-
公开(公告)号：US11792253B2
公开(公告)日：2023-10-17
申请号：US16551561
申请日：2019-08-26
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Christopher Mueller , Yuwen He , James Crenshaw
Abstract: Bandwidth adaptation is achieved with selection of quality levels of media content to be transferred based on network conditions.
-
公开(公告)号：US09521413B2
公开(公告)日：2016-12-13
申请号：US15004582
申请日：2016-01-22
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Peshala V. Pahalawatta , Yuwen He , Alexandros Tourapis
IPC: H04N7/12 , H04N19/117 , H04N5/21 , H04N19/597 , H04N19/176 , H04N19/147 , H04N19/39 , H04N19/82 , H04N19/52
CPC classification number: H04N19/117 , H04N5/21 , H04N19/147 , H04N19/176 , H04N19/39 , H04N19/52 , H04N19/597 , H04N19/82
Abstract: Reference processing may be used in a video encoder or decoder to derive reference pictures that are better correlated with a source image to be encoded or decoded, which generally yields better coding efficiency. Methods for filter selection for a reference processing unit adapted for use in a video codec system are discussed. Specifically, methods for filter selection based on performing motion estimation and obtaining distortion/cost information by comparing reference pictures, either processed or non-processed, with the source image to be encoded are discussed.
-
3.发明申请公开(公告)号：US20140317234A1
公开(公告)日：2014-10-23
申请号：US14359859
申请日：2012-12-11
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Christopher Mueller , Yuwen He , James Crenshaw
IPC: H04L29/06
CPC classification number: H04L65/602 , H04L47/10 , H04L47/30 , H04L65/4069 , H04L65/80 , H04L67/02
Abstract: Bandwidth adaptation is achieved with selection of quality levels of media content to be transferred based on network conditions.
Abstract translation: 通过基于网络条件选择要传送的媒体内容的质量水平来实现带宽适配。
-
公开(公告)号：US20130177066A1
公开(公告)日：2013-07-11
申请号：US13733056
申请日：2013-01-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Yan Ye , Alexandros Tourapis , Peng Yin , Yuwen He
IPC: H04N7/26
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: Context based inverse mapping methods are provided. An image with pixel values within a lower dynamic range can be mapped to an image with pixel values within a higher dynamic range by utilizing context information associated with pixels in the lower dynamic range image.
Abstract translation: 提供了基于上下文的逆映射方法。 具有较低动态范围内的像素值的图像可以通过利用与较低动态范围图像中的像素相关联的上下文信息而被映射到具有更高动态范围内的像素值的图像。
-
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.
-
Patent Agency Ranking
公开(公告)号：US09641852B2
公开(公告)日：2017-05-02
申请号：US14960295
申请日：2015-12-04
Applicant: Dolby Laboratories Licensing Corporation
IPC: H04N19/176 , H04N19/187 , H04N19/30 , H04N19/103 , H04N19/156 , H04N19/172 , H04N19/50 , H04N19/117 , H04N19/12 , H04N19/132
CPC classification number: H04N19/187 , H04N19/103 , H04N19/117 , H04N19/12 , H04N19/132 , H04N19/156 , H04N19/172 , H04N19/30 , H04N19/50
Abstract: A multi-layer video system has a first layer encoder that encodes a first layer of video information, at least one second layer encoder that encodes at least one second layer of video information, and an encoder side reference processing unit (RPU) that estimates one or more of an optimal filter or an optimal process that applies on a reference picture that is reconstructed from the first video information layer, and processes a current picture of the second video information layer, based on a correlation between the first layer reconstructed reference picture. The correlation relates to a complexity characteristic that scaleably corresponds to the first video information layer reconstructed reference picture and the second video information layer current picture. A scalable video bitstream is outputted, which may be decoded by a compatible decoder. A decoder side RPU and the encoder side RPU function as an RPU pair.
-
公开(公告)号：US20140321552A1
公开(公告)日：2014-10-30
申请号：US14358703
申请日：2012-11-08
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Yuwen He , Alexandros Tourapis
IPC: H04N19/86 , H04N19/50 , H04N19/117
CPC classification number: H04N19/50 , H04N19/117 , H04N19/192 , H04N19/86
Abstract: Systems and methods for selection of deblocking parameters are described. These systems and methods are dependent on and can be adjusted based on applications in which deblocking filtering is to be applied. Various deblocking parameters are iteratively applied in a filter, then the respective distortion values are evaluated in order to select the optimal deblocking parameter. Use of edge detection in relation to selection of deblocking parameters is also described.
Abstract translation: 描述了用于选择去块参数的系统和方法。 这些系统和方法取决于并可以根据应用去块滤波的应用进行调整。 在滤波器中迭代地应用各种去块参数，然后评估各个失真值，以便选择最佳解块参数。 还描述了关于选择去块参数的边缘检测的使用。
-
公开(公告)号：US20130251027A1
公开(公告)日：2013-09-26
申请号：US13847022
申请日：2013-03-19
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
IPC: H04N7/26
CPC classification number: H04N19/187 , H04N19/103 , H04N19/117 , H04N19/12 , H04N19/132 , H04N19/156 , H04N19/172 , H04N19/30 , H04N19/50
Abstract: A multi-layer video system has a first layer encoder that encodes a first layer of video information, at least one second layer encoder that encodes at least one second layer of video information, and an encoder side reference processing unit (RPU) that estimates one or more of an optimal filter or an optimal process that applies on a reference picture that is reconstructed from the first video information layer, and processes a current picture of the second video information layer, based on a correlation between the first layer reconstructed reference picture. The correlation relates to a complexity characteristic that scaleably corresponds to the first video information layer reconstructed reference picture and the second video information layer current picture. A scalable video bitstream is outputted, which may be decoded by a compatible decoder. A decoder side RPU and the encoder side RPU function as an RPU pair.
Abstract translation: 多层视频系统具有对第一层视频信息进行编码的第一层编码器，至少一个编码至少一层第二层视频信息的第二层编码器，以及估计一个视频信号的编码器侧参考处理单元（RPU） 或更多的最佳滤波器或最佳处理，其适用于从第一视频信息层重建的参考图像，并且基于第一层重构参考图像之间的相关性处理第二视频信息层的当前图像。 相关性涉及可扩展地对应于第一视频信息层重构参考图像和第二视频信息层当前图像的复杂度特性。 输出可分级视频比特流，其可以由兼容解码器解码。 解码器侧RPU和编码器侧RPU作为RPU对。
-
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.
-
公开(公告)号：US10397294B2
公开(公告)日：2019-08-27
申请号：US14359859
申请日：2012-12-11
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Christopher Mueller , Yuwen He , James Crenshaw
IPC: H04L29/06 , H04L29/08 , H04L12/801 , H04L12/835
Abstract: Bandwidth adaptation is achieved with selection of quality levels of media content to be transferred based on network conditions.
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.02 seconds)
