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公开(公告)号：US20150049215A1
公开(公告)日：2015-02-19
申请号：US13968092
申请日：2013-08-15
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Jiangtao Kuang , Donghui Wu , Jizhang Shan
CPC classification number: H04N5/2355 , G06T5/002 , G06T5/40 , G06T2207/20208 , H04N5/2353 , H04N5/35581
Abstract: A method determines a pixel value in a high dynamic range image from two images of different brightness by obtaining corresponding input pixel intensities from the two images, determining combination weights, and calculating the pixel value in the high dynamic range image as a weighted average of the input pixel intensities. Another method determines a pixel value in a high dynamic range image from more than two images by forming pairs of corresponding input pixel intensities, determining relative combination weights for the input pixels intensities for each pair, applying a normalization condition to determine absolute combination weights, and calculating the pixel value in the high dynamic range image as a weighted average of the input pixel intensities. Systems for generating high dynamic range image generation from two or more input images include a processor, a memory, a combination weight module, and a pixel value calculation module.
Abstract translation: 一种方法通过从两个图像获得相应的输入像素强度，确定组合权重，并计算高动态范围图像中的像素值，来确定来自两个不同亮度的图像的高动态范围图像中的像素值，作为加权平均值 输入像素强度。 另一种方法通过形成相应的输入像素强度对来确定来自两个以上图像的高动态范围图像中的像素值，确定每对输入像素强度的相对组合权重，应用归一化条件来确定绝对组合权重，以及 计算高动态范围图像中的像素值作为输入像素强度的加权平均值。 用于从两个或多个输入图像生成高动态范围图像生成的系统包括处理器，存储器，组合权重模块和像素值计算模块。
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公开(公告)号：US08698666B1
公开(公告)日：2014-04-15
申请号：US13633017
申请日：2012-10-01
Applicant: Omnivision Technologies, Inc.
Inventor： Guangbin Zhang , Jiangtao Kuang
Abstract: A random estimation analog-to-digital converter for converting a first analog signal into a digital signal includes a random bit generator, a digital-to-analog converter, a summer, an M-bit analog-to-digital converter, and a digital combiner. The random bit generator generates random least significant bits (LSBs) and the digital-to-analog converter then converts the random LSBs into a second analog signal. The summer subtracts the second analog signal from the first analog signal in the analog domain. The M-bit analog-to-digital converter then converts the modified first analog signal into the most significant bits (MSBs) of the digital image signal. The digital combiner combines the random LSBs with the MSBs in the digital domain to generate the digital signal. In one example, the random LSBs are extra bits that are beyond the maximum resolution of the M-bit analog-to-digital converter.
Abstract translation: 用于将第一模拟信号转换为数字信号的随机估计模数转换器包括随机位产生器，数 - 模转换器，加法器，M位模数转换器和数字 组合器 随机位发生器产生随机最低有效位（LSB），然后数模转换器将随机LSB转换为第二模拟信号。 夏季从模拟域中的第一个模拟信号中减去第二个模拟信号。 然后，M位模数转换器将经修改的第一模拟信号转换为数字图像信号的最高有效位（MSB）。 数字组合器将随机LSB与数字域中的MSB组合以产生数字信号。 在一个示例中，随机LSB是超出M位模数转换器的最大分辨率的额外位。
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公开(公告)号：US20140091201A1
公开(公告)日：2014-04-03
申请号：US13633017
申请日：2012-10-01
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Guangbin Zhang , Jiangtao Kuang
IPC: H03M1/12 , H01L27/146
Abstract: A random estimation analog-to-digital converter for converting a first analog signal into a digital signal includes a random bit generator, a digital-to-analog converter, a summer, an M-bit analog-to-digital converter, and a digital combiner. The random bit generator generates random least significant bits (LSBs) and the digital-to-analog converter then converts the random LSBs into a second analog signal. The summer subtracts the second analog signal from the first analog signal in the analog domain. The M-bit analog-to-digital converter then converts the modified first analog signal into the most significant bits (MSBs) of the digital image signal. The digital combiner combines the random LSBs with the MSBs in the digital domain to generate the digital signal. In one example, the random LSBs are extra bits that are beyond the maximum resolution of the M-bit analog-to-digital converter.
