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公开(公告)号：US10819882B2
公开(公告)日：2020-10-27
申请号：US16284888
申请日：2019-02-25
Inventor： Genki Sato , Takeshi Hamasaki , Katsuji Kunisue
Abstract: An image processing device includes: a first color conversion processor configured to perform first color conversion processing on image data; a second color conversion processor configured to perform second color conversion processing on the image data; a coefficient calculator configured to calculate a coefficient indicating a blend ratio between an output of the first color conversion processor and an output of the second color conversion processor; and a blend processor configured to blend the output of the first color conversion processor and the output of the second color conversion processor based on the ratio indicated by the coefficient, wherein the coefficient calculator calculates a position on an xy chromaticity diagram of a color indicated by each pixel in image data processed by the first color conversion processor to determine the coefficient based on a distance from the calculated position to a boundary of a color gamut.
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2.发明授权公开(公告)号：US10785420B2
公开(公告)日：2020-09-22
申请号：US16416205
申请日：2019-05-18
Inventor： Takeshi Hamasaki
Abstract: An imaging device includes: an imaging element that outputs an image signal in a nondestructive manner; an image processor that performs predetermined processing on the outputted image signal to generate image data; and a controller that controls the image processor. Under control of the controller, the image processor reads out image signals from the imaging element a plurality of times within one exposure period, calculates a target gain value based on a target level and an added signal, and multiples the added signal by the target gain value to generate the image data. The target level is calculated based on a signal level of a last read-out image signal in one exposure period. The added signal being obtained by adding up the image signals read out the plurality of times.
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公开(公告)号：US12238425B2
公开(公告)日：2025-02-25
申请号：US17798275
申请日：2020-12-25
Inventor： Norikatsu Yoshida , Takeshi Hamasaki
Abstract: A shutter speed determination device includes a motion detector and controller. The motion detector, on a block-by-block basis having a specified block size, performs detection processing of a motion vector for image data obtained by capturing a subject image. The controller, while reducing the block size, causes the motion detector to execute the detection processing repeatedly, each time executing the detection processing the controller finds a motion vector related value that changes in a same direction as a direction in which a magnitude of the motion vector changes, the controller determines a shutter speed used when capturing the subject image thereafter, based on the motion vector related value found.
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公开(公告)号：US09047665B2
公开(公告)日：2015-06-02
申请号：US14198758
申请日：2014-03-06
Inventor： Hiroaki Omayu , Taro Imagawa , Toshiyuki Nakashima , Takeshi Hamasaki , Hiroyuki Miyahara
CPC classification number: G06T5/002 , G06T2207/10024 , H04N1/58 , H04N1/6005 , H04N5/217 , H04N9/045
Abstract: An image processing apparatus comprises: a separation unit configured to separate image data into a luminance signal and a color difference signal; a decision unit configured to decide a reference pixel, which is referenced for a pixel of interest included in the image data; a luminance noise reduction unit configured to reduce luminance noise in the luminance signal of the image data; a weight calculation unit configured to calculate a weight of the reference pixel based on similarity of luminance included in the luminance signal having been subjected to noise reduction by the luminance noise reduction unit between a first area containing the pixel of interest and a second area containing the reference pixel; and a color noise reduction unit configured to reduce color noise in the color difference signal for the pixel of interest by using the weight of the reference pixel.
Abstract translation: 一种图像处理装置，包括：分离单元，被配置为将图像数据分离成亮度信号和色差信号; 判定单元，被配置为确定参考像素，所述参考像素被引用于所述图像数据中包含的关注像素; 亮度噪声降低单元，被配置为降低图像数据的亮度信号中的亮度噪声; 权重计算单元，被配置为基于在包含感兴趣像素的第一区域和包含感兴趣像素的第二区域之间的亮度噪声降低单元在已经经过降噪的亮度信号中包括的亮度的相似度来计算参考像素的权重 参考像素 以及颜色噪声降低单元，被配置为通过使用参考像素的权重来减少所述感兴趣像素的色差信号中的颜色噪声。
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