge signals by adding electric charge signals of certain pixels among the three or more pixels by using analog addition patterns which are rules of adding pieces of electric charge information corresponding to individual positions of the certain pixels; an analog-to-digital converter that converts the added electric charge signals into digital signals; and an addition data compressor that compresses the digital signals by using a total number of pixels for which pieces of electric charge information are added in the analog addition patterns and thereby generates compressed digital signals.
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24.发明授权Image capturing system, image capturing apparatus, decoding apparatus, image capturing method, and display control system 有权图像捕获系统，图像捕获装置，解码装置，图像捕获方法和显示控制系统公开(公告)号：US09479787B2
公开(公告)日：2016-10-25
申请号：US14510121
申请日：2014-10-09
Inventor： Satoshi Sato , Takeo Azuma , Jun Ozawa
IPC: H04N5/232 , H04N19/192 , H04N19/172 , H04N19/60 , H04N19/12 , H04N19/136
CPC classification number: H04N19/192 , H04N19/12 , H04N19/136 , H04N19/172 , H04N19/60
Abstract: An image capturing system includes a photoelectric conversion unit, a charge holding unit, a multiple sampling information setting unit, a multiple sampling unit, a conversion unit, and an image reconstruction unit. The photoelectric conversion unit converts optical signals received by a plurality of pixels to electric signals. The charge holding unit stores the electric signals and holds the electric signals as charge signals. The multiple sampling information setting unit sets multiple sampling information used for a multiple sampling process. The multiple sampling information includes first multiple sampling information and second multiple sampling information. The multiple sampling unit performs the multiple sampling process using the multiple sampling information and the charge signals so as to output signals. The conversion unit converts the output signals to digital signals. The image reconstruction unit generates reconstructed images using the digital signals and the multiple sampling information, and outputs the reconstructed images.
Abstract translation: 图像拍摄系统包括光电转换单元，电荷保持单元，多采样信息设置单元，多采样单元，转换单元和图像重建单元。 光电转换单元将由多个像素接收的光信号转换为电信号。 电荷保持单元存储电信号并保持电信号作为充电信号。 多个采样信息设置单元设置用于多次采样处理的多个采样信息。 多个采样信息包括第一多个采样信息和第二多个采样信息。 多采样单元使用多个采样信息和充电信号执行多次采样处理，以输出信号。 转换单元将输出信号转换为数字信号。 图像重建单元使用数字信号和多个采样信息生成重建图像，并且输出重构图像。
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公开(公告)号：US12146955B2
公开(公告)日：2024-11-19
申请号：US17171934
申请日：2021-02-09
Inventor： Yumiko Kato , Satoshi Sato , Yasuhisa Inada , Yoshihide Sawada
IPC: G01C3/08 , G01S7/4912 , G01S17/18
Abstract: A range-information acquiring apparatus includes a light source, an image sensor, a control circuit, and a signal processing circuit. The control circuit causes the light source to emit first light toward a scene and subsequently emit second light toward the scene, the first light having a first spatial distribution, the second light having a second spatial distribution. The control circuit causes at least a portion of plural photodetector elements of the photodetector device to detect first reflected light and second reflected light in the same exposure period, the first reflected light being caused by reflection of the first light from the scene, the second reflected light being caused by reflection of the second light from the scene. The signal processing circuit generates range data based on photodetection data output from the photodetector elements of the photodetector device.
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Patent Agency Ranking
公开(公告)号：US11758247B2
公开(公告)日：2023-09-12
申请号：US17154533
申请日：2021-01-21
Inventor： Takeo Azuma , Satoshi Sato , Nobuhiko Wakai , Kohsuke Yoshioka , Noritaka Shimizu , Yoshinao Kawai , Takaaki Amada , Yoko Kawai , Takeshi Murai , Hiroki Takeuchi
IPC: G06T7/521 , H04N23/11 , H04N13/271 , G01S17/10 , G01S17/89
CPC classification number: H04N23/11 , G01S17/10 , G01S17/89 , G06T7/521 , H04N13/271 , G06T2207/10028
Abstract: A depth acquisition device includes memory and processor performing: acquiring, from the memory, intensities of infrared light emitted from a light source and measured by imaging with the infrared light reflected on a subject by pixels in an imaging element; generating a depth image by calculating a distance to the subject as a depth for each pixel based on an intensity received by the pixel; acquiring, from the memory, a visible light image generated by imaging, with visible light, a substantially same scene with a substantially same viewpoint and at a substantially same timing as those of imaging the infrared light image; detecting, from the visible light image, an edge region including an edge along a direction perpendicular to a direction of movement of the visible light image; and correcting, in the depth image, a depth of a target region corresponding to the edge region in the depth image.
