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1. 发明授权

US09264681B2 Extending image dynamic range 有权
标题翻译：扩展图像动态范围
公开(公告)号：US09264681B2
公开(公告)日：2016-02-16
申请号：US13818288
申请日：2011-08-23
申请人： Walter Gish , Zhen Li , Donald Pian , Christopher Vogt , Hyung-Suk Kim , David Ruhoff
发明人： Walter Gish , Zhen Li , Donald Pian , Christopher Vogt , Hyung-Suk Kim , David Ruhoff
IPC分类号： H04N9/67 , G09G5/02 , H04N9/68
CPC分类号： H04N9/67 , G06F3/1423 , G09G5/02 , G09G5/10 , G09G2320/0271 , G09G2320/0276 , G09G2340/06 , H04N9/12 , H04N9/68
摘要： Enhancing image dynamic range is described. An input video signal that is represented in a first color space with a first color gamut, which is related to a first dynamic range, is converted to a video signal that is represented in a second color space with a second color gamut. The second color space is associated with a second dynamic range. At least two (e.g., three) color-related components of the converted video signal are mapped over the second dynamic range.
摘要翻译：描述了增强图像动态范围。在具有与第一动态范围相关的第一色域的第一颜色空间中表示的输入视频信号被转换为在具有第二色域的第二颜色空间中表示的视频信号。第二颜色空间与第二动态范围相关联。转换的视频信号的至少两个（例如，三个）颜色相关分量被映射在第二动态范围上。

2. 发明申请

US20130148029A1 Extending Image Dynamic Range 有权
标题翻译：扩展图像动态范围
公开(公告)号：US20130148029A1
公开(公告)日：2013-06-13
申请号：US13818288
申请日：2011-08-23
申请人： Walter Gish , Zhen Li , Donald Pian , Christopher Vogt , Hyung-Suk Kim , David Ruhoff
发明人： Walter Gish , Zhen Li , Donald Pian , Christopher Vogt , Hyung-Suk Kim , David Ruhoff
IPC分类号： H04N9/67
CPC分类号： H04N9/67 , G06F3/1423 , G09G5/02 , G09G5/10 , G09G2320/0271 , G09G2320/0276 , G09G2340/06 , H04N9/12 , H04N9/68
摘要： Enhancing image dynamic range is described. An input video signal that is represented in a first color space with a first color gamut, which is related to a first dynamic range, is converted to a video signal that is represented in a second color space with a second color gamut. The second color space is associated with a second dynamic range. At least two (e.g., three) color-related components of the converted video signal are mapped over the second dynamic range.
摘要翻译：描述增强图像动态范围。在具有与第一动态范围相关的第一色域的第一颜色空间中表示的输入视频信号被转换为在具有第二色域的第二颜色空间中表示的视频信号。第二颜色空间与第二动态范围相关联。转换的视频信号的至少两个（例如，三个）颜色相关分量被映射在第二动态范围上。

