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1. 发明授权

US08731064B2 Post-processing for decoder complexity scalability 有权
标题翻译：后处理解码器复杂度可扩展性
公开(公告)号：US08731064B2
公开(公告)日：2014-05-20
申请号：US11530810
申请日：2006-09-11
申请人： Hsi-Jung Wu , Ionut Hristodorescu , Christian L. Duvivier , James Normile , Jochen Christian Schmidt , Chris Yoochang Chung
发明人： Hsi-Jung Wu , Ionut Hristodorescu , Christian L. Duvivier , James Normile , Jochen Christian Schmidt , Chris Yoochang Chung
IPC分类号： H04N7/12 , H04N7/50 , H04N7/26
CPC分类号： H04N7/26946 , H04N19/117 , H04N19/156 , H04N19/176 , H04N19/196 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/86
摘要： Systems, apparatuses and methods whereby a base coded video signal is provided to a decoder having a set of post-processing stages. The base coded video signal can be decoded to produce a base decoded video signal. Post-processing of the base decoded video signal can be used to produce an enhanced quality video output signal. Application of a post-processing stage can be implemented according to the capabilities of the decoder and/or the instantaneous operating parameters of the decoder and/or characteristics of a display. A control signal, communicated over a dedicated channel separate from the base coded video signal, can be used initiate and/or aid implementation of a post-processing stage. The control signal can also provide information to assist/manage the decoding of the base coded video signal. The use of additional post-processing stages increases the complexity of an overall decoding process while improving the quality of a resulting reproduced video sequence.
摘要翻译：将基本编码视频信号提供给具有一组后处理级的解码器的系统，装置和方法。基编码视频信号可被解码以产生基本解码视频信号。可以使用基本解码视频信号的后处理来产生增强的质量视频输出信号。后处理阶段的应用可以根据解码器的能力和/或解码器的瞬时操作参数和/或显示器的特性来实现。可以使用通过与基本编码视频信号分开的专用信道传送的控制信号来启动和/或辅助后处理阶段的实现。控制信号还可以提供信息来辅助/管理基本编码视频信号的解码。使用额外的后处理级增加了整体解码过程的复杂性，同时提高了所得到的再现视频序列的质量。

2. 发明授权

US08340194B2 High-yield multi-threading method and apparatus for video encoders/transcoders/decoders with dynamic video reordering and multi-level video coding dependency management 有权
标题翻译：用于具有动态视频重排序和多级视频编码依赖管理的视频编码器/代码转换器/解码器的高产量多线程方法和装置
公开(公告)号：US08340194B2
公开(公告)日：2012-12-25
申请号：US12479336
申请日：2009-06-05
申请人： Jochen Christian Schmidt , Paul Seung Ho Chang , Chris Yoochang Chung , Christian Luc Duvivier , Ionut Hristodorescu , Hsi-Jung Wu , Dazhong Zhang , Xiaosong Zhou
发明人： Jochen Christian Schmidt , Paul Seung Ho Chang , Chris Yoochang Chung , Christian Luc Duvivier , Ionut Hristodorescu , Hsi-Jung Wu , Dazhong Zhang , Xiaosong Zhou
IPC分类号： H04N11/04
CPC分类号： H04N19/436 , H04N19/102 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/61
摘要： Disclosed is an exemplary video coder and video coding method according to an embodiment of the present invention. The exemplary video coder includes a scheduler, a plurality of processors and a multiplexer. The scheduler can examine processing units in an input buffer to determine an order for the processing unit to be coded by a processor. If the processing unit under examination depends on a processing unit not yet processed, the processing unit under examination can be merged with other processing units, if any, that share a similar dependency. If the processing unit under examination does not depend on any processing units not yet processed, it can be sent to a next available processor for coding. When a processing unit is sent to a processor, any merged processing units that depend on sent processing unit can also be sent to a next available processor.
摘要翻译：公开了根据本发明的实施例的示例性视频编码器和视频编码方法。示例性视频编码器包括调度器，多个处理器和多路复用器。调度器可以检查输入缓冲器中的处理单元以确定处理单元由处理器编码的顺序。如果正在检查的处理单元依赖于尚未处理的处理单元，则被检查的处理单元可以与具有相似依赖性的其他处理单元（如果有的话）合并。如果被检查的处理单元不依赖于尚未处理的任何处理单元，则可将其发送到下一个可用的处理器进行编码。当处理单元被发送到处理器时，依赖于发送的处理单元的任何合并的处理单元也可以被发送到下一个可用的处理器。

3. 发明授权

US08270498B2 Dynamic dithering for video compression 有权
标题翻译：用于视频压缩的动态抖动
公开(公告)号：US08270498B2
公开(公告)日：2012-09-18
申请号：US12463859
申请日：2009-05-11
申请人： Gianluca Filippini , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Xiaosong Zhou , Ionut Hristodorescu
发明人： Gianluca Filippini , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Xiaosong Zhou , Ionut Hristodorescu
IPC分类号： H04N7/12 , G06K9/40
CPC分类号： H04N19/90 , H04N19/124 , H04N19/136 , H04N19/154 , H04N19/86
摘要： A method and device for dithering video from a decoder. The method and device provide: selecting a segment of video frames from the video; computing a noise map for the segment of the video, the noise map computed from differences among pixels selected from spatially-distributed sampling patterns in the segment; determining contours of quantization artifacts within the video frame based on the noise map and a histogram of pixel values in the video frame; computing a gradient measurement of pixel values along the contours; identifying regions along the contours of quantization artifacts to apply dithering based on the noise map and the gradient measurement; determining a dithering strength based on the noise map and the gradient measurement; and applying dithering noise to the identified regions at the determined dithering strength.
摘要翻译：一种从解码器抖动视频的方法和装置。该方法和设备提供：从视频中选择一段视频帧; 计算视频段的噪声映射，根据从片段中的空间分布采样模式中选择的像素之间的差异计算的噪声图; 基于噪声图和视频帧中的像素值的直方图确定视频帧内的量化伪像的轮廓; 计算沿着轮廓的像素值的梯度测量; 识别沿着量化伪影轮廓的区域，以基于噪声图和梯度测量应用抖动; 基于噪声图和梯度测量确定抖动强度; 并以确定的抖动强度对所识别的区域施加抖动噪声。

