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41.发明申请公开(公告)号：US20200280667A1
公开(公告)日：2020-09-03
申请号：US16879260
申请日：2020-05-20
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
Abstract: With respect to a subject included in an image, the illuminating condition by an ambient light source in an environment where the image was captured is estimated, and based on the estimation result, the effect of a virtual light source that was non-existent at the time of image capture is computed. More specifically, the effect of the virtual light source is computed using an illumination direction of the virtual light source and the reflective characteristics of the subject illuminated by the virtual light source, which have been determined based on the estimation result, and an image derived from addition of the effect of the virtual light source is output.
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公开(公告)号：US10440339B2
公开(公告)日：2019-10-08
申请号：US15693069
申请日：2017-08-31
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
IPC: H04N5/235 , H04N9/64 , G06T5/00 , G06T7/90 , G06T5/20 , H04N9/04 , G06T5/50 , H04N9/73 , G06K9/00 , H04N9/68 , H04N9/77
Abstract: A reflection correction processing unit extracts at least color information from a peripheral area of a processing target pixel having a high luminance in an input image, and performs control, to the processing target pixel, to reduce the luminance of the processing target pixel and to bring a chrominance signal of the processing target pixel close to a predetermined chrominance signal ratio. In a case where a chrominance signal ratio based on the color information is close to the predetermined chrominance signal ratio, the reflection correction processing unit increases an intensity of the correction to the processing target pixel.
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公开(公告)号：US10009588B2
公开(公告)日：2018-06-26
申请号：US15104910
申请日：2014-12-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
IPC: H04N9/73 , H04N5/228 , H04N9/69 , G09G5/02 , H04N5/202 , H04N1/60 , H04N5/04 , H04N5/372 , H04N5/374
CPC classification number: H04N9/69 , G09G5/02 , G09G2320/0276 , H04N1/6027 , H04N5/04 , H04N5/202 , H04N5/372 , H04N5/374 , H04N2201/3228 , H04N2201/3256 , H04N2209/04
Abstract: To allow re-producing, in another image processing apparatus, contents of image processing in an image processing apparatus, a provisional color grading apparatus 300 determines normalizing points (CodeValues that serve as references for normalizing) of input image signals according to format information and normalizes the input image signals. The provisional color grading apparatus 300 records values (normalizing information) obtained by converting the normalizing points into numerical values independent of devices, in association with parameters of color grading.
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公开(公告)号：US09936141B2
公开(公告)日：2018-04-03
申请号：US14927634
申请日：2015-10-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
CPC classification number: H04N5/2351 , G01N2021/8838 , G06T5/008 , H04N5/2354 , H04N5/2621
Abstract: The amount of light to be emitted by an auxiliary light source for capturing an image to which correction processing is applied, as well as a parameter used in the correction processing, is determined based on a degree of shadows of an object to be captured using the auxiliary light source. In this way, shadows in an image obtained through image capture using the auxiliary light source can be appropriately corrected with a simple method.
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公开(公告)号：US20170244882A1
公开(公告)日：2017-08-24
申请号：US15432412
申请日：2017-02-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
CPC classification number: H04N5/2352 , G06K9/00248 , G06K9/4604 , G06K9/4652 , G06K9/4661 , G06K9/52 , G06K9/6267 , G06K2009/4666 , H04N5/2354 , H04N5/2621
Abstract: With respect to a subject included in an image, the illuminating condition by an ambient light source in an environment where the image was captured is estimated, and based on the estimation result, the effect of a virtual light source that was non-existent at the time of image capture is computed. More specifically, the effect of the virtual light source is computed using an illumination direction of the virtual light source and the reflective characteristics of the subject illuminated by the virtual light source, which have been determined based on the estimation result, and an image derived from addition of the effect of the virtual light source is output.
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Patent Agency Ranking
公开(公告)号：US09602709B2
公开(公告)日：2017-03-21
申请号：US14141967
申请日：2013-12-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
CPC classification number: H04N5/23206 , G11B27/3027 , H04N9/67
Abstract: A control method of an image pickup apparatus has: an output step of outputting a photographed image to an external image processing apparatus; a transmission step of transmitting a transmission request of parameter information of an image processing to the photographed image which is generated by the external image processing apparatus, to the external image processing apparatus; a receiving step of receiving the parameter information from the external image processing apparatus; a recording step of recording the received parameter information in relation the photographed image; a detection step of detecting an operation in the image pickup apparatus; and a control step of executing a processing for transmitting the transmission request of the parameter information to the external image processing apparatus in the transmission step when the predetermined operation is detected in the detection step.
