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21.发明授权公开(公告)号：US10602125B2
公开(公告)日：2020-03-24
申请号：US15693915
申请日：2017-09-01
Inventor： Kunio Nobori , Nobuhiko Wakai , Takeo Azuma , Satoshi Sato , Ayako Maruyama , Mikiya Nakata
IPC: H04N13/246 , H04N13/243 , H04N13/00
Abstract: A camera-parameter-set calculation apparatus includes a three-dimensional point group calculator that calculates a plurality of three-dimensional coordinates, based on first and second images respectively captured by first and second cameras and first and second camera parameter sets of the first and second cameras; an evaluation value calculator that determines a plurality of pixel coordinates in the second image, based on the plurality of three-dimensional coordinates and the second camera parameter set, determines a plurality of third pixel coordinates in a third image captured by a third camera, based on the plurality of three-dimensional coordinates and a third camera parameter set of the third camera, and calculates an evaluation value, based on pixel values at the plurality of second and third pixel coordinates in the second and third images; and a camera-parameter-set determiner that determines a fourth camera parameter set for the third camera, based on the evaluation value.
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公开(公告)号：US10271058B2
公开(公告)日：2019-04-23
申请号：US15612427
申请日：2017-06-02
Inventor： Satoshi Sato , Kunio Nobori , Takeo Azuma , Ayako Maruyama , Nobuhiko Wakai
IPC: G06T3/40 , H04N1/41 , H04N1/64 , H04N9/04 , H04N19/186
Abstract: An imaging apparatus includes an imaging optical system that forms an optical signal, an imaging device that includes a plurality of pixels and that converts the optical signal formed on the plurality of pixels into an electrical signal, a color filter that is arranged between the imaging optical system and the imaging device and that has a different optical transmittance for each of the plurality of pixels and each of a plurality of wavelength ranges, and a transmission data compression circuit that compresses the electrical signal obtained by the imaging device. The sum of products of an optical transmittance group relating to a plurality of optical transmittances of the color filter for each of the plurality of pixels in the plurality of wavelength ranges and coefficients common to the plurality of pixels is the same between the plurality of pixels.
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公开(公告)号：US10032253B2
公开(公告)日：2018-07-24
申请号：US15413749
申请日：2017-01-24
Inventor： Satoshi Sato , Kunio Nobori , Takeo Azuma , Ayako Maruyama , Nobuhiko Wakai
Abstract: An imaging apparatus includes an optical imaging system that converges light from an object; an imaging device that includes a plurality of pixels, receives the converged light, and converts the received light to an electric signal; a filter unit that is disposed between the optical imaging system and the imaging device and includes a plurality of color filters having different light transmission rate characteristics; and a transmission data compressing circuit that codes the electric signal. An overall light transmission rate characteristic of the filter unit differs randomly in different pixels of the imaging device, and the transmission data compressing circuit weights and codes the electric signal of each of the pixels by using a reciprocal of a proportion of the overall light transmission rate characteristic of the filter unit corresponding to each of the plurality of pixels of the imaging device relative to a wavelength characteristic common among the pixels.
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公开(公告)号：US11948462B2
公开(公告)日：2024-04-02
申请号：US18110462
申请日：2023-02-16
Inventor： Ayako Maruyama , Kunio Nobori , Takeo Azuma , Satoshi Sato , Nobuhiko Wakai
CPC classification number: G08G1/166 , B60R1/003 , G01S13/931 , G06T5/005 , G06T7/70 , G06T11/00 , G08G1/165 , H04N7/181 , B60R2300/105 , B60R2300/303 , G06T2207/30252
Abstract: An image generating apparatus generates an image to be displayed on a display and includes at least one memory and a control circuit. The control circuit acquires a plurality of camera images captured by a plurality of cameras installed in a vehicle, calculates a distance between one of the cameras and a target to be projected in in the camera images, detects a position of a light-transmissive object or a reflective object in the camera images, and generates an image from a point of view that is different from points of view of the plurality of camera images by using the plurality of camera images and the distance, the generated image including a predetermined image that is displayed at the position of the light-transmissive object or the reflective object.
