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1. 发明授权

US09438849B2 Systems and methods for transmitting video frames 有权
标题翻译：用于传输视频帧的系统和方法
公开(公告)号：US09438849B2
公开(公告)日：2016-09-06
申请号：US14054090
申请日：2013-10-15
申请人： Dolby Laboratories Licensing Corporation
发明人： Limin Liu , Ning Xu , Alfred She , James E. Crenshaw
IPC分类号： H04N7/01 , H04N5/38 , H04N19/30 , H04N19/37 , H04N19/132 , H04N19/587 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/6379 , H04N19/467 , H04N21/84
CPC分类号： H04N7/01 , H04N5/38 , H04N7/0127 , H04N19/132 , H04N19/30 , H04N19/37 , H04N19/467 , H04N19/587 , H04N21/234327 , H04N21/23614 , H04N21/4348 , H04N21/6379 , H04N21/84
摘要： Systems and methods for transmitting video frames are described. Specifically, frame rate modification techniques such as blending and/or packing processes are used to translate high frame-rate signals into low-frame rate signals, which are transmitted over limited bandwidth transmission media to a video signal receiver. Information pertaining to the blending and/or packing processes is transferred to the video signal receiver in the form of a map that is used to reconstruct the high frame-rate signals from the low-frame rate signals. The high frame-rate signals may be used by certain types of newer equipment designed to use such signals. However, legacy equipment that cannot use the high frame-rate signals may opt to use certain embodiments described herein that are designed to be backward-compatible. When backward-compatible, the video signal receiver generates suitable low frame-rate signals as well as the high frame-rate signals, thereby accommodating both legacy as well as newer equipment.
摘要翻译：描述用于传输视频帧的系统和方法。具体地，诸如混合和/或打包处理之类的帧速率修改技术被用于将高帧率信号转换成通过有限带宽传输媒体传输到视频信号接收机的低帧速率信号。关于混合和/或打包处理的信息以用于从低帧速率信号重建高帧率信号的地图的形式传送到视频信号接收器。高帧率信号可以被设计用于使用这种信号的某些类型的较新设备使用。然而，不能使用高帧速率信号的传统设备可以选择使用被设计为向后兼容的本文描述的某些实施例。当向后兼容时，视频信号接收器产生合适的低帧率信号以及高帧速率信号，从而适应传统以及更新的设备。

2. 发明申请

US20220180635A1 CONTENT-AWARE PQ RANGE ANALYZER AND TONE MAPPING IN LIVE FEEDS 有权
公开(公告)号：US20220180635A1
公开(公告)日：2022-06-09
申请号：US17606433
申请日：2020-04-20
申请人： Dolby Laboratories Licensing Corporation
发明人： Ali Zandifar , James E. Crenshaw , Cristina Michel Vasco
IPC分类号： G06V20/40 , G06T7/11 , G06V10/60 , G06V10/22 , G06T5/00 , H04N7/01 , H04N19/46
摘要： In image processing system comprises an input configured to receive an image signal, the image signal including a plurality of frames of image data; and a processor configured to automatically determine an image classification based on at least one frame of the plurality of frames, and dynamically generate a mapping metadata based on the image classification. The processor includes determination circuitry configured to determine a content type for the image signal; segmentation circuitry configured to segment the image data into a plurality of feature item regions, based on the content type; extraction circuitry configured to extract at least one image aspect value for respective ones of the plurality of feature item regions.

3. 发明授权

US09679366B2 Guided color grading for extended dynamic range 有权
公开(公告)号：US09679366B2
公开(公告)日：2017-06-13
申请号：US15030346
申请日：2014-10-21
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Ning Xu , Tao Chen , James E. Crenshaw , Samir N. Hulyalkar
IPC分类号： G09G5/02 , G06T5/00 , H04N1/60 , H04N9/67 , G06T5/50 , H04N1/40 , H04N5/57 , H04N21/431
CPC分类号： G06T5/007 , G06T5/008 , G06T5/50 , G06T2207/20208 , H04N1/40006 , H04N1/6052 , H04N5/57 , H04N9/67 , H04N21/4318
摘要： Novel methods and systems for color grading are disclosed. The color grading process for a visual dynamic range image can be guided by information relating to the color grading of other images such as the standard dynamic range image.