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公开(公告)号：US09129188B2
公开(公告)日：2015-09-08
申请号：US13922552
申请日：2013-06-20
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tetsuya Hata , Kotaro Kitajima
CPC classification number: G06K9/4652 , G06K9/4642 , G06K9/4661 , G06T7/90 , G06T2207/10024 , H04N1/6086
Abstract: An image processing apparatus, which correctly extracts specular reflected light components of reflected light from an object, and accurately estimates a light source color, is provided. The image processing apparatus calculates a pixel value difference distribution by repeating, for respective pixels, to calculate pixel value differences between a pixel of interest and adjacent pixels in an input image and to calculate similarities between pixel value differences. A light source estimation unit estimates a color of a light source which illuminates an object in the input image based on the calculated distribution.
Abstract translation: 提供一种图像处理装置，其正确地提取来自物体的反射光的镜面反射光分量，并且准确地估计光源颜色。 图像处理装置通过针对各个像素重复计算输入图像中的感兴趣像素和相邻像素之间的像素值差异并计算像素值差异之间的相似度来计算像素值差分布。 光源估计单元基于所计算的分布来估计照亮输入图像中的对象的光源的颜色。
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公开(公告)号：US20150172617A1
公开(公告)日：2015-06-18
申请号：US14629976
申请日：2015-02-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
Abstract: An image processing apparatus is provided that allows accurate white balance gains to be obtained by accurately estimating the illuminant colors of various objects in an image. The white balance gains are obtained based on values of white pixels that have been extracted from an input image and have colors included in an extraction range, and the white balance gains are obtained based on specular reflection components included in the input image, are mixed in accordance with a mix ratio. The mix ratio is determined in accordance with, for example, a degree of reliability of extraction of the white pixels.
Abstract translation: 提供一种图像处理装置，其通过精确估计图像中的各种物体的光源颜色来获得准确的白平衡增益。 基于从输入图像提取并且包括在提取范围中的颜色并且基于输入图像中包括的镜面反射分量获得的白平衡增益的白色像素的值被获得白平衡增益， 按照混合比例。 混合比根据例如提取白色像素的可靠度而确定。
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公开(公告)号：US08983204B2
公开(公告)日：2015-03-17
申请号：US13680651
申请日：2012-11-19
Applicant: Canon Kabushiki Kaisha
Inventor： Kotaro Kitajima
CPC classification number: G06K9/4604 , G06T5/003 , G06T7/13 , G06T2207/10024 , G06T2207/20021 , G06T2207/20192
Abstract: A production unit of an image processing apparatus produces a contour signal of an image including a specific subject. A detection unit detects, on the basis of the contour signal, a representative contour direction for each of a plurality of division regions of the image, where the detection unit detects a specific direction as the representative contour direction when the direction of the entire contour portion included in the division regions is biased in the specific direction by at least a specific degree. A determination unit determines a type of the subject on the basis of at least one of a direction-based frequency distribution of the detected representative contour directions, a number of representative contour directions detected, etc. A correction unit configured to correct the image data according to a correction method corresponding to the type of the subject.
Abstract translation: 图像处理装置的生产单元产生包括特定对象的图像的轮廓信号。 检测单元基于轮廓信号检测图像的多个分割区域中的每一个的代表轮廓方向，其中检测单元检测到特定方向作为代表性轮廓方向，当轮廓部分的整体方向 包含在划分区域中的区域在特定方向上至少具有特定的程度。 确定单元基于检测到的代表性轮廓方向的基于方向的频率分布，检测到的代表轮廓方向的数量等中的至少一个来确定被摄体的类型。一种校正单元，被配置为根据 涉及与对象的类型对应的校正方法。
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50.发明申请IMAGE CAPTURING APPARATUS, IMAGE PROCESSING APPARATUS, AND CONTROL METHOD THEREFOR 审中-公开图像捕获设备，图像处理设备及其控制方法公开(公告)号：US20140147090A1
公开(公告)日：2014-05-29
申请号：US14088943
申请日：2013-11-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kotaro Kitajima
IPC: H04N5/77
CPC classification number: H04N5/772 , H04N9/8042 , H04N9/8205
Abstract: An image capturing apparatus comprises: an image sensor that senses an image and outputs image data; a processing unit that performs image processing on the image data based on first processing information that is based on an instruction from a user; an obtainment unit that obtains comparison information based on a comparison between the first processing information and second processing information for putting the image data into a predetermined standard state through the image processing; and a recording unit that records the comparison information obtained by the obtainment unit in association with the image data.
Abstract translation: 一种摄像装置，包括：感测图像并输出图像数据的图像传感器; 处理单元，其基于基于来自用户的指示的第一处理信息，对所述图像数据进行图像处理; 获取单元，其基于通过图像处理将图像数据放入预定标准状态的第一处理信息和第二处理信息之间的比较获得比较信息; 以及记录单元，其记录由获取单元获取的与图像数据相关联的比较信息。
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