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公开(公告)号：US20150130972A1
公开(公告)日：2015-05-14
申请号：US14076665
申请日：2013-11-11
Applicant: OmniVision Technologies, Inc.
Inventor： Chengming Liu , Jizhang Shan , Donghui Wu , Xiaoyong Wang , Changmeng Liu
CPC classification number: H04N5/3572
Abstract: A CMOS imaging system is capable of self-calibrating to correct for lens shading by use of images captured in the normal environment of use, apart from a production calibration facility.
Abstract translation: CMOS成像系统能够通过使用在正常使用环境中捕获的图像来校正透镜阴影，除了生产校准设备之外。
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2.发明申请公开(公告)号：US20150002629A1
公开(公告)日：2015-01-01
申请号：US13932736
申请日：2013-07-01
Applicant: OmniVision Technologies, Inc.
Inventor： Hui Wei , Changmeng Liu
CPC classification number: H04N13/207 , H04N9/045 , H04N13/254 , H04N13/257 , H04N2209/045
Abstract: An imaging system and method for generating a three-dimensional color image include an opening for allowing light from an object to enter the imaging system. Each sensor element in an array of sensor elements receives a portion of the light and generates a signal indicative of an intensity of the received portion of the light. Light from an optical element impinges on a filter comprising a plurality of filter regions, each filter region passes a predetermined band of wavelengths of the light and is associated with and disposed in alignment with one of the sensor elements such that light passing through each filter region impinges on the sensor associated and in alignment with the filter element. At least one of the filter regions is constructed to pass a visible color band, and at least one other of the filter regions is constructed to pass an infrared band.
Abstract translation: 用于产生三维彩色图像的成像系统和方法包括用于允许来自物体的光进入成像系统的开口。 传感器元件阵列中的每个传感器元件接收光的一部分并且产生指示所接收的光的部分的强度的信号。 来自光学元件的光照射在包括多个滤光器区域的滤光器上，每个滤光区域通过光的预定波长带，并且与传感器元件之一相关联并且与之对准，使得穿过每个滤光区域的光 碰撞在传感器上并与过滤器元件对准。 滤波器区域中的至少一个被构造成通过可见色带，并且构造滤光器区域中的至少另一个以通过红外波段。
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公开(公告)号：US10148936B2
公开(公告)日：2018-12-04
申请号：US13932736
申请日：2013-07-01
Applicant: OmniVision Technologies, Inc.
Inventor： Hui Wei , Changmeng Liu
IPC: H04N13/02 , H04N9/07 , H04N13/207 , H04N13/254 , H04N9/04 , H04N13/257
Abstract: An imaging system and method for generating a three-dimensional color image include an opening for allowing light from an object to enter the imaging system. Each sensor element in an array of sensor elements receives a portion of the light and generates a signal indicative of an intensity of the received portion of the light. Light from an optical element impinges on a filter comprising a plurality of filter regions, each filter region passes a predetermined band of wavelengths of the light and is associated with and disposed in alignment with one of the sensor elements such that light passing through each filter region impinges on the sensor associated and in alignment with the filter element. At least one of the filter regions is constructed to pass a visible color band, and at least one other of the filter regions is constructed to pass an infrared band.
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Patent Agency Ranking
公开(公告)号：US09307215B1
公开(公告)日：2016-04-05
申请号：US14577313
申请日：2014-12-19
Applicant: OmniVision Technologies, Inc.
Inventor： Changmeng Liu , Chengming Liu , Jizhang Shan
CPC classification number: H04N9/735
Abstract: A system for brightness-sensitive automatic white balancing of an electronic color image includes a processor and a memory with (a) brightness-specific color-weighting maps each specifying illuminant-specific auto white balance parameters, (b) brightness range definitions respectively indicating applicability range of the brightness-specific color-weighting maps, and (c) instructions for white balancing the electronic color image according to scene brightness and based upon the brightness-specific color-weighting maps. A system for adaptive automatic white balancing of an electronic color image includes a processor and a memory having (a) a color-weighting map specifying a probability distribution of color ratios defining auto white balance parameters, the probability distribution composed of a plurality of illuminant-specific probability distributions respectively associated with a plurality of different spectral types of illuminant, and (b) instructions for processing one or more electronic color images to refine at least one of the plurality of illuminant-specific probability distributions.