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公开(公告)号：US11636615B2
公开(公告)日：2023-04-25
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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Patent Agency Ranking
公开(公告)号：US11615709B2
公开(公告)日：2023-03-28
申请号：US17462310
申请日：2021-08-31
Inventor： Ayako Maruyama , Kunio Nobori , Takeo Azuma , Satoshi Sato , Nobuhiko Wakai
Abstract: An image generating apparatus generates an image to be displayed on a display and includes at least one memory and a control circuit. The control circuit acquires a plurality of camera images captured by a plurality of cameras installed in a vehicle, calculates a distance between one of the cameras and a target to be projected in in the camera images, detects a position of a light-transmissive object or a reflective object in the camera images, and generates an image from a point of view that is different from points of view of the plurality of camera images by using the plurality of camera images and the distance, the generated image including a predetermined image that is displayed at the position of the light-transmissive object or the reflective object.
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27.发明授权公开(公告)号：US11233983B2
公开(公告)日：2022-01-25
申请号：US16782239
申请日：2020-02-05
Inventor： Kunio Nobori , Nobuhiko Wakai , Takeo Azuma , Satoshi Sato , Ayako Maruyama , Mikiya Nakata
IPC: H04N13/246 , H04N13/243 , H04N13/00
Abstract: A camera-parameter-set calculation apparatus includes a three-dimensional point group calculator that calculates a plurality of three-dimensional coordinates, based on first and second images respectively captured by first and second cameras and first and second camera parameter sets of the first and second cameras; an evaluation value calculator that determines a plurality of pixel coordinates in the second image, based on the plurality of three-dimensional coordinates and the second camera parameter set, determines a plurality of third pixel coordinates in a third image captured by a third camera, based on the plurality of three-dimensional coordinates and a third camera parameter set of the third camera, and calculates an evaluation value, based on pixel values at the plurality of second and third pixel coordinates in the second and third images; and a camera-parameter-set determiner that determines a fourth camera parameter set for the third camera, based on the evaluation value.
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公开(公告)号：US11183067B2
公开(公告)日：2021-11-23
申请号：US16795740
申请日：2020-02-20
Inventor： Ayako Maruyama , Kunio Nobori , Takeo Azuma , Satoshi Sato , Nobuhiko Wakai
Abstract: An image generating apparatus generates an image to be displayed on a display and includes at least one memory and a control circuit. The control circuit acquires a plurality of camera images captured by a plurality of cameras installed in a vehicle, calculates a distance between one of the cameras and a target to be projected in in the camera images, detects a position of a light-transmissive object or a reflective object in the camera images, and generates an image from a point of view that is different from points of view of the plurality of camera images by using the plurality of camera images and the distance, the generated image including a predetermined image that is displayed at the position of the light-transmissive object or the reflective object.
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公开(公告)号：US11056001B2
公开(公告)日：2021-07-06
申请号：US15608021
申请日：2017-05-30
Inventor： Ayako Maruyama , Kunio Nobori , Takeo Azuma , Satoshi Sato , Nobuhiko Wakai
Abstract: An image generating apparatus generates an image to be displayed on a display and includes at least one memory and a control circuit. The control circuit acquires a plurality of camera images captured by a plurality of cameras installed in a vehicle, calculates a distance between one of the cameras and a target to be projected in the camera images, detects a position of a light-transmissive object or a reflective object in the camera images, and generates an image from a point of view that is different from points of view of the plurality of camera images by using the plurality of camera images and the distance, the generated image including a predetermined image that is displayed at the position of the light-transmissive object or the reflective object.
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公开(公告)号：US10687052B2
公开(公告)日：2020-06-16
申请号：US15961026
申请日：2018-04-24
Inventor： Nobuhiko Wakai , Takeo Azuma , Kunio Nobori , Satoshi Sato , Mikiya Nakata
IPC: H04N7/18 , H04N17/00 , G06T7/80 , H04N13/246 , H04N13/239
Abstract: Three-dimensional point group data indicating three-dimensional coordinate sets of three-dimensional points included in a common imaging space of one or more cameras is received, one or more images captured by the one or more cameras are transmitted, the one or more transmitted images are received, initial camera parameters of each cameras are decided based on one or more mounting locations and one or more directions of the cameras, corresponding points in the one or more images are calculated for each of the three-dimensional points, based on the three-dimensional point group data and the initial camera parameters, and one or more camera parameters of the one or more cameras are calculated based on pixel values at the corresponding points in the one or more images.
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