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1.发明申请公开(公告)号：US20190028632A1
公开(公告)日：2019-01-24
申请号：US16031465
申请日：2018-07-10
Inventor： KUNIO NOBORI , NOBUHIKO WAKAI , SATOSHI SATO , TAKEO AZUMA
IPC: H04N5/232 , H04N13/122 , G06T7/70 , G06K9/00
Abstract: A camera parameter set calculation apparatus calculates three-dimensional coordinate sets based on a first image obtained by a first camera mounted on a mobile apparatus, a second image obtained by a second camera arranged on or in an object different from the mobile apparatus, a camera parameter set of the first camera, and a camera parameter set of the second camera, determines first pixel coordinate pairs obtained by projecting the three-dimensional coordinate sets onto the first image based on the first camera parameter set and second pixel coordinate pairs obtained by projecting the three-dimensional coordinate sets onto the second image based on the second camera parameter set, calculates an evaluation value based on pixel values at the first pixel coordinate pairs and pixel values at the second pixel coordinate pairs, and updates the camera parameter set of the first camera based on the evaluation value.
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公开(公告)号：US20170223324A1
公开(公告)日：2017-08-03
申请号：US15413749
申请日：2017-01-24
Inventor： SATOSHI SATO , KUNIO NOBORI , TAKEO AZUMA , AYAKO MARUYAMA , NOBUHIKO WAKAI
CPC classification number: G06T3/4015 , H04N5/335 , H04N9/045
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：US20190230264A1
公开(公告)日：2019-07-25
申请号：US16374641
申请日：2019-04-03
Inventor： NOBUHIKO WAKAI , TAKEO AZUMA , KUNIO NOBORI , SATOSHI SATO
IPC: H04N5/225 , H04N13/204 , H04N13/128
Abstract: An image capturing apparatus includes a first camera that captures a first image, a second camera that captures a second image, a lens cover that includes transparent parts and ridgelines and that covers the first camera and the second camera, and a processing circuit that identifies a pixel located in an area, in which it is necessary to interpolate a pixel value, in the first image, and generates an output image using the first image and interpolation pixel information for interpolating a pixel value of the identified pixel. Each ridgeline between adjacent parts of the lens cover is twisted with respect to a base line extending between a center of a first lens of the first camera and a center of a second lens of the second camera. An upper part of the lens cover opposes a base on which the first camera and the second camera are disposed.
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4.发明申请公开(公告)号：US20180068462A1
公开(公告)日：2018-03-08
申请号：US15687761
申请日：2017-08-28
Inventor： NOBUHIKO WAKAI , KUNIO NOBORI , TAKEO AZUMA , SATOSHI SATO , AYAKO MARUYAMA , MIKIYA NAKATA
IPC: G06T7/80
CPC classification number: G06T7/80 , G01B11/24 , G01B21/042 , G06T2207/10024 , G06T2207/30244 , H04N5/23216 , H04N13/239 , H04N13/246
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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5.发明申请IMAGING APPARATUS, IMAGING SYSTEM, IMAGE GENERATION APPARATUS, AND COLOR FILTER 审中-公开成像装置，成像系统，图像发生装置和彩色滤光片公开(公告)号：US20170070709A1
公开(公告)日：2017-03-09
申请号：US15226759
申请日：2016-08-02
Inventor： SATOSHI SATO , KUNIO NOBORI , TAKAMASA ANDO , TAKEO AZUMA , NOBUHIKO WAKAI
CPC classification number: H04N9/045 , H04N5/23203 , H04N2209/046
Abstract: An imaging apparatus includes an image-forming optical system that forms an image by using optical signals; an imaging device that includes a plurality of pixels, receives, with the plurality of pixels, the optical signals used to form the image, and converts the optical signals into electric signals; and a color filter that is located between the image-forming optical system and the imaging device and has a light transmittance which differs according to positions on the color filter corresponding to the plurality of pixels and according to a plurality of wavelength bands.
Abstract translation: 成像装置包括通过使用光信号形成图像的图像形成光学系统; 包括多个像素的成像装置，与所述多个像素接收用于形成图像的光信号，并将所述光信号转换为电信号; 以及位于图像形成光学系统和成像装置之间并且具有根据与多个像素对应的滤色器上的位置并根据多个波长带而不同的透光率的滤色器。
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Patent Agency Ranking
公开(公告)号：US20180316907A1
公开(公告)日：2018-11-01
申请号：US15960983
申请日：2018-04-24
Inventor： TAKEO AZUMA , NOBUHIKO WAKAI , KUNIO NOBORI , SATOSHI SATO
IPC: H04N13/271 , H04N13/243
CPC classification number: H04N13/271 , H04N13/239 , H04N13/243 , H04N2013/0081
Abstract: An image capturing apparatus: calculates, for each of pairs of images, based on the pairs of images and camera parameters, position information including information specifying a three-dimensional position of a measurement point with respect to a pair of pixels respectively included in the pair of images, and information specifying a position of each of the pair of pixels; performs, based on the position information and the camera parameters, weighted addition on the information specifying the three-dimensional position of the measurement point in each of the pair of images, with information using an effective baseline length or a viewing angle, with respect to the three-dimensional position, of a pair of the cameras corresponding to the pair of images; and outputs position information of the measurement point to which a weighted addition value is applied.