Abstract translation: 用于电子彩色图像的亮度自动白平衡的系统包括处理器和存储器，其具有（a）亮度特定的颜色加权，每个指定特定照明特定的自动白平衡参数，（b）分别指示适用性的亮度范围定义 亮度特定颜色加权映射的范围，以及（c）根据场景亮度和基于亮度特定颜色加权映射来平衡电子彩色图像的指令。 一种用于电子彩色图像的自适应自动白平衡的系统包括处理器和存储器，所述存储器具有（a）颜色加权映射，其指定定义自动白平衡参数的颜色比率的概率分布，所述概率分布由多个光源 - 分别与多个不同光谱类型的光源相关联的特定概率分布，以及（b）用于处理一个或多个电子彩色图像以提炼多个光源特定概率分布中的至少一个的指令。
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公开(公告)号：US09307214B1
公开(公告)日：2016-04-05
申请号：US14577242
申请日：2014-12-19
Applicant: OmniVision Technologies, Inc.
Inventor： Changmeng Liu , Chengming Liu , Jizhang Shan
CPC classification number: H04N9/735 , G06K9/4652
Abstract: A brightness-sensitive automatic white balance method includes (a) determining the brightness of a scene captured in an electronic color image, (b) selecting a color-weighting map based upon the brightness of the scene, (c) extracting auto white balance parameters from the color-weighting map, and (d) white balancing the electronic color image according to the auto white balance parameters. An adaptive automatic white balance method includes (a) refining, based upon a first electronic color image of a scene illuminated by an illuminant of a first spectral type, a color-weighting probability distribution for the illuminant of the first spectral type, wherein the color-weighting probability distribution may be brightness-specific, (b) extracting auto white balance parameters from the refined color-weighting probability distribution, and (c) white balancing, according to the auto white balance parameters, an electronic color image of a scene illuminated by the illuminant of the first spectral type.
Abstract translation: 亮度自动白平衡方法包括：（a）确定在电子彩色图像中拍摄的场景的亮度，（b）基于场景的亮度选择颜色加权图，（c）提取自动白平衡参数 （d）根据自动白平衡参数对电子彩色图像进行白平衡。 自适应自动白平衡方法包括：（a）基于由第一光谱类型的光源照射的场景的第一电子彩色图像来精炼用于第一光谱类型的光源的颜色加权概率分布，其中颜色 - 加权概率分布可以是亮度特定的，（b）从精确的颜色加权概率分布中提取自动白平衡参数，以及（c）根据自动白平衡参数的白平衡照明的场景的电子彩色图像 由第一光谱类型的光源。
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6.发明授权公开(公告)号：US09270866B2
公开(公告)日：2016-02-23
申请号：US14210337
申请日：2014-03-13
Applicant: OmniVision Technologies, Inc.
Inventor： Changmeng Liu
CPC classification number: H04N1/6077 , H04N9/735
Abstract: A method for calibrating auto white balancing in an electronic camera includes (a) obtaining a plurality of color values from a respective plurality of images of real-life scenes captured by the electronic camera under a first illuminant, (b) invoking an assumption about a true color value of at least portions of the real-life scenes, and (c) determining, based upon the difference between the true color value and the average of the color values, a plurality of final auto white balance parameters for a respective plurality of illuminants including the first illuminant. An electronic camera device includes an image sensor for capturing real-life images of real-life scenes, instructions including a partly calibrated auto white balance parameter set and auto white balance self-training instructions, and a processor for processing the real-life images according to the self-training instructions to produce a fully calibrated auto white balance parameter set specific to the electronic camera.
