公开(公告)号：US09177983B2

公开(公告)日：2015-11-03

申请号：US13356333

申请日：2012-01-23

Applicant: Jiangtao Kuang ,  Donghui Wu ,  Tiejun Dai ,  Jizhang Shan

Inventor： Jiangtao Kuang ,  Donghui Wu ,  Tiejun Dai ,  Jizhang Shan

IPC: H04N13/02 ,  H01L27/146 ,  H04N5/369

CPC classification number: H01L27/14621 ,  H01L27/14627 ,  H04N5/3696 ,  H04N13/207 ,  H04N13/218 ,  H04N13/257

Abstract: An image sensor for three-dimensional (“3D”) imaging includes a first, a second, and a third pixel unit, where the second pixel unit is disposed between the first and third pixel units. Optical filters included in the pixel units are disposed on a light incident side of the image sensor to filter polarization-encoded light having a first polarization and a second polarization to photosensing regions of the pixel units. The first pixel unit includes a first optical filter having the first polarization, the second pixel unit includes a second optical filter having the second polarization, and the third pixel unit includes a third optical filter having the first polarization.

Abstract translation: 用于三维（“3D”）成像的图像传感器包括第一，第二和第三像素单元，其中第二像素单元设置在第一和第三像素单元之间。 包含在像素单元中的光学滤波器设置在图像传感器的光入射侧，以将具有第一偏振和第二偏振的偏振编码光滤除成像素单元的光敏区域。 第一像素单元包括具有第一偏振的第一滤光器，第二像素单元包括具有第二偏振的第二滤光器，第三像素单元包括具有第一偏振的第三滤光器。

公开(公告)号：US20130188023A1

公开(公告)日：2013-07-25

申请号：US13356333

申请日：2012-01-23

Applicant: Jiangtao Kuang ,  Donghui Wu ,  Tiejun Dai ,  Jizhang Shan

Inventor： Jiangtao Kuang ,  Donghui Wu ,  Tiejun Dai ,  Jizhang Shan

IPC: H04N13/02 ,  G02B27/26

CPC classification number: H01L27/14621 ,  H01L27/14627 ,  H04N5/3696 ,  H04N13/207 ,  H04N13/218 ,  H04N13/257

Abstract: An image sensor for three-dimensional (“3D”) imaging includes a first, a second, and a third pixel unit, where the second pixel unit is disposed between the first and third pixel units. Optical filters included in the pixel units are disposed on a light incident side of the image sensor to filter polarization-encoded light having a first polarization and a second polarization to photosensing regions of the pixel units. The first pixel unit includes a first optical filter having the first polarization, the second pixel unit includes a second optical filter having the second polarization, and the third pixel unit includes a third optical filter having the first polarization.

Abstract translation: 用于三维（“3D”）成像的图像传感器包括第一，第二和第三像素单元，其中第二像素单元设置在第一和第三像素单元之间。 包含在像素单元中的光学滤波器设置在图像传感器的光入射侧，以将具有第一偏振和第二偏振的偏振编码光滤除成像素单元的光敏区域。 第一像素单元包括具有第一偏振的第一滤光器，第二像素单元包括具有第二偏振的第二滤光器，第三像素单元包括具有第一偏振的第三滤光器。

公开(公告)号：US20110279705A1

公开(公告)日：2011-11-17

申请号：US13035785

申请日：2011-02-25

Applicant: Jiangtao Kuang ,  Donghui Wu ,  Jizhang Shan

Inventor： Jiangtao Kuang ,  Donghui Wu ,  Jizhang Shan

IPC: H04N5/235 ,  H04N5/335 ,  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。

公开(公告)号：US08624997B2

公开(公告)日：2014-01-07

申请号：US13035785

申请日：2011-02-25

Applicant: Jiangtao Kuang ,  Donghui Wu ,  Jizhang Shan

Inventor： Jiangtao Kuang ,  Donghui Wu ,  Jizhang Shan

IPC: H04N5/235 ,  H04N3/14

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。

公开(公告)号：US20090109306A1

公开(公告)日：2009-04-30

申请号：US11925608

申请日：2007-10-26

Applicant: Jizhang Shan ,  Jiangtao Kuang

Inventor： Jizhang Shan ,  Jiangtao Kuang

IPC: H04N5/335 ,  H04N9/04 ,  H04N5/235 ,  H04N1/46 ,  G03B7/00 ,  H04N3/14 ,  H04N9/083

CPC classification number: H04N5/235 ,  H04N5/347 ,  H04N5/3535 ,  H04N5/35509 ,  H04N5/35545 ,  H04N5/35554 ,  H04N5/35572 ,  H04N9/045

Abstract: An image sensor has an array of pixels organized into a row and column format. Pixels are read out in a line-by-line sequence and buffered in a line image buffer. An extended dynamic range is supported by varying a column exposure time according to a periodic sequence. As a result, the pixel exposure times vary within each row. A high dynamic range is generated by combining pixel data of adjacent pixels within the same row that are of the same filter type but having different exposure times. Color interpolation is performed on the combined line data.