3. 发明授权

US08982963B2 Compatible compression of high dynamic range, visual dynamic range, and wide color gamut video 有权
标题翻译：高动态范围，视觉动态范围和宽色域视频的兼容压缩
公开(公告)号：US08982963B2
公开(公告)日：2015-03-17
申请号：US13091311
申请日：2011-04-21
申请人： Walter Gish , Zhen Li , Christopher Vogt
发明人： Walter Gish , Zhen Li , Christopher Vogt
IPC分类号： H04N7/50 , G06T5/50 , H04N19/70 , H04N19/30 , H04N19/63 , H04N19/61 , H04N19/59 , H04N19/36
CPC分类号： G06T5/50 , G06F3/1423 , G06T2207/20208 , G09G5/10 , G09G2320/0271 , H04N19/30 , H04N19/36 , H04N19/59 , H04N19/61 , H04N19/63 , H04N19/70
摘要： A first image stream has a first dynamic range and a first color space. First and the second image streams are received in a layered codec. The second image stream has a second dynamic range, which is higher than the first dynamic range. The first image stream is in the codec's base layer; the second image stream is in its enhancement layer. The first image stream is encoded to obtain an encoded image stream, which is decoded to obtain a decoded image stream. The decoded image stream is converted from the first non-linear or linear color space to a second, different color space to obtain a color converted image stream. A higher dynamic range image representation of the color converted image stream is generated to obtain a transformed image stream. Inverse tone mapping parameters are generated based on the transformed image stream and the second image stream.
摘要翻译：第一图像流具有第一动态范围和第一颜色空间。在分层编解码器中接收第一和第二图像流。第二图像流具有高于第一动态范围的第二动态范围。第一个图像流在编解码器的基本层中; 第二图像流在其增强层中。第一图像流被编码以获得编码图像流，其被解码以获得解码图像流。解码图像流从第一非线性或线性颜色空间转换为第二不同颜色空间以获得颜色转换图像流。生成颜色转换图像流的较高动态范围图像表示以获得变换图像流。基于变换图像流和第二图像流生成逆色调映射参数。

4. 发明申请

US20110194618A1 COMPATIBLE COMPRESSION OF HIGH DYNAMIC RANGE, VISUAL DYNAMIC RANGE, AND WIDE COLOR GAMUT VIDEO 有权
标题翻译：高动态范围，视觉动态范围和宽彩色视频的兼容压缩
公开(公告)号：US20110194618A1
公开(公告)日：2011-08-11
申请号：US13091311
申请日：2011-04-21
申请人： Walter Gish , Zhen Li , Christopher Vogt
发明人： Walter Gish , Zhen Li , Christopher Vogt
IPC分类号： H04N7/26
CPC分类号： G06T5/50 , G06F3/1423 , G06T2207/20208 , G09G5/10 , G09G2320/0271 , H04N19/30 , H04N19/36 , H04N19/59 , H04N19/61 , H04N19/63 , H04N19/70
摘要： A first image stream has a first dynamic range and a first color space. First and the second image streams are received in a layered codec. The second image stream has a second dynamic range, which is higher than the first dynamic range. The first image stream is in the codec's base layer; the second image stream is in its enhancement layer. The first image stream is encoded to obtain an encoded image stream, which is decoded to obtain a decoded image stream. The decoded image stream is converted from the first non-linear or linear color space to a second, different color space to obtain a color converted image stream. A higher dynamic range image representation of the color converted image stream is generated to obtain a transformed image stream. Inverse tone mapping parameters are generated based on the transformed image stream and the second image stream.
摘要翻译：第一图像流具有第一动态范围和第一颜色空间。在分层编解码器中接收第一和第二图像流。第二图像流具有高于第一动态范围的第二动态范围。第一个图像流在编解码器的基本层中; 第二图像流在其增强层中。第一图像流被编码以获得编码图像流，其被解码以获得解码图像流。解码图像流从第一非线性或线性颜色空间转换为第二不同颜色空间以获得颜色转换图像流。生成颜色转换图像流的较高动态范围图像表示以获得变换图像流。基于变换图像流和第二图像流生成逆色调映射参数。

5. 发明申请

US20080075166A1 Unbiased Rounding for Video Compression 审中-公开
标题翻译：视频压缩的无偏差
公开(公告)号：US20080075166A1
公开(公告)日：2008-03-27
申请号：US11632365
申请日：2005-07-12
申请人： Walter Gish , Hyung-Suk Kim
发明人： Walter Gish , Hyung-Suk Kim
IPC分类号： H04N7/50
CPC分类号： H04N19/44 , H04N19/184
摘要： Unbiased rounding of unsigned data is employed in the decoding or the encoding and decoding of digital bitstreams representing data-video when the video is encoded at a first bit depth and is decoded at a second bit depth, lower than the first bit depth. The unbiased rounding may be employed in processing that employs a prediction loop. When the data-compressed video is represented in frames, the unbiased rounding may be of inter-frame and/or intra-frame data.
摘要翻译：无符号数据的无偏差舍入被用于当视频以第一比特深度编码并且以比第一比特深度低的第二比特深度进行解码时，对代表数据视频的数字比特流进行解码或编码和解码。在采用预测循环的处理中可以采用无偏差的舍入。当以帧表示数据压缩视频时，无偏置舍入可以是帧间和/或帧内数据。

