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1. 发明申请

WO2009094349A1 ADAPTIVE MOTION INFORMATION COST ESTIMATION WITH DYNAMIC LOOK-UP TABLE UPDATING 审中-公开
标题翻译：自适应运动信息成本估计与动态查看表更新
公开(公告)号：WO2009094349A1
公开(公告)日：2009-07-30
申请号：PCT/US2009/031493
申请日：2009-01-21
申请人： DOLBY LABORATORIES LICENSING CORPORATION , LI, Zhen , TOURAPIS, Alexandros
发明人： LI, Zhen , TOURAPIS, Alexandros
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/00672 , H04N19/147 , H04N19/149 , H04N19/15 , H04N19/19 , H04N19/52 , H04N19/567 , H04N19/91
摘要： Adaptive motion information cost estimation is achieved in processing video information. A transmission cost is estimated that is associated with encoding a motion vector difference (mvd) in motion vectors that describe a motion characteristic of the video information. The mvd is encoded based on minimizing a rate estimation mismatch associated with the motion vectors. The encoding step includes computing a bit count associated with the mvd using CABAC. A value is indexed that corresponds to the cost from one or more entries in the lookup table. The cost relates to context or content characteristics associated with the video information. The lookup table is adaptively updated based on a change in the contextual information or content characteristics. The value is dynamically adjustable based on the change.
摘要翻译：在处理视频信息时实现自适应运动信息成本估计。估计与描述视频信息的运动特性的运动矢量中的运动矢量差（mvd）编码有关的传输成本。基于最小化与运动矢量相关联的速率估计失配来编码mvd。编码步骤包括使用CABAC计算与mvd相关联的位计数。索引值对应于查找表中的一个或多个条目的成本。成本涉及与视频信息相关联的上下文或内容特征。基于上下文信息或内容特征的变化来自适应地更新查找表。该值可根据变化动态调整。

2. 发明申请

WO2012142285A2 QUALITY ASSESSMENT FOR IMAGES THAT HAVE EXTENDED DYNAMIC RANGES OR WIDE COLOR GAMUTS 审中-公开
标题翻译：具有扩展动态范围或宽彩色游戏的图像的质量评估
公开(公告)号：WO2012142285A2
公开(公告)日：2012-10-18
申请号：PCT/US2012/033318
申请日：2012-04-12
申请人： DOLBY LABORATORIES LICENSING CORPORATION , LI, Zhen , GISH, Walter
发明人： LI, Zhen , GISH, Walter
IPC分类号： H04N17/02 , G06T7/00 , H04N9/67 , G06T5/00
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 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，并且在具有与第一动态范围相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。

3. 发明申请

WO2011133505A1 QUALITY ASSESSMENT OF HIGH DYNAMIC RANGE, VISUAL DYNAMIC RANGE AND WIDE COLOR GAMUT IMAGE AND VIDEO 审中-公开
标题翻译：高动态范围，视觉动态范围和宽彩色游戏图像和视频的质量评估
公开(公告)号：WO2011133505A1
公开(公告)日：2011-10-27
申请号：PCT/US2011/032982
申请日：2011-04-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION , LI, Zhen
发明人： LI, Zhen
IPC分类号： H04N17/02
CPC分类号： H04N17/02
摘要： Assessing a visual quality characteristic includes accessing and processing at least a first image or video signal and a second image or video signal and processing the accessed images or video signals. Based at least in part on processing the accessed images or video signals, a difference is measured between the processed at least first and second images or video signals. The visual quality characteristic relates to a magnitude of the measured difference between the processed at least first and second images or video signals. The at least first and second images or video signals include a high or visual dynamic range and/or a wide color gamut. The visual quality characteristic is assessed based, at least in part, on the measured difference.
摘要翻译：评估视觉质量特征包括访问和处理至少第一图像或视频信号和第二图像或视频信号并处理所访问的图像或视频信号。至少部分地基于处理所访问的图像或视频信号，在所处理的至少第一和第二图像或视频信号之间测量差异。视觉质量特性涉及所处理的至少第一和第二图像或视频信号之间的测量差异的大小。至少第一和第二图像或视频信号包括高或视觉动态范围和/或宽色域。视觉质量特征至少部分地基于测量的差异进行评估。