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公开(公告)号：US11514595B2
公开(公告)日：2022-11-29
申请号：US17157175
申请日：2021-01-25
Inventor： Satoshi Sato , Takeo Azuma , Nobuhiko Wakai , Kohsuke Yoshioka , Noritaka Shimizu , Yoshinao Kawai , Takaaki Amada , Yoko Kawai , Takeshi Murai , Hiroki Takeuchi
Abstract: A depth acquisition device includes a memory and a processor. The processor performs; acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring an infrared light image stored in the memory, the infrared light image being generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring a visible light image stored in the memory, the visible light image being generated by imaging a substantially same scene as that of the infrared light image, with visible light from a substantially same viewpoint and at a substantially same imaging time of those of the infrared light image; detecting a dust region showing dust from the infrared light image; and estimating a depth of the dust region based on the infrared light image, the visible light image, and the dust region.
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28.发明授权公开(公告)号：US11373324B2
公开(公告)日：2022-06-28
申请号：US17152231
申请日：2021-01-19
Inventor： Takeo Azuma , Satoshi Sato , Nobuhiko Wakai , Kohsuke Yoshioka , Noritaka Shimizu , Yoshinao Kawai , Takaaki Amada , Yoko Kawai , Takeshi Murai , Hiroki Takeuchi
Abstract: A depth acquisition device includes a memory and a processor performing: acquiring, from the memory, intensities of infrared light measured by imaging with infrared light emitted from a light source and reflected on a subject by pixels in an imaging element; generating a depth image by calculating the distance for each pixel based on the intensities; acquiring, from the memory, a visible light image generated by imaging, with visible light, the substantially same scene from the substantially same viewpoint at the substantially same timing as those of the infrared light image; detecting a lower reflection region showing an object having a lower reflectivity from the infrared light image in accordance with the infrared light image and the visible light image; correcting a corresponding lower reflection region in the depth image in accordance with the visible light image; and outputting the depth image with the corrected lower reflection region.
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公开(公告)号：US11195061B2
公开(公告)日：2021-12-07
申请号：US16415002
申请日：2019-05-17
Inventor： Satoshi Sato , Masahiko Saito , Takeo Azuma , Kunio Nobori , Nobuhiko Wakai
Abstract: An image generation apparatus includes a processing circuit and a memory storing at least one computational image. The at least one computational image is a light-field image, a compressive sensing image, or a coded image. The processing circuit (a1) identifies a position of an object in the at least one computational image using a classification device, (a2) generates, using the at least one computational image, a display image in which an indication for highlighting the position of the object is superimposed, and (a3) outputs the display image.
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公开(公告)号：US10769814B2
公开(公告)日：2020-09-08
申请号：US16242291
申请日：2019-01-08
Inventor： Nobuhiko Wakai , Kunio Nobori , Takeo Azuma , Satoshi Sato , Ayako Maruyama , Mikiya Nakata
IPC: G06T7/80 , G01B21/04 , G01B11/24 , H04N13/246 , H04N13/239 , H04N5/232
Abstract: Provided are: a point group obtainer that obtains three-dimensional point group data indicating three-dimensional locations of each of a plurality of three-dimensional points included in an imaging space of one or more cameras; a camera parameter calculator that (i) obtains corresponding points, for each of the plurality of three-dimensional points, in individual images captured using the one or more cameras, based on the three-dimensional point group data and an initial camera parameter of each camera, and (ii) calculates a camera parameter of each camera on the basis of the initial camera parameter of each camera and pixel values, included in the individual images, at the corresponding points; and a camera parameter outputter that outputs the calculated camera parameter of each camera.
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