Abstract translation: 图像传感器具有组织成行和列格式的像素阵列。 以逐行序列读出像素，并将其缓冲在行图像缓冲区中。 通过根据周期性序列改变列曝光时间来支持扩展动态范围。 结果，像素曝光时间在每行内变化。 通过组合具有相同滤波器类型但具有不同曝光时间的相同行内的相邻像素的像素数据来产生高动态范围。 对组合的线数据执行彩色插值。

公开(公告)号：US07777804B2

公开(公告)日：2010-08-17

申请号：US11925608

申请日：2007-10-26

Applicant: Jizhang Shan ,  Jiangtao Kuang

Inventor： Jizhang Shan ,  Jiangtao Kuang

IPC: H04N5/235 ,  H04N9/083 ,  H01L27/00

CPC classification number: H04N5/235 ,  H04N5/347 ,  H04N5/3535 ,  H04N5/35509 ,  H04N5/35545 ,  H04N5/35554 ,  H04N5/35572 ,  H04N9/045

Abstract: An image sensor has an array of pixels organized into a row and column format. Pixels are read out in a line-by-line sequence and buffered in a line image buffer. An extended dynamic range is supported by varying a column exposure time according to a periodic sequence. As a result, the pixel exposure times vary within each row. A high dynamic range is generated by combining pixel data of adjacent pixels within the same row that are of the same filter type but having different exposure times. Color interpolation is performed on the combined line data.

Abstract translation: 图像传感器具有组织成行和列格式的像素阵列。 以逐行序列读出像素，并将其缓冲在行图像缓冲区中。 通过根据周期性序列改变列曝光时间来支持扩展动态范围。 结果，像素曝光时间在每行内变化。 通过组合具有相同滤波器类型但具有不同曝光时间的相同行内的相邻像素的像素数据来产生高动态范围。 对组合的线数据执行彩色插值。

公开(公告)号：US20090309995A1

公开(公告)日：2009-12-17

申请号：US12137467

申请日：2008-06-11

Applicant: Weihua Xiong ,  Jiangtao Kuang

Inventor： Weihua Xiong ,  Jiangtao Kuang

IPC: H04N9/73

CPC classification number: H04N9/735

Abstract: The specification disclosed embodiments of an apparatus comprising an automatic white balance (AWB) circuit coupled to a pixel array to transform red, green, and blue color data obtained from each pixel into x and y chromaticity values for each pixel, determine a distance between the Planckian locus and the x and y chromaticity values for each pixel, determine a weight for each pixel based on the distance between its x and y chromaticity values and the Planckian locus, determine red, green, and blue adjustments for each pixel using its weight, and apply a white balance adjustment to the red, green and blue values obtained from each pixel. Other embodiments are also disclosed and claimed.

Abstract translation: 说明书公开了一种装置的实施例，其包括耦合到像素阵列的自动白平衡（AWB）电路，以将从每个像素获得的红，绿和蓝色数据转换为每个像素的x和y色度值，确定 普朗克轨迹和每个像素的x和y色度值根据其x和y色度值与普朗克轨迹之间的距离确定每个像素的权重，使用其重量确定每个像素的红，绿和蓝调整， 并对从每个像素获得的红色，绿色和蓝色值应用白平衡调整。 还公开并要求保护其他实施例。

公开(公告)号：US08233098B2

公开(公告)日：2012-07-31

申请号：US12515041

申请日：2007-11-16

Applicant: Remco Theodorus Johannes Muijs ,  Jiangtao Kuang

Inventor： Remco Theodorus Johannes Muijs ,  Jiangtao Kuang

IPC: H04N9/30

CPC classification number: H04N1/6058

Abstract: A system (600) for performing gamut compression or gamut extension by transforming an input color (608) of an input image defined within a first gamut (102) into a reproduction color (610) of an output image for rendering by a reproduction device capable of rendering colors within a second gamut (104) different from the first gamut. The input color has an input chromaticity (C1) and an input lightness (Z-*) together forming an input point (202) in a chromaticity-lightness plane. The reproduction color has a reproduction point (210) in the chromaticity-lightness plane, wherein an absolute difference between the input lightness and the output lightness is a decreasing function of at least the chromaticity. An absolute difference between the input chromaticity and the output chromaticity is an increasing function of at least the chromaticity.