4. 发明申请

WO2009155398A1 VIDEO COMPRESSION UNDER MULTIPLE DISTORTION CONSTRAINTS 审中-公开
标题翻译：多重失效约束下的视频压缩
公开(公告)号：WO2009155398A1
公开(公告)日：2009-12-23
申请号：PCT/US2009/047755
申请日：2009-06-18
申请人： DOLBY LABORATORIES LICENSING CORPORATION , LI, Zhen , TOURAPIS, Alexandros
发明人： LI, Zhen , TOURAPIS, Alexandros
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/19 , H04N19/103 , H04N19/124 , H04N19/147 , H04N19/164 , H04N19/176 , H04N19/61
摘要： Video compression is performed under multiple distortion constraints. Video coding includes determining a first set of Lagrangian cost values for multiple coding modes using a first distortion metric, determining a second set of Lagrangian cost values for the multiple coding modes using a second distortion metric, and selecting one of the coding modes based on the first set of Lagrangian cost values and the second set of Lagrangian cost values to encode a pixel block using the selected coding mode. The distortion metrics can include information associated with video display characteristics such as screen display size, video processing performance, a distortion characteristic, a temporal characteristic, or a spatial characteristic. The distortion metrics can also include characteristics of multiple video displays, such as parameters for usage, importance, design, and the technology type of the video displays.
摘要翻译：在多个失真约束下进行视频压缩。视频编码包括使用第一失真度量来确定用于多个编码模式的第一组拉格朗日代价值，使用第二失真度量确定多个编码模式的第二拉格朗日代价集合，并且基于第一组拉格朗日代价值和第二组拉格朗日代价值，以使用所选择的编码模式对像素块进行编码。失真度量可以包括与诸如屏幕显示尺寸，视频处理性能，失真特性，时间特性或空间特性的视频显示特征相关联的信息。失真度量还可以包括多个视频显示器的特征，例如使用参数，重要性，设计和视频显示器的技术类型。

5. 发明申请

WO2012158504A1 EFFICIENT ARCHITECTURE FOR LAYERED VDR CODING 审中-公开
标题翻译：层次化VDR编码的高效架构
公开(公告)号：WO2012158504A1
公开(公告)日：2012-11-22
申请号：PCT/US2012/037479
申请日：2012-05-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION , SU, Guan-Ming , QU, Sheng , LI, Zhen , GISH, Walter C.
发明人： SU, Guan-Ming , QU, Sheng , LI, Zhen , GISH, Walter C.
IPC分类号： H04N7/26
CPC分类号： H04N19/00424 , H04N19/105 , H04N19/186 , H04N19/187 , H04N19/30 , H04N19/85 , H04N19/98
摘要： In layered Visual Dynamic range (VDR) coding, inter-layer prediction requires several color-format transformations between the input VDR and Standard Dynamic Range (SDR) signals. Coding and decoding architectures are presented wherein inter-layer prediction is performed in the SDR-based color format, thus reducing computational complexity in both the encoder and the decoder, without compromising coding efficiency or coding quality.
摘要翻译：在分层视觉动态范围（VDR）编码中，层间预测需要在输入VDR和标准动态范围（SDR）信号之间进行多种颜色格式转换。提出了编码和解码架构，其中以基于SDR的颜色格式执行层间预测，从而降低编码器和解码器中的计算复杂度，而不损害编码效率或编码质量。

6. 发明申请

WO2012027405A2 EXTENDING IMAGE DYNAMIC RANGE 审中-公开
标题翻译：扩展图像动态范围
公开(公告)号：WO2012027405A2
公开(公告)日：2012-03-01
申请号：PCT/US2011/048861
申请日：2011-08-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION , GISH, Walter , LI, Zhen , PIAN, Donald , VOGT, Christopher , KIM, Hyung-Suk , RUHOFF, David
发明人： GISH, Walter , LI, Zhen , PIAN, Donald , VOGT, Christopher , KIM, Hyung-Suk , RUHOFF, David
IPC分类号： H04N9/67 , G09G5/02
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色彩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色彩空间中表示的视频信号。第二色彩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到第二动态范围上。