Abstract translation: 一种用于在电子照相机中校准自动白平衡的方法包括（a）从第一光源下的电子照相机拍摄的现实生活场景的相应多个图像中获得多个颜色值，（b）调用关于 至少部分现实生活场景的真实颜色值，以及（c）根据真实颜色值与颜色值的平均值之间的差异确定多个最终自动白平衡参数 包括第一光源的发光体。 电子照相机装置包括用于捕获现实生活场景的现实生活中的图像的图像传感器，包括部分校准的自动白平衡参数集和自动白平衡自训练指令的指令，以及用于处理现实生活中的图像的处理器， 到自学习指令，以产生专用于电子照相机的完全校准的自动白平衡参数。
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公开(公告)号：US08854709B1
公开(公告)日：2014-10-07
申请号：US13890106
申请日：2013-05-08
Applicant: OmniVision Technologies, Inc.
Inventor： Chengming Liu , Changmeng Liu , Jizhang Shan
CPC classification number: H04N9/73 , H04N1/407 , H04N1/6077 , H04N9/735
Abstract: A method of white balancing an image includes mapping pixels of the image to a color space diagram. Each of the pixels of the image include a red (“R”), a green (“G”), and a blue (“B”) subvalue. A first central tendency of each of the RGB subvalues of pixels mapped in a first pre-defined region of the color space diagram is determined and a second central tendency of each of the RGB subvalues of pixels mapped in a second pre-defined region of the color space diagram is determined. The first pre-defined region is associated with a first illuminating source and the second pre-defined region is associated with a second illuminating source. RGB values of a white pixel are generated based on the first and second central tendencies.
Abstract translation: 白平衡图像的方法包括将图像的像素映射到颜色空间图。 图像的每个像素包括红色（“R”），绿色（“G”）和蓝色（“B”）子值。 确定映射在彩色空间图的第一预定义区域中的每个像素的RGB子值的第一集中趋势，并且映射到第二预定义区域中的每个像素的RGB子值的第二集中趋势 颜色空间图确定。 第一预定义区域与第一照明源相关联，并且第二预定义区域与第二照明源相关联。 基于第一和第二中心倾向生成白色像素的RGB值。
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8.发明申请公开(公告)号：US20140267782A1
公开(公告)日：2014-09-18
申请号：US14210337
申请日：2014-03-13
Applicant: OmniVision Technologies, Inc.
Inventor： Changmeng Liu
IPC: H04N1/60
CPC classification number: H04N1/6077 , H04N9/735
Abstract: A method for calibrating auto white balancing in an electronic camera includes (a) obtaining a plurality of color values from a respective plurality of images of real-life scenes captured by the electronic camera under a first illuminant, (b) invoking an assumption about a true color value of at least portions of the real-life scenes, and (c) determining, based upon the difference between the true color value and the average of the color values, a plurality of final auto white balance parameters for a respective plurality of illuminants including the first illuminant. An electronic camera device includes an image sensor for capturing real-life images of real-life scenes, instructions including a partly calibrated auto white balance parameter set and auto white balance self-training instructions, and a processor for processing the real-life images according to the self-training instructions to produce a fully calibrated auto white balance parameter set specific to the electronic camera.
Abstract translation: 一种用于在电子照相机中校准自动白平衡的方法包括（a）从第一光源下的电子照相机拍摄的现实生活场景的相应多个图像中获得多个颜色值，（b）调用关于 至少部分现实生活场景的真实颜色值，以及（c）根据真实颜色值与颜色值的平均值之间的差异确定多个最终自动白平衡参数 包括第一光源的发光体。 电子照相机装置包括用于捕获现实生活场景的现实生活中的图像的图像传感器，包括部分校准的自动白平衡参数集和自动白平衡自训练指令的指令，以及用于处理现实生活中的图像的处理器， 到自学习指令，以产生专用于电子照相机的完全校准的自动白平衡参数。
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