Abstract translation: 用于将第一模拟信号转换为数字信号的随机估计模数转换器包括随机位产生器，数 - 模转换器，加法器，M位模数转换器和数字 组合器 随机位发生器产生随机最低有效位（LSB），然后数模转换器将随机LSB转换为第二模拟信号。 夏季从模拟域中的第一个模拟信号中减去第二个模拟信号。 然后，M位模数转换器将经修改的第一模拟信号转换为数字图像信号的最高有效位（MSB）。 数字组合器将随机LSB与数字域中的MSB组合以产生数字信号。 在一个示例中，随机LSB是超出M位模数转换器的最大分辨率的额外位。
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4.发明授权Image data aggregating high dynamic range imaging systems and associated methods 有权图像数据聚合高动态范围成像系统及相关方法公开(公告)号：US09172869B2
公开(公告)日：2015-10-27
申请号：US14097015
申请日：2013-12-04
Applicant: OmniVision Technologies, Inc.
Inventor： Jiangtao Kuang , Jizhang Shan
CPC classification number: H04N5/23232 , H04N5/2355 , H04N5/35545 , H04N5/35563 , H04N5/35572
Abstract: An image data aggregating high dynamic range imaging system includes an image sensor for generating N image data sets from an array of photodiodes, where N is an integer greater than one. The image sensor is adapted to generate each of the N image data sets with a different respective exposure time duration of the array of photodiodes. The system further includes an image data aggregating module for aggregating the N image data sets to obtain a virtual long exposure image data set.
Abstract translation: 聚合高动态范围成像系统的图像数据包括用于从光电二极管阵列产生N个图像数据集的图像传感器，其中N是大于1的整数。 图像传感器适于产生具有不同的光电二极管阵列的相应曝光持续时间的N个图像数据组中的每一个。 该系统还包括图像数据聚合模块，用于聚集N个图像数据集以获得虚拟长曝光图像数据集。
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Patent Agency Ranking
公开(公告)号：US20140340553A1
公开(公告)日：2014-11-20
申请号：US14243480
申请日：2014-04-02
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Jiangtao Kuang , Donghui Wu , Chao Wang , Eiichi Funatsu
IPC: H04N5/355
CPC classification number: H04N5/35554 , H04N5/2355 , H04N5/35545 , H04N5/35563
Abstract: A method of reading pixel data from a pixel array includes exposing each one of a plurality of regions of pixels a respective exposure time. Pixel data is read from the plurality of regions of pixels. The pixel data is interpolated from a first one of the plurality of regions of pixels to determine the pixel data of the regions of pixels other than the first one of the plurality of regions of pixels to generate a first image having the first exposure time. The pixel data is interpolated from the second one of the plurality of regions of pixels to determine the pixel data of the regions of pixels other than the second one of the plurality of regions to generate a second image having the second exposure time. The images are combined to produce a high dynamic range image.
Abstract translation: 从像素阵列读取像素数据的方法包括将多个像素区域中的每一个曝光到相应的曝光时间。 从像素的多个区域读取像素数据。 从多个像素区域中的第一个像素数据插值像素数据，以确定多个像素区域中的第一像素以外的像素区域的像素数据，以产生具有第一曝光时间的第一图像。 像素数据从多个像素区域中的第二个像素内插，以确定多个区域中的第二个区域之外的像素区域的像素数据，以产生具有第二曝光时间的第二图像。 图像被组合以产生高动态范围图像。
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公开(公告)号：US09413992B2
公开(公告)日：2016-08-09
申请号：US14243480
申请日：2014-04-02
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Jiangtao Kuang , Donghui Wu , Chao Wang , Eiichi Funatsu
CPC classification number: H04N5/35554 , H04N5/2355 , H04N5/35545 , H04N5/35563
Abstract: A method of reading pixel data from a pixel array includes exposing each one of a plurality of regions of pixels a respective exposure time. Pixel data is read from the plurality of regions of pixels. The pixel data is interpolated from a first one of the plurality of regions of pixels to determine the pixel data of the regions of pixels other than the first one of the plurality of regions of pixels to generate a first image having the first exposure time. The pixel data is interpolated from the second one of the plurality of regions of pixels to determine the pixel data of the regions of pixels other than the second one of the plurality of regions to generate a second image having the second exposure time. The images are combined to produce a high dynamic range image.
Abstract translation: 从像素阵列读取像素数据的方法包括将多个像素区域中的每一个曝光到相应的曝光时间。 从像素的多个区域读取像素数据。 从多个像素区域中的第一个像素数据插值像素数据，以确定多个像素区域中的第一像素以外的像素区域的像素数据，以生成具有第一曝光时间的第一图像。 像素数据从多个像素区域中的第二个像素内插，以确定多个区域中的第二个区域之外的像素区域的像素数据，以产生具有第二曝光时间的第二图像。 图像被组合以产生高动态范围图像。
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7.发明申请Image Data Aggregating High Dynamic Range Imaging Systems And Associated Methods 有权图像数据聚合高动态范围成像系统及相关方法公开(公告)号：US20150156412A1
公开(公告)日：2015-06-04
申请号：US14097015
申请日：2013-12-04
Applicant: OmniVision Technologies, Inc.
