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公开(公告)号:US10446600B2
公开(公告)日:2019-10-15
申请号:US15915111
申请日:2018-03-08
Inventor: Satoshi Sato , Hisashi Watanabe , Takeo Azuma , Kunio Nobori , Nobuhiko Wakai , Takamasa Ando
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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公开(公告)号:US09398273B2
公开(公告)日:2016-07-19
申请号:US14685855
申请日:2015-04-14
Inventor: Satoshi Sato , Takeo Azuma , Kunio Nobori
CPC classification number: H04N9/045 , H03M7/3062 , H04N5/374
Abstract: An imaging system includes an encoding apparatus that performs a multiple sampling process on charge signals in a plurality of wavelength bands and encodes image information and a decoding apparatus that decodes the image information. In the multiple sampling process, the charge signals of pixels in a pixel group having a predetermined arrangement pattern are analog-summed and the sum is converted into a new digital signal. The encoding apparatus performs the multiple sampling process on charge signals in at least two of the wavelength bands and outputs a digital image signal in each of the wavelength band. The at least two pixel groups have different arrangement patterns, and combinations of the arrangement patterns for all the wavelength bands differ from one another. The decoding apparatus generates a reconstructed image from the digital image signals in the wavelength bands using multiple sampling information and outputs the image.
Abstract translation: 成像系统包括对多个波长带中的电荷信号进行多次采样处理并对图像信息进行编码的编码装置和对图像信息进行解码的解码装置。 在多次采样处理中,具有预定布置图案的像素组中的像素的电荷信号被模拟相加,并且该和被转换成新的数字信号。 编码装置对至少两个波长带中的电荷信号执行多次采样处理,并输出每个波长带中的数字图像信号。 至少两个像素组具有不同的布置图案,并且用于所有波长带的布置图案的组合彼此不同。 解码装置使用多个采样信息从波长带的数字图像信号中生成重构图像,并输出该图像。
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33.
公开(公告)号:US20240373125A1
公开(公告)日:2024-11-07
申请号:US18771035
申请日:2024-07-12
Inventor: Shunsuke YASUGI , Satoshi Sato , Kunio Nobori
IPC: H04N23/60 , G06F21/84 , G06V40/16 , H04N23/611 , H04N23/95
Abstract: An image capturing terminal includes an image acquisition part that acquires an image obtained through image capturing by an image capturing part, a concealment degree calculation part that calculates a concealment degree of the image, a concealment degree determination part that determines whether the concealment degree is equal to or less than a threshold value, and an output part that outputs alert information to notify that the concealment degree is declining when the concealment degree is equal to or less than a threshold value.
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公开(公告)号:US11138887B2
公开(公告)日:2021-10-05
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:US11006081B2
公开(公告)日:2021-05-11
申请号:US16932270
申请日:2020-07-17
Inventor: Norihiro Imamura , Tsuguhiro Korenaga , Kunio Nobori , Takeo Azuma , Kazufumi Mizusawa
Abstract: An imaging apparatus in an embodiment includes lens optical systems each including a lens whose surface closest to the target object is shaped to be convex toward the target object, imaging regions which respectively face the lens optical systems and output a photoelectrically converted signal corresponding to an amount of light transmitting the lens optical systems and received by the imaging regions, and a light-transmissive cover which covers an exposed portion of the lens of each of the lens optical systems and a portion between the lens of one of the lens optical systems and the lens of another one of the lens optical systems adjacent to the one of the lens optical systems, the cover having a curved portion which is convex toward the target object. The optical axes of the lens optical systems are parallel to each other.
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公开(公告)号:US10885668B2
公开(公告)日:2021-01-05
申请号:US16458489
申请日:2019-07-01
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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公开(公告)号:US10812691B2
公开(公告)日:2020-10-20
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 , H04N5/232 , G03B37/00 , G03B19/07 , G03B15/00 , H04N13/00
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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38.
公开(公告)号:US10484665B2
公开(公告)日:2019-11-19
申请号:US15952298
申请日:2018-04-13
Inventor: Kunio Nobori , Nobuhiko Wakai , Satoshi Sato , Takeo Azuma
IPC: H04N13/246 , G06T7/80 , H04N13/239 , H04N17/00
Abstract: A camera parameter set calculation method includes acquiring a first image from a first camera, a second image from a second camera, first and second camera parameter sets of the first camera and the second camera, calculating three-dimensional coordinate sets on the basis of the first image, the second image, the first camera parameter set, and the second camera parameter set, determining first pixel coordinate pairs obtained by projecting the three-dimensional coordinate sets onto the first image and second pixel coordinate pairs obtained by projecting the three-dimensional coordinate sets onto the second image, calculating an evaluation value on the basis of the pixel values at the first pixel coordinate pairs and the pixel values at the second pixel coordinate pairs, and updating the first camera parameter set and the second camera parameter set on a basis of the evaluation value.
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公开(公告)号:US10388030B2
公开(公告)日:2019-08-20
申请号:US15803784
申请日:2017-11-05
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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公开(公告)号:US10237519B2
公开(公告)日:2019-03-19
申请号:US15226759
申请日:2016-08-02
Inventor: Satoshi Sato , Kunio Nobori , Takamasa Ando , Takeo Azuma , Nobuhiko Wakai
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.
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