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7.发明申请公开(公告)号：US20180316906A1
公开(公告)日：2018-11-01
申请号：US15961041
申请日：2018-04-24
Inventor： KUNIO NOBORI , NOBUHIKO WAKAI , SATOSHI SATO , TAKEO AZUMA , MIKIYA NAKATA
IPC: H04N13/246 , H04N13/275 , G06K9/00 , G06T7/80
Abstract: A camera parameter set calculation apparatus calculates three-dimensional coordinate sets corresponding to overlapping regions including images of a portion of a subject, based on a first and second images captured by a first and second cameras, a first camera parameter set of the first camera and a second camera parameter set of the second camera; determines first pixel coordinate pairs based on the first camera parameter set by projecting the three-dimensional coordinate sets on the first image; determines second pixel coordinate pairs based on the second camera parameter set by projecting the three-dimensional coordinate sets on the second image; calculates an evaluation value, based on pixel values at the first pixel coordinate pairs on the first image and pixel values at the second pixel coordinate pairs on the second image; and updates the first and second camera parameter sets based on the evaluation value.
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8.发明申请公开(公告)号：US20180316905A1
公开(公告)日：2018-11-01
申请号：US15961011
申请日：2018-04-24
Inventor： KUNIO NOBORI , NOBUHIKO WAKAI , SATOSHI SATO , TAKEO AZUMA , MIKIYA NAKATA
IPC: H04N13/246 , H04N5/232 , G06T7/80 , G06T7/73
CPC classification number: H04N13/246 , B60R1/00 , B60R2300/301 , B60R2300/303 , B60R2300/307 , B60R2300/607 , G06T7/73 , G06T7/85 , G06T2207/10012 , G06T2207/10024 , G06T2207/30208 , G06T2207/30264 , H04N5/23216 , H04N5/23238 , H04N13/239 , H04N13/243
Abstract: A camera parameter set calculation method including (a1) acquiring a first image captured by a first camera and a second image captured by a second camera, (a2) acquiring camera parameter sets of the first and second cameras, (a3) extracting, from the first image, a predetermined portion having assumed three-dimensional position information, (a4) calculating three-dimensional coordinate sets corresponding to the predetermined portion on a basis of the assumed three-dimensional position information, the first image, and the first camera parameter set, (a5) determining first pixel coordinate pairs and second pixel coordinate pairs corresponding to the predetermined portion in the first image and second image, respectively, on the basis of the three-dimensional coordinate sets, (a6) calculating an evaluation value on the basis of pixel values at the first pixel coordinate pairs and pixel values at the second coordinate pairs, (a7) updating the camera parameter sets on the basis of the evaluation value.
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公开(公告)号：US20180300900A1
公开(公告)日：2018-10-18
申请号：US15950216
申请日：2018-04-11
Inventor： NOBUHIKO WAKAI , TAKEO AZUMA , KUNIO NOBORI , SATOSHI SATO
Abstract: A camera calibration method which calculates camera parameters of at least three cameras (a1) acquires three-dimensional coordinate set of a calibration point and image coordinate pair of the calibration point in each camera image, (a2) acquires camera parameters of each camera, (a3) calculates a view angle-corresponding length corresponding to a view angle of each pair of cameras viewing the calibration point, (a4) calculates a three-dimensional position of a measurement point corresponding to a three-dimensional position of the calibration point for each camera pair using parallax of the calibration point between the cameras in the camera pair, (a5) weights the three-dimensional position of each measurement point using the view angle-corresponding length corresponding to the measurement point, (a6) calculates a three-dimensional position of a unified point of the weighted measurement points, and (a7) updates the camera parameters based on the three-dimensional coordinate set of the calibration point and the three-dimensional position of the unified point.
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公开(公告)号：US20180286906A1
公开(公告)日：2018-10-04
申请号：US15915111
申请日：2018-03-08
Inventor： SATOSHI SATO , HISASHI WATANABE , TAKEO AZUMA , KUNIO NOBORI , NOBUHIKO WAKAI , TAKAMASA ANDO
CPC classification number: H01L27/14627 , G06T3/4015 , H01L27/14621 , H01L27/14645 , H04N5/2254 , H04N5/3696 , H04N9/045 , H04N9/04555 , H04N9/04557 , H04N9/65 , H04N9/67 , H04N2209/045
Abstract: An imaging system serving as an image generation device is provided with: a random color filter array that has a plurality of concave lenses and a plurality of color filters having different transmission characteristics; a photodiode that receives light that has passed through the random color filter array; an AD converter that converts the light received by the photodiode into digital data; and a color image generation circuit that generates an image using the digital data and modulation information of the random color filter array, in which the plurality of concave lenses are located between the plurality of color filters and the photodiode, or the plurality of color filters are located between the plurality of concave lenses and the photodiode.
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