Inventor： Jiangtao Kuang , Jizhang Shan
IPC: H04N5/232
CPC classification number: H04N5/23232 , H04N5/2355 , H04N5/35545 , H04N5/35563 , H04N5/35572
Abstract: An image data aggregating high dynamic range imaging system includes an image sensor for generating N image data sets from an array of photodiodes, where N is an integer greater than one. The image sensor is adapted to generate each of the N image data sets with a different respective exposure time duration of the array of photodiodes. The system further includes an image data aggregating module for aggregating the N image data sets to obtain a virtual long exposure image data set.
Abstract translation: 聚合高动态范围成像系统的图像数据包括用于从光电二极管阵列产生N个图像数据集的图像传感器，其中N是大于1的整数。 图像传感器适于产生具有不同的光电二极管阵列的相应曝光持续时间的N个图像数据组中的每一个。 该系统还包括图像数据聚合模块，用于聚集N个图像数据集以获得虚拟长曝光图像数据集。
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公开(公告)号：US09432589B2
公开(公告)日：2016-08-30
申请号：US13968092
申请日：2013-08-15
Applicant: OmniVision Technologies, Inc.
Inventor： Jiangtao Kuang , Donghui Wu , Jizhang Shan
CPC classification number: H04N5/2355 , G06T5/002 , G06T5/40 , G06T2207/20208 , H04N5/2353 , H04N5/35581
Abstract: A method determines a pixel value in a high dynamic range image from two images of different brightness by obtaining corresponding input pixel intensities from the two images, determining combination weights, and calculating the pixel value in the high dynamic range image as a weighted average of the input pixel intensities. Another method determines a pixel value in a high dynamic range image from more than two images by forming pairs of corresponding input pixel intensities, determining relative combination weights for the input pixels intensities for each pair, applying a normalization condition to determine absolute combination weights, and calculating the pixel value in the high dynamic range image as a weighted average of the input pixel intensities. Systems for generating high dynamic range image generation from two or more input images include a processor, a memory, a combination weight module, and a pixel value calculation module.
Abstract translation: 一种方法通过从两个图像获得相应的输入像素强度，确定组合权重，并计算高动态范围图像中的像素值，来确定来自两个不同亮度的图像的高动态范围图像中的像素值，作为加权平均值 输入像素强度。 另一种方法通过形成相应的输入像素强度对来确定来自两个以上图像的高动态范围图像中的像素值，确定每对输入像素强度的相对组合权重，应用归一化条件来确定绝对组合权重，以及 计算高动态范围图像中的像素值作为输入像素强度的加权平均值。 用于从两个或多个输入图像生成高动态范围图像生成的系统包括处理器，存储器，组合权重模块和像素值计算模块。
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公开(公告)号：US20140118572A1
公开(公告)日：2014-05-01
申请号：US14148078
申请日：2014-01-06
Applicant: OmniVision Technologies, Inc.
Inventor： Jiangtao Kuang , Donghui Wu , Jizhang Shan
IPC: H04N9/04 , H01L27/146
CPC classification number: H04N9/045 , H01L27/14625 , H04N5/343 , H04N2209/045
Abstract: An image sensor includes an array of light sensitive elements and a filter array. Each filter element is in optical communication with a respective light sensitive element. The image sensor receives filtered light having a repeating pattern. Light sensitive elements in at least two successive rows alternately receive light having a first color and a second color, and light sensitive elements in common columns of the successive rows alternately receive light having the first color and the second color. Light sensitive elements in at least two additional successive rows alternately receive light having a third and a fourth color, and light sensitive elements in common columns of the additional successive rows alternately receive light having the third color and the fourth color. Output values of pairs of sampled light sensitive elements receiving light of a common color and from successive rows are combined to generate a down-sampled image.
Abstract translation: 图像传感器包括光敏元件阵列和滤光片阵列。 每个滤光元件与相应的光敏元件光学连通。 图像传感器接收具有重复图案的滤波光。 在至少两个连续行中的感光元件交替地接收具有第一颜色和第二颜色的光，并且连续行的公共列中的光敏元件交替地接收具有第一颜色和第二颜色的光。 在至少两个附加连续行中的感光元件交替地接收具有第三和第四颜色的光，并且附加连续行的公共列中的光敏元件交替地接收具有第三颜色和第四颜色的光。 接收公共颜色光和连续行的采样光敏元件对的输出值被组合以产生下采样图像。
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