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1. 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。

2. 发明授权

US08731287B2 Image prediction based on primary color grading model 有权
标题翻译：基于原色分级模型的图像预测
公开(公告)号：US08731287B2
公开(公告)日：2014-05-20
申请号：US14110701
申请日：2012-04-13
申请人： Guan-Ming Su , Sheng Qu , Hubert Koepfer , Yufei Yuan , Samir Hulyalkar , Walter Gish
发明人： Guan-Ming Su , Sheng Qu , Hubert Koepfer , Yufei Yuan , Samir Hulyalkar , Walter Gish
IPC分类号： G06K9/36
CPC分类号： G06T5/50 , G06T5/009 , H04N1/6027 , H04N19/105 , H04N19/136 , H04N19/186 , H04N19/36
摘要： Inter-color image prediction is based on color grading modeling. Prediction is applied to the efficient coding of images and video signals of high dynamic range. Prediction models may include a color transformation matrix that models hue and saturation color changes and a non-linear function modeling color correction changes. Under the assumption that the color grading process uses a slope, offset, and power (SOP) operations, an example non linear prediction model is presented.
摘要翻译：彩色图像预测是基于颜色分级建模的。预测应用于高动态范围的图像和视频信号的有效编码。预测模型可以包括对色相和饱和度颜色变化进行建模的颜色变换矩阵和非线性函数建模颜色校正变化。在颜色分级过程使用斜率，偏移和功率（SOP）操作的假设下，呈现示例非线性预测模型。

3. 发明授权

US08660352B2 Quality assessment of images with extended dynamic range 失效
标题翻译：具有扩展动态范围的图像质量评估
公开(公告)号：US08660352B2
公开(公告)日：2014-02-25
申请号：US13536785
申请日：2012-06-28
申请人： Walter Gish
发明人： Walter Gish
IPC分类号： G06K9/34
CPC分类号： G06T7/0002 , G06T2207/10024 , G06T2207/20076 , G06T2207/20208 , G06T2207/30168 , H04N5/2355
摘要： Given a set of two images with visual dynamic range (VDR), wherein the second image is an approximation of the first image, a standard dynamic range (SDR) equivalent peak value (EPV) is computed, wherein the EPV is smaller than the maximum pixel value of the first VDR image. An image assessment metric for the second image is computed using the EPV and an error measurement between the first image and the second image. The EPV may be computed using image statistics (e.g., mean and standard deviation) derived from the first VDR image or, if available, from its corresponding SDR image.
摘要翻译：给定一组具有视觉动态范围（VDR）的两个图像，其中第二图像是第一图像的近似值，计算标准动态范围（SDR）等效峰值（EPV），其中EPV小于最大值第一VDR图像的像素值。使用EPV和第一图像与第二图像之间的误差测量来计算第二图像的图像评估度量。可以使用从第一VDR图像导出的图像统计（例如，平均值和标准偏差）或者如果可用，从其相应的SDR图像来计算EPV。

4. 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。

5. 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。

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. 发明申请

US20140022460A1 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：US20140022460A1
公开(公告)日：2014-01-23
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 , H04N17/02
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。

9. 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。

10. 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。

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