6. 发明申请

US20140300752A1 Spectral Synthesis for Image Capture Device Processing 有权
标题翻译：用于图像捕获设备处理的光谱合成
公开(公告)号：US20140300752A1
公开(公告)日：2014-10-09
申请号：US14007633
申请日：2012-12-20
申请人： Walter Gish , David Ruhoff , Jon S. McElvain
发明人： Walter Gish , David Ruhoff , Jon S. McElvain
IPC分类号： H04N9/64 , H04N17/02 , H04N17/00
CPC分类号： H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
摘要： A substantially rectangular spectral representation is synthesized, which is adapted to produce image capture device sensor outputs if applied to an image capture device. The synthesized substantially rectangular spectral representation can be utilized in generating output color values of an output color space from image capture device sensor outputs, where the image capture device sensor outputs correspond to an image captured by an image capture device. The generated output color values correspond to colors perceived by the human visual system for the same image as that captured by the image capture device. Image capture device gamut is also determined.
摘要翻译：合成基本上矩形的频谱表示，其适用于在应用于图像捕获装置时产生图像捕获装置传感器输出。合成的基本上矩形的光谱表示可以用于从图像捕获装置传感器输出产生输出颜色空间的输出颜色值，其中图像捕获装置传感器输出对应于由图像捕获装置捕获的图像。生成的输出颜色值对应于由人类视觉系统感知到的与由图像捕获装置捕获的图像相同的图像的颜色。图像捕获设备色域也被确定。

7. 发明授权

US08743291B2 Quality assessment for images that have extended dynamic ranges or wide color gamuts 有权
标题翻译：具有扩展动态范围或宽色域的图像的质量评估
公开(公告)号：US08743291B2
公开(公告)日：2014-06-03
申请号：US14009773
申请日：2012-04-12
申请人： Zhen Li , Walter Gish
发明人： Zhen Li , Walter Gish
IPC分类号： H04N9/64 , H04N9/67 , H04N11/20 , G09G5/02
CPC分类号： H04N9/64 , G06T5/009 , H04N9/67 , H04N17/02
摘要： A first video signal is accessed, and represented in a first color space with a first color gamut, related to a first dynamic range. A second video signal is accessed, and represented in a second color space of a second color gamut, related to a second dynamic range. The first accessed video signal is converted to a video signal represented in the second color space. At least two color-related components of the converted video signal are mapped over the second dynamic range. The mapped video signal and the second accessed video signal are processed. Based on the processing, a difference is measured between the processed first and second video signals. A visual quality characteristic relates to a magnitude of the measured difference between the processed first and second video signals. The visual quality characteristic is assessed based, at least in part, on the measurement of the difference.
摘要翻译：访问第一视频信号，并且在与第一动态范围有关的具有第一色域的第一颜色空间中表示。访问第二视频信号，并且在与第二动态范围相关的第二色域的第二颜色空间中表示。第一访问的视频信号被转换成在第二颜色空间中表示的视频信号。经转换的视频信号的至少两个颜色相关分量被映射在第二动态范围上。处理映射的视频信号和第二被访问的视频信号。基于该处理，在经处理的第一和第二视频信号之间测量差。视觉质量特性涉及经处理的第一和第二视频信号之间的测量差异的大小。视觉质量特征至少部分地基于差异的测量来评估。

