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公开(公告)号：US10587897B2
公开(公告)日：2020-03-10
申请号：US15434699
申请日：2017-02-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Sheng Qu , Peng Yin , Yan Ye , Yuwen He , Walter Gish , Guan-Ming Su , Yufei Yuan , Samir Hulyalkar
IPC: H04N19/70 , H04N19/159 , H04N19/30 , H04N19/50 , H04N19/597 , H04N19/98 , H04L29/06
Abstract: Coding syntaxes in compliance with same or different VDR specifications may be signaled by upstream coding devices such as VDR encoders to downstream coding devices such as VDR decoders in a common vehicle in the form of RPU data units. VDR coding operations and operational parameters may be specified as sequence level, frame level, or partition level syntax elements in a coding syntax. Syntax elements in a coding syntax may be coded directly in one or more current RPU data units under a current RPU ID, predicted from other partitions/segments/ranges previously sent with the same current RPU ID, or predicted from other frame level or sequence level syntax elements previously sent with a previous RPU ID. A downstream device may perform decoding operations on multi-layered input image data based on received coding syntaxes to construct VDR images.
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公开(公告)号：US09942449B2
公开(公告)日：2018-04-10
申请号：US14913278
申请日：2014-08-20
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter Gish
CPC classification number: H04N1/6058 , G09G5/02 , G09G2340/06 , H04N9/12 , H04N9/3182 , H04N9/646
Abstract: Novel methods and systems for image processing and gamut mapping are disclosed, where image parameters in a first color space are transformed into parameters in a second color space. In one example, the gamut mapping system processes the image parameters in a parametrized space using substantially rectangular spectral functions. In another example, the gamut mapping system processes the image parameters in a parametrized space using smooth spectral functions. The smooth spectral functions may include a linear combination of functions, including at least a cosine square function. Image parameters may include an intensity parameter, a center wavelength parameter, and a saturation parameter.
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公开(公告)号：US10136162B2
公开(公告)日：2018-11-20
申请号：US14364979
申请日：2012-12-18
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Sheng Qu , Peng Yin , Yan Ye , Yuwen He , Walter Gish , Guan-Ming Su , Yufei Yuan , Samir Hulyalkar
IPC: H04N7/50 , H04N21/2365 , H04N19/70 , H04N19/30 , H04N19/159 , H04N19/50 , H04N19/597 , H04N19/98 , H04L29/06
Abstract: Coding syntaxes in compliance with same or different VDR specifications may be signaled by upstream coding devices such as VDR encoders to downstream coding devices such as VDR decoders in a common vehicle in the form of RPU data units. VDR coding operations and operational parameters may be specified as sequence level, frame level, or partition level syntax elements in a coding syntax. Syntax elements in a coding syntax may be coded directly in one or more current RPU data units under a current RPU ID, predicted from other partitions/segments/ranges previously sent with the same current RPU ID, or predicted from other frame level or sequence level syntax elements previously sent with a previous RPU ID. A downstream device may perform decoding operations on multi-layered input image data based on received coding syntaxes to construct VDR images.
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公开(公告)号：US20140185930A1
公开(公告)日：2014-07-03
申请号：US14198470
申请日：2014-03-05
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Guan-Ming Su , Sheng Qu , Hubert Koepfer , Yufei Yuan , Samir Hulyalkar , Walter Gish
IPC: G06T5/50 , H04N19/136 , G06T5/00 , H04N19/186
CPC classification number: G06T5/50 , G06T5/009 , H04N1/6027 , H04N19/105 , H04N19/136 , H04N19/186 , H04N19/36
Abstract: 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.
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公开(公告)号：US08947549B2
公开(公告)日：2015-02-03
申请号：US14007633
申请日：2012-12-20
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter Gish , David Ruhoff , Jon S. McElvain
CPC classification number: H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
Abstract: 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.
Abstract translation: 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。
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Patent Agency Ranking
6.发明申请Hybrid Reference Picture Reconstruction Method for Single and Multiple Layered Video Coding Systems 有权用于单层和多层次视频编码系统的混合参考图像重建方法公开(公告)号：US20140341273A1
公开(公告)日：2014-11-20
申请号：US14370400
申请日：2012-12-20
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Yan Ye , Peng Yin , Yuwen He , Walter Gish
IPC: H04N19/187 , H04N19/182 , H04N19/103 , H04N19/51 , H04N19/33 , H04N19/59 , H04N19/55 , H04N19/172 , H04N19/44
CPC classification number: H04N19/44 , H04N19/10 , H04N19/103 , H04N19/172 , H04N19/182 , H04N19/187 , H04N19/33 , H04N19/36 , H04N19/537 , H04N19/55 , H04N19/59
Abstract: An inter-layer reference picture is generated either by considering an inverse mapped signal from a base layer, a temporal signal from an enhancement layer, or a combination of both.
Abstract translation: 通过考虑来自基层的逆映射信号，来自增强层的时间信号或两者的组合来生成层间参考图像。
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公开(公告)号：US08929654B2
公开(公告)日：2015-01-06
申请号：US14369073
申请日：2012-12-20
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter Gish , Christopher J. Vogt , David Ruhoff , Jon S. McElvain
CPC classification number: H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
Abstract: A substantially rectangular spectral representation is synthesized, which is adapted to produce either (a) image capture device sensor outputs if applied to an image capture device or (b) color values if applied to corresponding analysis functions. Spectral expansion, which can be used in various image processing methods, is achieved with the synthesized spectral representation.
Abstract translation: 合成基本上矩形的光谱表示，其适于产生（a）如果应用于图像捕获装置的图像捕获装置传感器输出，或（b）如果应用于相应的分析功能，则颜色值。 可以用于各种图像处理方法的光谱扩展通过合成的光谱表示来实现。
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公开(公告)号：US08837825B2
公开(公告)日：2014-09-16
申请号：US14198470
申请日：2014-03-05
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Guan-Ming Su , Sheng Qu , Hubert Koepfer , Yufei Yuan , Samir Hulyalkar , Walter Gish
IPC: G06K9/36 , H04N19/186 , H04N19/105 , G06T5/50 , G06T5/00 , H04N19/136 , H04N19/36
CPC classification number: G06T5/50 , G06T5/009 , H04N1/6027 , H04N19/105 , H04N19/136 , H04N19/186 , H04N19/36
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US10158835B2
公开(公告)日：2018-12-18
申请号：US15000782
申请日：2016-01-19
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter Gish , Zhen Li , Donald Pian , Christopher J. Vogt , Hyung-Suk Kim , David Ruhoff
Abstract: 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.
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公开(公告)号：US20140348426A1
公开(公告)日：2014-11-27
申请号：US14369073
申请日：2012-12-20
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter Gish , Christopher J. Vogt , David Ruhoff , Jon S. McElvain
IPC: G06T7/40
CPC classification number: H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
Abstract: A substantially rectangular spectral representation is synthesized, which is adapted to produce either (a) image capture device sensor outputs if applied to an image capture device or (b) color values if applied to corresponding analysis functions. Spectral expansion, which can be used in various image processing methods, is achieved with the synthesized spectral representation.
Abstract translation: 合成基本上矩形的光谱表示，其适于产生（a）如果应用于图像捕获装置的图像捕获装置传感器输出，或（b）如果应用于相应的分析功能，则颜色值。 可以用于各种图像处理方法的光谱扩展通过合成的光谱表示来实现。
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