4. 发明授权

US09607364B2 Methods and systems for inverse tone mapping 有权
公开(公告)号：US09607364B2
公开(公告)日：2017-03-28
申请号：US15035477
申请日：2014-11-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Ning Xu , Tao Chen , James E. Crenshaw , Timo Kunkel , Bongsun Lee
IPC分类号： G06T5/00 , G06T5/40 , H04N1/60 , H04N1/407 , G06T7/90
CPC分类号： G06T5/007 , G06T5/40 , G06T7/90 , G06T2207/20016 , G06T2207/20028 , G06T2207/20208 , H04N1/4072 , H04N1/6027
摘要： Novel methods and systems for inverse tone mapping are disclosed. A scene can be analyzed to obtain highlight detection from bright light sources and specular reflections. An inverse tone mapping curve can be calculated based on the lower dynamic range and higher dynamic range displays. Multi-scale filtering can be applied to reduce noise or artifacts.

5. 发明授权

US10368031B2 Systems and methods to control judder visibility 有权
公开(公告)号：US10368031B2
公开(公告)日：2019-07-30
申请号：US15119117
申请日：2015-02-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Ning Xu , Kimball Darr Thurston, III , Scott Daly , James E. Crenshaw , Alfred She
IPC分类号： H04N9/64 , H04N7/01 , H04N5/14 , H04N5/21 , G06K9/46 , G06K9/62 , G06T5/00 , H04N5/262 , G06T7/246 , H04N21/4402
摘要： Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Capture time and display time of frames can be manipulated to obtain a desired amount of judder. Frames can be interpolated to obtain a film with a higher frame rate and localized control of judder.

6. 发明授权

US09554020B2 Workflow for content creation and guided display management of EDR video 有权
标题翻译： EDR视频的内容创建和导向显示管理的工作流程
公开(公告)号：US09554020B2
公开(公告)日：2017-01-24
申请号：US14894153
申请日：2014-11-10
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Kimball D. Thurston, III , James E. Crenshaw , Robin Atkins , Tao Chen , Timo Kunkel
IPC分类号： G09G5/02 , G06T5/00 , G06T5/50 , H04N1/60 , H04N9/73
CPC分类号： H04N1/603 , G06T5/007 , G06T5/50 , H04N9/69 , H04N2201/326
摘要： Video data with enhanced dynamic range (EDR) are color graded for a first and a second reference display with different dynamic range characteristics to generate a first color-graded output, a second color graded output, and associated first and second sets of metadata. The first color-graded output and the two sets of metadata are transmitted from an encoder to a decoder to be displayed on a target display which may be different than the second reference display. At the receiver, a decoder interpolates between the first and second set of metadata to generate a third set of metadata which drives the display management process for displaying the received video data onto the target display. The second set of metadata of metadata may be represented as delta metadata values from the first set of metadata values.
摘要翻译：具有增强动态范围（EDR）的视频数据对于具有不同动态范围特性的第一和第二参考显示器进行颜色分级，以生成第一颜色分级输出，第二颜色分级输出以及相关联的第一和第二组元数据。第一颜色分级输出和两组元数据从编码器发送到解码器，以显示在可能不同于第二参考显示的目标显示器上。在接收器处，解码器在第一和第二组元数据之间插值以产生第三组元数据，该第三组元数据驱动用于将接收的视频数据显示在目标显示器上的显示管理过程。元数据的第二组元数据可以从第一组元数据值表示为增量元数据值。

7. 发明申请

US20140104492A1 Systems and Methods for Transmitting Video Frames 有权
标题翻译：用于发送视频帧的系统和方法
公开(公告)号：US20140104492A1
公开(公告)日：2014-04-17
申请号：US14054090
申请日：2013-10-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Limin Liu , Ning Xu , Alfred She , James E. Crenshaw
IPC分类号： H04N7/01 , H04N5/38
CPC分类号： H04N7/01 , H04N5/38 , H04N7/0127 , H04N19/132 , H04N19/30 , H04N19/37 , H04N19/467 , H04N19/587 , H04N21/234327 , H04N21/23614 , H04N21/4348 , H04N21/6379 , H04N21/84
摘要： Systems and methods for transmitting video frames are described. Specifically, frame rate modification techniques such as blending and/or packing processes are used to translate high frame-rate signals into low-frame rate signals, which are transmitted over limited bandwidth transmission media to a video signal receiver. Information pertaining to the blending and/or packing processes is transferred to the video signal receiver in the form of a map that is used to reconstruct the high frame-rate signals from the low-frame rate signals. The high frame-rate signals may be used by certain types of newer equipment designed to use such signals. However, legacy equipment that cannot use the high frame-rate signals may opt to use certain embodiments described herein that are designed to be backward-compatible. When backward-compatible, the video signal receiver generates suitable low frame-rate signals as well as the high frame-rate signals, thereby accommodating both legacy as well as newer equipment.
摘要翻译：描述用于传输视频帧的系统和方法。具体地，诸如混合和/或打包处理之类的帧速率修改技术被用于将高帧率信号转换成通过有限带宽传输媒体传输到视频信号接收机的低帧速率信号。关于混合和/或打包处理的信息以用于从低帧速率信号重建高帧率信号的地图的形式传送到视频信号接收器。高帧率信号可以被设计用于使用这种信号的某些类型的较新设备使用。然而，不能使用高帧速率信号的传统设备可以选择使用被设计为向后兼容的本文描述的某些实施例。当向后兼容时，视频信号接收器产生合适的低帧率信号以及高帧速率信号，从而适应传统以及更新的设备。

