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公开(公告)号：US20230215029A1
公开(公告)日：2023-07-06
申请号：US18119443
申请日：2023-03-09
Inventor： Satoshi SATO , Takeo AZUMA , Nobuhiko WAKAI , Kohsuke YOSHIOKA , Noritaka SHIMIZU , Yoshinao KAWAI , Takaaki AMADA , Yoko KAWAI , Takeshi MURAI , Hiroki TAKEUCHI
CPC classification number: G06T7/55 , G06T7/521 , G01S17/48 , G06T2207/10028 , G06T2207/10048
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, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.
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公开(公告)号：US20210144314A1
公开(公告)日：2021-05-13
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: H04N5/33 , H04N13/271 , G01S17/89 , G01S17/10 , G06T7/521
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：US20210118179A1
公开(公告)日：2021-04-22
申请号：US17113425
申请日：2020-12-07
Inventor： Nobuhiko WAKAI , Takeo AZUMA , Kunio NOBORI , Satoshi SATO , Ayako MARUYAMA
Abstract: A crossing point detector includes memory and a crossing point detection unit that reads out a square image from a captured image in the memory, and detects a crossing point of two boundary lines in a checker pattern depicted in the square image. The crossing point detection unit decides multiple parameters of a function model treating two-dimensional image coordinates as variables, the parameters optimizing an evaluation value based on a difference between corresponding pixel values represented by the function model and the square image, respectively, and computes the position of a crossing point of two straight lines expressed by the decided multiple parameters to thereby detect the crossing point with subpixel precision. The function model uses a curved surface that is at least first-order differentiable to express pixel values at respective positions in a two-dimensional coordinate system at the boundary between black and white regions.
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4.发明申请公开(公告)号：US20200045299A1
公开(公告)日：2020-02-06
申请号：US16597382
申请日：2019-10-09
Inventor： Kunio NOBORI , Satoshi SATO , Takeo AZUMA , Takamasa ANDO , Tsuguhiro KORENAGA , Toshiya FUJII
IPC: H04N13/282 , G02B27/46 , H04N13/218 , G02B23/02 , H04N13/271 , H04N13/106 , H04N13/189 , H04N13/207 , G06T7/11 , G06T7/70
Abstract: An imaging apparatus includes an imaging device, a first imaging optical system and a second imaging optical system that form respective input images from mutually different viewpoints onto the imaging device, and a first modulation mask and a second modulation mask that modulate the input images formed by the first imaging optical system and the second imaging optical system. The imaging device captures a superposed image composed of the two input images that have been formed by the first imaging optical system and the second imaging optical system, modulated by the first modulation mask and the second modulation mask, and optically superposed on each other, and the first modulation mask and the second modulation mask have mutually different optical transmittance distribution characteristics.
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公开(公告)号：US20190073535A1
公开(公告)日：2019-03-07
申请号：US16174688
申请日：2018-10-30
Inventor： Kunio NOBORI , Satoshi SATO , Takeo AZUMA
IPC: G06K9/00 , G06T7/593 , H04N5/232 , H04N13/243
Abstract: There is provided an image capturing apparatus that captures a plurality of images, calculates a three-dimensional position from the plurality of images, and outputs the plurality of images and information about the three-dimensional position. The image capturing apparatus includes an image capturing unit, a camera parameter storage unit, a position calculation unit, a position selection unit, and an image complementing unit. The image capturing unit outputs the plurality of images using at least three cameras. The camera parameter storage unit stores in advance camera parameters including occlusion information. The position calculation unit calculates three dimensional positions of a plurality of points. The position selection unit selects a piece of position information relating to a subject area that does not have an occlusion, and outputs selected position information. The image complementing unit generates a complementary image, and outputs the complementary image and the selected position information.
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Patent Agency Ranking
公开(公告)号：US20240007727A1
公开(公告)日：2024-01-04
申请号：US18226418
申请日：2023-07-26
Inventor： Takeo AZUMA , Satoshi SATO , Nobuhiko WAKAI , Kohsuke YOSHIOKA , Noritaka SHIMIZU , Yoshinao KAWAI , Takaaki AMADA , Yoko KAWAI , Takeshi MURAI , Hiroki TAKEUCHI
IPC: H04N23/11 , G06T7/521 , H04N13/271 , G01S17/10 , G01S17/89
CPC classification number: H04N23/11 , G06T7/521 , H04N13/271 , G01S17/10 , G01S17/89 , 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：US20210120165A1
公开(公告)日：2021-04-22
申请号：US17136722
申请日：2020-12-29
Inventor： Kunio NOBORI , Satoshi SATO , Takeo AZUMA , Nobuhiko WAKAI , Mitsuru HARADA , Shinichi MACHIDA , Masumi IZUCHI
Abstract: An image generation device includes: a voltage generator that generates a plurality of voltages each having a different voltage value; an image capturer that includes an organic photoconductive film, and performs imaging every time each of the plurality of voltages is applied; a luminance data obtainer that obtains a plurality of luminance data items corresponding to the plurality of voltages applied, each of the plurality of luminance data items being obtained from the imaging performed by the image capturer; and a color image generator that generates a color image based on the plurality of luminance data items.
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公开(公告)号：US20210150742A1
公开(公告)日：2021-05-20
申请号：US17161060
申请日：2021-01-28
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, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.
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公开(公告)号：US20170201679A1
公开(公告)日：2017-07-13
申请号：US15418143
申请日：2017-01-27
Inventor： Satoshi SATO , Takeo AZUMA , Hiroyuki MOTOYAMA , Jun OZAWA
CPC classification number: H04N5/23229 , G09G2340/02 , G09G2370/18 , H04N5/232 , H04N5/347 , H04N5/357 , H04N5/374 , H04N5/378
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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公开(公告)号：US20240303845A1
公开(公告)日：2024-09-12
申请号：US18668586
申请日：2024-05-20
Inventor： Satoshi SATO , Takeo AZUMA , Nobuhiko WAKAI , Kohsuke YOSHIOKA , Noritaka SHIMIZU , Yoshinao KAWAI , Takaaki AMADA , Yoko KAWAI , Takeshi MURAI , Hiroki TAKEUCHI
CPC classification number: G06T7/55 , G01S17/48 , G06T7/521 , G06T2207/10028 , G06T2207/10048
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, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.
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