Abstract translation: 一种用于通过将在第一色域（102）中定义的输入图像的输入颜色（608）变换为输出图像的再现颜色（610）来进行色域压缩或色域扩展的系统（600），用于由能够再现的再现设备呈现 在与第一色域不同的第二色域（104）内渲染颜色。 输入颜色具有输入色度（C1）和输入亮度（Z- *），一起在色度平面中形成输入点（202）。 再现颜色在色度平面中具有再现点（210），其中输入亮度和输出亮度之间的绝对差是至少色度的递减函数。 输入色度和输出色度之间的绝对差是至少色度的增加函数。

公开(公告)号：US08013907B2

公开(公告)日：2011-09-06

申请号：US12099351

申请日：2008-04-08

Applicant: Jiangtao Kuang ,  Weihua Xiong

Inventor： Jiangtao Kuang ,  Weihua Xiong

IPC: H04N9/73

CPC classification number: H04N9/735

Abstract: The disclosure describes embodiments of an apparatus comprising an image sensor including a pixel array having a plurality of pixels and an automatic white balance (AWB) circuit coupled to the pixel array. The AWB circuit is used to determine a local white balance component for each pixel, determine a global white balance component for each pixel, and apply a white balance adjustment to each pixel, the applied white balance adjustment comprising a combination of the local white balance component and the global white balance component. The disclosure also describes embodiment of a process including receiving image data from each pixel in a pixel array, determining a local white balance component for the image data from each pixel, determining a global white balance component for the image data from each pixel, and applying a white balance adjustment to the image data from each pixel, the applied white balance adjustment comprising a combination of the local white balance component and the global white balance component. Other embodiments are also disclosed and claimed.

Abstract translation: 本公开描述了包括包括具有多个像素的像素阵列和耦合到像素阵列的自动白平衡（AWB））电路的图像传感器的装置的实施例。 AWB电路用于确定每个像素的局部白平衡分量，确定每个像素的全局白平衡分量，并对每个像素应用白平衡调整，所应用的白平衡调整包括局部白平衡分量 和全球白平衡组件。 本公开还描述了一种处理的实施例，包括从像素阵列中的每个像素接收图像数据，从每个像素确定图像数据的局部白平衡分量，从每个像素确定图像数据的全局白平衡分量，以及应用 对来自每个像素的图像数据的白平衡调整，所应用的白平衡调整包括局部白平衡分量和全局白平衡分量的组合。 还公开并要求保护其他实施例。

公开(公告)号：US20100110312A1

公开(公告)日：2010-05-06

申请号：US12515041

申请日：2007-11-16

Applicant: Remco Theodorus Johannes Muijs ,  Jiangtao Kuang

Inventor： Remco Theodorus Johannes Muijs ,  Jiangtao Kuang

IPC: H04N9/30 ,  G06K9/00

CPC classification number: H04N1/6058

Abstract: A system (600) for performing gamut compression or gamut extension by transforming an input color (608) of an input image defined within a first gamut (102) into a reproduction color (610) of an output image for rendering by a reproduction device capable of rendering colors within a second gamut (104) different from the first gamut. The input color has an input chromaticity (C1) and an input lightness (Z-*) together forming an input point (202) in a chromaticity-lightness plane. The reproduction color has a reproduction point (210) in the chromaticity-lightness plane, wherein an absolute difference between the input lightness and the output lightness is a decreasing function of at least the chromaticity. An absolute difference between the input chromaticity and the output chromaticity is an increasing function of at least the chromaticity.

Abstract translation: 一种用于通过将在第一色域（102）中定义的输入图像的输入颜色（608）变换为输出图像的再现颜色（610）来进行色域压缩或色域扩展的系统（600），用于由能够再现的再现设备呈现 在与第一色域不同的第二色域（104）内渲染颜色。 输入颜色具有输入色度（C1）和输入亮度（Z- *），一起在色度平面中形成输入点（202）。 再现颜色在色度平面中具有再现点（210），其中输入亮度和输出亮度之间的绝对差是至少色度的递减函数。 输入色度和输出色度之间的绝对差是至少色度的增加函数。