8. 发明申请

US20140098886A1 Video Compression Implementing Resolution Tradeoffs and Optimization 有权
标题翻译：视频压缩实现决议权衡和优化
公开(公告)号：US20140098886A1
公开(公告)日：2014-04-10
申请号：US14119090
申请日：2012-05-24
申请人： Dolby Laboratories Licensing Corporation
发明人： James E. Crenshaw , Alfred She , Ning Xu , Limin Liu , Scott Daly , Kevin Stec , Samir Hulyalkar
IPC分类号： H04N7/36 , H04N7/26
CPC分类号： H04N19/573 , H04N19/176 , H04N19/182 , H04N19/198 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/587 , H04N19/59
摘要： Compression transforming video into a compressed representation (which typically can be delivered at a capped pixel rate compatible with conventional video systems), including by generating spatially blended pixels and temporally blended pixels (e.g., temporally and spatially blended pixels) of the video, and determining a subset of the blended pixels for inclusion in the compressed representation including by assessing quality of reconstructed video determined from candidate sets of the blended pixels. Trade-offs may be made between temporal resolution and spatial resolution of regions of reconstructed video determined by the compressed representation to optimize perceived video quality while reducing the data rate. The compressed data may be packed into frames. A reconstruction method generates video from a compressed representation using metadata indicative of at least one reconstruction parameter for spatial regions of the reconstructed video.
摘要翻译：压缩将视频转换为压缩表示（通常可以以与常规视频系统兼容的上限像素速率传送），包括通过生成视频的空间混合像素和时间上混合的像素（例如，时间和空间上混合的像素），以及确定用于包含在压缩表示中的混合像素的子集包括通过评估由混合像素的候选集确定的重建视频的质量。可以在由压缩表示确定的重构视频的区域的时间分辨率和空间分辨率之间进行权衡，以在降低数据速率的同时优化感知视频质量。压缩数据可以被打包成帧。重建方法使用表示重建视频的空间区域的至少一个重建参数的元数据从压缩表示生成视频。

9. 发明授权

US10944938B2 Dual-ended metadata for judder visibility control 有权
公开(公告)号：US10944938B2
公开(公告)日：2021-03-09
申请号：US15515984
申请日：2015-09-29
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Ning Xu , James E. Crenshaw , Scott Daly , Samir N. Hulyalkar , Raymond Yeung
IPC分类号： H04N7/01 , H04N19/46 , H04N19/157 , H04N5/14 , H04N5/21
摘要： Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Judder metadata can be generated based on the input frames. The judder metadata includes base frame rate, judder control rate and display parameters, and can be used to control judder for different applications.

10. 发明授权

US10200666B2 Coherent motion estimation for stereoscopic video 有权
公开(公告)号：US10200666B2
公开(公告)日：2019-02-05
申请号：US15041982
申请日：2016-02-11
申请人： Dolby Laboratories Licensing Corporation
发明人： Ning Xu , Georgios Georgiadis , James E. Crenshaw
IPC分类号： H04N13/00 , G06T7/269 , G06T7/285 , H04N13/139 , H04N13/128 , H04N13/144
摘要： Methods and systems for enhancing motion estimation are disclosed for stereoscopic video sequences. The motion vector parameters and disparity values for consecutive frames may be calculated to estimate motion in a coherent manner between two channels, such as a left channel and a right channel in stereoscopic images. Occlusion handling is also applied to improve the estimation.

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