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1. 发明申请

WO2013067101A1 LAYER DECOMPOSITION IN HIERARCHICAL VDR CODING 审中-公开
标题翻译：分层VDR编码中的层分解
公开(公告)号：WO2013067101A1
公开(公告)日：2013-05-10
申请号：PCT/US2012/062932
申请日：2012-11-01
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： SU, Guan-Ming , QU, Sheng , HULYALKAR, Samir N. , CHEN, Tao , GISH, Walter C. , KOEPFER, Hubert
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04N19/103 , H04N19/126 , H04N19/142 , H04N19/187 , H04N19/30 , H04N19/98
摘要： Techniques use multiple lower bit depth codecs to provide higher bit depth, high dynamic range, images from an upstream device to a downstream device. A base layer and one or more enhancement layers may be used to carry video signals, wherein the base layer cannot be decoded and viewed on its own. Lower bit depth input image data to base layer processing may be generated from higher bit depth high dynamic range input image data via advanced quantization to minimize the volume of image data to be carried by enhancement layer video signals. The image data in the enhancement layer video signals may comprise residual values, quantization parameters, and mapping parameters based in part on a prediction method corresponding to a specific method used in the advanced quantization. Adaptive dynamic range adaptation techniques take into consideration special transition effects, such as fade-in and fade-outs, for improved coding performance.
摘要翻译：技术使用多个较低位深度编解码器来提供更高的位深度，高动态范围，从上游设备到下游设备的图像。基本层和一个或多个增强层可用于承载视频信号，其中基本层不能自己解码和观看。低位深度输入图像数据到基层处理可以通过高级量化从较高位深度高动态范围输入图像数据生成，以最小化由增强层视频信号承载的图像数据的体积。增强层视频信号中的图像数据可以部分地基于对应于高级量化中使用的特定方法的预测方法而包括残差值，量化参数和映射参数。自适应动态范围适应技术考虑到特殊的过渡效应，如淡入和淡出，以提高编码性能。

2. 发明申请

WO2013106190A1 HYBRID REFERENCE PICTURE RECONSTRUCTION METHOD FOR SINGLE AND MULTIPLE LAYERED VIDEO CODING SYSTEMS 审中-公开
标题翻译：单层和多层视频编码系统的混合参考图像重构方法
公开(公告)号：WO2013106190A1
公开(公告)日：2013-07-18
申请号：PCT/US2012/071086
申请日：2012-12-20
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： YE, Yan , YIN, Peng , HE, Yuwen , GISH, Walter C. , TOURAPIS, Alexandros
IPC分类号： H04N7/26
CPC分类号： H04N19/44 , H04N19/10 , H04N19/103 , H04N19/172 , H04N19/182 , H04N19/187 , H04N19/33 , H04N19/36 , H04N19/537 , H04N19/55 , H04N19/59
摘要： 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.
摘要翻译：通过考虑来自基本层的反映射信号，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。

3. 发明申请

WO2020051361A1 AUTO EXPOSURE OF IMAGE SENSORS BASED UPON ENTROPY VARIANCE 审中-公开
公开(公告)号：WO2020051361A1
公开(公告)日：2020-03-12
申请号：PCT/US2019/049795
申请日：2019-09-05
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： MCELVAIN, Jon S. , GISH, Walter C. , MILLER, Jonathan Robert , WARD, Gregory John , ATKINS, Robin
IPC分类号： H04N5/235 , H04N5/355 , H04N5/353
摘要： An auto exposure method for an image sensor includes (a) evaluating variance, for each of a plurality of histograms of the pixel values from a respective plurality of individual exposures of the image sensor at respective exposure 5 time settings, of contribution from individual bins of the histogram to total entropy of the histogram, to determine an optimal exposure time for the image sensor corresponding to a minimum value of the variance, and (b) outputting the optimal exposure time to the image sensor.

4. 发明申请

WO2013090120A1 BACKWARDS-COMPATIBLE DELIVERY OF DIGITAL CINEMA CONTENT WITH EXTENDED DYNAMIC RANGE 审中-公开
标题翻译：数字电影内容的扩展动态范围的后退兼容
公开(公告)号：WO2013090120A1
公开(公告)日：2013-06-20
申请号：PCT/US2012/068275
申请日：2012-12-06
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： GISH, Walter C. , VOGT, Walter C.
IPC分类号： H04N7/26
CPC分类号： G06T5/007 , G06T2200/16 , G06T2207/10016 , G06T2207/10024 , G06T2207/20048 , G06T2207/20208 , H04N9/68 , H04N9/77 , H04N19/186 , H04N19/46 , H04N19/85
摘要： A digital cinema signal is encoded to produce a resulting coded digital cinema bitstream. Decoding the resulting coded digital cinema bitstream allows backwards-compatible delivery of digital cinema content. A digital image or video signal is preprocessed to produce two normalized digital image or video signals of differing quality levels and forward and inverse mapping parameters, which relate the normalized digital image or video signals. The preprocessing can be used prior to the encoding of a digital cinema signal to enable backwards-compatible delivery of digital cinema content.
摘要翻译：数字电影信号被编码以产生最终的编码数字电影比特流。对所产生的编码数字电影比特流的解码允许向后兼容的数字电影内容的传送。预处理数字图像或视频信号以产生不同质量级的两个归一化数字图像或视频信号以及与归一化的数字图像或视频信号相关的正向和反向映射参数。预处理可以在数字电影信号的编码之前使用，以实现数字电影内容的向后兼容传送。

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

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。

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