4. 发明授权

US08539092B2 Video streaming using multiple channels 有权
标题翻译：使用多个频道的视频流
公开(公告)号：US08539092B2
公开(公告)日：2013-09-17
申请号：US12407680
申请日：2009-03-19
申请人： Ionut Hristodorescu , Joe Abuan , James Oliver Normile , Hsi-Jung Wu
发明人： Ionut Hristodorescu , Joe Abuan , James Oliver Normile , Hsi-Jung Wu
IPC分类号： G06F15/16
CPC分类号： H04N7/24 , H04L65/4084 , H04L65/4092 , H04L65/607 , H04L65/608 , H04N21/234327 , H04N21/44004 , H04N21/44209 , H04N21/4621 , H04N21/4622 , H04N21/4788 , H04N21/631
摘要： Systems and methods for streaming video over multiple HTTP channels are provided. The client may have control over the channels, allowing the client to control the amount and source of data received. Data requested by the client may be separated into a set of layers, with each layer being assigned to a separate channel. The client may adjust the number of layers requested based on a variety of factors. Layers may be requested from multiple remote sources, providing the client with additional control over the specific bandwidth profile of received data.
摘要翻译：提供了通过多个HTTP通道流式传输视频的系统和方法。客户端可以控制信道，允许客户端控制接收到的数据的数量和来源。客户端请求的数据可以被分成一组层，每一层被分配到单独的信道。客户端可以根据各种因素调整请求的层数。可以从多个远程源请求层，为客户端提供对接收到的数据的特定带宽简档的附加控制。

5. 发明授权

US08855213B2 Restore filter for restoring preprocessed video image 有权
标题翻译：恢复预处理视频图像的过滤器
公开(公告)号：US08855213B2
公开(公告)日：2014-10-07
申请号：US12463913
申请日：2009-05-11
申请人： Gianluca Filippini , Xiaosong Zhou , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Ionut Hristodorescu
发明人： Gianluca Filippini , Xiaosong Zhou , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Ionut Hristodorescu
IPC分类号： H04N7/12 , H04N11/02 , H04N5/14 , G06K9/36 , H04N19/122 , H04N19/91 , H04N19/176 , H04N19/154 , H04N19/124 , H04N19/103 , H04N19/61
CPC分类号： H04N19/00084 , H04N19/103 , H04N19/122 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/61 , H04N19/91
摘要： Embodiments of the present invention provides a method and device for processing a source video. The method and device may provide computing an artifact estimation from differences among pixels selected from spatially-distributed sampling patterns in the source video; filtering the source video to produce a filtered version of the source video, computing a blending factor based on the artifact estimation in the source video, and computing an output video by blending the source video and the filtered version of the source video based on the blending factor.
摘要翻译：本发明的实施例提供了一种用于处理源视频的方法和设备。该方法和装置可以提供从源视频中从空间分布的采样模式中选择的像素之间的差异来计算伪像估计; 过滤源视频以产生源视频的过滤版本，基于源视频中的伪像估计来计算混合因子，以及基于混合来混合源视频和源视频的过滤版本来计算输出视频因子。

6. 发明授权

US08718129B2 Power saving decoder architecture 有权
标题翻译：省电解码器架构
公开(公告)号：US08718129B2
公开(公告)日：2014-05-06
申请号：US11934394
申请日：2007-11-02
申请人： Hsi-Jung Wu , Ionut Hristodorescu , James Oliver Normile
发明人： Hsi-Jung Wu , Ionut Hristodorescu , James Oliver Normile
IPC分类号： H04N7/12
CPC分类号： H04N19/436 , H04N19/103 , H04N19/156 , H04N19/176 , H04N19/42 , H04N19/44 , H04N19/61 , H04N19/88
摘要： A method and system are provided for decoding coded video data by turning off or not loading at least one functional unit or functional subunit of the decoder while decoding a portion of the coded video data. A schedule may be created prior to substantive decoding and then the schedule may be used to decode coded video data. The coded video data may be reordered based on the functional units or subunits the portions of the coded video data need for decoding. The portions of the coded video data are reordered into their original order in an output buffer after being decoded. The decoder may determine which functional units or subunits are needed for decoding based on administration information included with the coded video data. The decoder may decode portions of the coded video data in parallel.
摘要翻译：提供了一种方法和系统，用于通过在对一部分编码视频数据进行解码的同时关闭或不加载解码器的至少一个功能单元或功能子单元来解码编码的视频数据。可以在实质性解码之前创建调度，然后可以使用调度来解码经编码的视频数据。编码视频数据可以基于编码视频数据部分需要解码的功能单元或子单元重新排序。在解码之后，将编码的视频数据的部分重新排序成输出缓冲器中的原始顺序。解码器可以基于包括在编码视频数据中的管理信息来确定需要哪个功能单元或子单元进行解码。解码器可以并行地解码编码视频数据的部分。

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