7. 发明申请

WO2010105036A1 LAYERED COMPRESSION OF HIGH DYNAMIC RANGE, VISUAL DYNAMIC RANGE, AND WIDE COLOR GAMUT VIDEO 审中-公开
标题翻译：高动态范围，视觉动态范围和宽彩色游戏视频的分层压缩
公开(公告)号：WO2010105036A1
公开(公告)日：2010-09-16
申请号：PCT/US2010/026953
申请日：2010-03-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION , GISH, Walter C. , WEBB, Richard W. , LI, Zhen , TOURAPIS, Alexandros
发明人： GISH, Walter C. , WEBB, Richard W. , LI, Zhen , TOURAPIS, Alexandros
IPC分类号： H04N7/46 , H04N7/26 , G06T5/00
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： Layered compression of high dynamic and wide color gamut video wherein a high dynamic range stream may be encoded based on a low dynamic range stream. The high dynamic range stream may comprise a dynamic range of human eye perception for luminance and a wide color gamut.
摘要翻译：高动态和宽色域视频的分层压缩，其中可以基于低动态范围流来编码高动态范围流。高动态范围流可以包括用于亮度和宽色域的人眼感知的动态范围。

8. 发明申请

WO2010033565A1 ADAPTIVE VIDEO ENCODER CONTROL 审中-公开
标题翻译：自适应视频编码器控制
公开(公告)号：WO2010033565A1
公开(公告)日：2010-03-25
申请号：PCT/US2009/057117
申请日：2009-09-16
申请人： DOLBY LABORATORIES LICENSING CORPORATION , LI, Zhen , TOURAPIS, Alexandros
发明人： LI, Zhen , TOURAPIS, Alexandros
IPC分类号： H04N7/26
CPC分类号： H04N19/19 , H04N19/103 , H04N19/105 , H04N19/147 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/196
摘要： A value of one or more Lagrangian multipliers is adaptively estimate and update based, at least in part, on the video source statistics or dynamic programming. Methods, techniques, and systems involve determining a first Lagrangian multiplier with a video encoder, and updating a second Lagrangian multiplier with the first Lagrangian multiplier. The system can include a Lagrangian multiplier Estimation Module that estimates the Lagrangian multiplier, and a Lagrangian multiplier Update Module that updates the current Lagrangian multiplier using the estimated Lagrangian multiplier. The Online Lagrangian Multiplier Estimation Module may function with Rate Distortion Slope Estimation with Rate Distortion Optimized Mode Decision; Rate Distortion Slope Estimation with Local Approximation; Rate Distortion Slope Estimation with Local Information; or Rate Distortion Slope Estimation with Global Information. The Lagrangian Multiplier Update Module may function with Direct Update; Step Size Update; Sliding Window Update; or Periodical Update.
摘要翻译：一个或多个拉格朗日乘数的值至少部分地基于视频源统计或动态规划自适应地估计和更新。方法，技术和系统涉及用视频编码器确定第一拉格朗日乘数，并用第一拉格朗日乘数更新第二拉格朗日乘数。该系统可以包括拉格朗日乘数估计模块，其估计拉格朗日乘数，以及拉格朗日乘数更新模块，其使用估计的拉格朗日乘数来更新当前的拉格朗日乘数。在线拉格朗日乘数估计模块可以利用速率失真优化模式决策的速率失真斜率估计功能; 利用局部逼近估计失真坡度估计; 用本地信息估价失真坡度估计; 或使用全局信息对失真斜率进行估计。拉格朗日乘数更新模块可以直接更新; 步长更新; 滑动窗口更新; 或定期更新。

9. 发明授权

EP2609746B1 EXTENDING IMAGE DYNAMIC RANGE 有权转让
公开(公告)号：EP2609746B1
公开(公告)日：2020-03-25
申请号：EP11749702.4
申请日：2011-08-23
申请人： Dolby Laboratories Licensing Corporation
发明人： GISH, Walter , LI, Zhen , PIAN, Donald , VOGT, Christopher , KIM, Hyung-Suk , RUHOFF, David
IPC分类号： H04N9/67 , G09G5/02

10. 发明授权

EP2406959B1 LAYERED COMPRESSION OF HIGH DYNAMIC RANGE, VISUAL DYNAMIC RANGE, AND WIDE COLOR GAMUT VIDEO 有权
标题翻译： GESCHICHTETE KOMPRIMIERUNG VON VIDEOSIGENEN MIT HOHEM DYNAMIKUMFANG，VISUELLEM DYNAMIKUMFANG UND GROSSER FARBALLETE
公开(公告)号：EP2406959B1
公开(公告)日：2015-01-14
申请号：EP10711960.4
申请日：2010-03-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： GISH, Walter C. , WEBB, Richard W. , LI, Zhen , TOURAPIS, Alexandros
IPC分类号： G06T5/50 , H04N19/36 , H04N19/63 , H04N19/70 , H04N19/59 , H04N19/61 , H04N19/30
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

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