8. 发明授权

US08457208B2 Adaptive motion estimation 失效
标题翻译：自适应运动估计
公开(公告)号：US08457208B2
公开(公告)日：2013-06-04
申请号：US12746834
申请日：2008-12-19
申请人： Walter Gish , Christopher Vogt
发明人： Walter Gish , Christopher Vogt
IPC分类号： H04N7/36
CPC分类号： H04N19/577 , H04N19/51 , H04N19/587
摘要： Optimal error metric function for motion estimation is determined and used for video coding and/or video processing of images. To do so, an initial motion estimation using an initial error metric function can be performed. This can produce motion prediction errors. If the initial error metric function is not the optimal error function, then a final motion estimation is performed using a selected optimal error metric function. In some embodiments, a shape of error distribution can be used to determine the optimal error metric function. Some example systems or devices for this motion estimation can include systems or devices for compression, temporal interpolation, and/or super-resolution processing.
摘要翻译：确定运动估计的最优误差度量函数，并用于图像的视频编码和/或视频处理。为此，可以执行使用初始误差度量函数的初始运动估计。这可能会产生运动预测误差。如果初始误差度量函数不是最佳误差函数，则使用所选择的最佳误差度量函数来执行最终运动估计。在一些实施例中，可以使用错误分布的形状来确定最佳误差度量函数。用于该运动估计的一些示例性系统或装置可以包括用于压缩，时间插值和/或超分辨率处理的系统或装置。

9. 发明申请

US20060257034A1 Quantization control for variable bit depth 有权
标题翻译：可变位深度的量化控制
公开(公告)号：US20060257034A1
公开(公告)日：2006-11-16
申请号：US11128125
申请日：2005-05-11
申请人： Walter Gish , Christopher Vogt
发明人： Walter Gish , Christopher Vogt
IPC分类号： G06K9/36 , G06K9/00
CPC分类号： H04N19/124 , H04N19/126 , H04N19/184 , H04N19/61
摘要： The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth—a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP).
摘要翻译：量化参数QP在数字视频压缩中是众所周知的，作为图像质量的指示。表示运动图像的数字符号通过量化步长进行量化，该量化步骤是量化参数QP的函数QS N N，该函数QS N N已被归一化为最高有效位的数位符号的位深度。结果，给定QP的影响基本上与位深度无关 - 特定的QP值对图像质量具有标准影响，而不考虑位深度。本发明例如在不同比特深度的编码和解码中是有用的，以产生具有不同比特深度的兼容的比特流，并且通过以相同的保真度压缩每个视频信号的不同分量来允许不同的比特深度（即，相同的QP）。

10. 发明申请

US20100266041A1 ADAPTIVE MOTION ESTIMATION 失效
标题翻译：自适应运动估计
公开(公告)号：US20100266041A1
公开(公告)日：2010-10-21
申请号：US12746834
申请日：2008-12-19
申请人： Walter Gish , Christopher Vogt
发明人： Walter Gish , Christopher Vogt
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46
CPC分类号： H04N19/577 , H04N19/51 , H04N19/587
摘要： Optimal error metric function for motion estimation is determined and used for video coding and/or video processing of images. To do so, an initial motion estimation using an initial error metric function can be performed. This can produce motion prediction errors. If the initial error metric function is not the optimal error function, then a final motion estimation is performed using a selected optimal error metric function. In some embodiments, a shape of error distribution can be used to determine the optimal error metric function. Some example systems or devices for this motion estimation can include systems or devices for compression, temporal interpolation, and/or super-resolution processing.
摘要翻译：确定运动估计的最优误差度量函数，并用于图像的视频编码和/或视频处理。为此，可以执行使用初始误差度量函数的初始运动估计。这可能会产生运动预测误差。如果初始误差度量函数不是最佳误差函数，则使用所选择的最佳误差度量函数来执行最终运动估计。在一些实施例中，可以使用错误分布的形状来确定最佳误差度量函数。用于该运动估计的一些示例性系统或装置可以包括用于压缩，时间插值和/或超分辨率处理的系统或装置。

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