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31. 发明申请

US20080013628A1 Computation Scheduling and Allocation for Visual Communication 有权
标题翻译：视觉通信的计算调度和分配
公开(公告)号：US20080013628A1
公开(公告)日：2008-01-17
申请号：US11457705
申请日：2006-07-14
申请人： Yan Lu , Feng Wu , Wei Pu , Shipeng Li
发明人： Yan Lu , Feng Wu , Wei Pu , Shipeng Li
IPC分类号： H04N7/12
CPC分类号： H04N19/567 , H04N19/127 , H04N19/156 , H04N19/172 , H04N19/19 , H04N19/196 , H04N19/43 , H04N19/533 , H04N19/557
摘要： Computation scheduling and allocation for visual communication is described. In one aspect, multiple frames of video data are encoded by allocating for at least a subset of inter-coded frames, on frame-by-frame basis, computational resources to encode the inter-coded frame. To this end, a computational budget to encode a current inter-coded frame is estimated. The estimate is based on the actual computational costs to encode a previous inter-coded frame of video data. Next, sets of operations associated with encoding the current inter-coded frame are analyzed to determine computational resources to implement the operations. If the computational resources exceed the computational budget, complexity of the operations is reduced until the associated computational resources are less than or equal to the computational budget. At this point, the current inter-coded frame is encoded using the operations and the computational budget. This process is repeated for the remaining inter-coded frames of video data.
摘要翻译：描述视觉通信的计算调度和分配。在一个方面，通过在逐帧的基础上为帧间编码帧的至少一个子集分配计算资源来编码帧间编码帧来编码多个视频数据帧。为此，估计用于编码当前帧间编码帧的计算预算。该估计是基于对先前的视频数据的帧间编码帧进行编码的实际计算成本。接下来，分析与当前帧间编码帧的编码相关联的操作集合，以确定用于实现操作的计算资源。如果计算资源超过计算预算，则减少操作的复杂度，直到相关的计算资源小于或等于计算预算。此时，使用操作和计算预算对当前帧间编码帧进行编码。对于视频数据的剩余帧间编码帧重复该过程。

32. 发明授权

US08208556B2 Video coding using spatio-temporal texture synthesis 有权
标题翻译：视频编码采用时空纹理合成
公开(公告)号：US08208556B2
公开(公告)日：2012-06-26
申请号：US11768862
申请日：2007-06-26
申请人： Xiaoyan Sun , Chunbo Zhu , Feng Wu , Shipeng Li
发明人： Xiaoyan Sun , Chunbo Zhu , Feng Wu , Shipeng Li
IPC分类号： H04N11/04
CPC分类号： G06T7/40 , G06T2207/10016 , H04N19/27 , H04N19/577
摘要： Systems and methods for video coding using spatio-temporal texture synthesis are described. In one aspect, a video data coding pipeline portion of the codec removes texture blocks from the video data to generate coded video data. The removed texture blocks are selected based on an objective determination that each of the remove texture blocks can be synthesized from spatio-temporal neighboring samples during decoding operations. The objective determinations are made using local block-based motion information independent of global motion models. An indication of which texture blocks were removed is provided to a decoder in addition to the coded video data. Decoding logic of the codec decodes the video data using a standard decoding algorithm. The decoding logic also restores the removed texture blocks via spatio-temporal texture synthesis to generate synthesized video data. The decoded and synthesized video data is presented to a user.
摘要翻译：描述使用时空纹理合成的视频编码的系统和方法。一方面，编解码器的视频数据编码流水线部分从视频数据中去除纹理块以产生编码视频数据。基于在解码操作期间可以从空时相邻采样中合成每个去除纹理块的目标确定来选择去除的纹理块。使用与全局运动模型无关的局部基于块的运动信息进行客观确定。去除了纹理块的指示除了编码的视频数据之外还提供给解码器。编解码器的解码逻辑使用标准解码算法解码视频数据。解码逻辑还通过空间 - 时间纹理合成恢复去除的纹理块，以产生合成的视频数据。解码和合成的视频数据被呈现给用户。

33. 发明授权

US08130830B2 Enhancement layer switching for scalable video coding 有权
标题翻译：用于可扩展视频编码的增强层交换
公开(公告)号：US08130830B2
公开(公告)日：2012-03-06
申请号：US12112821
申请日：2008-04-30
申请人： Jizheng Xu , Feng Wu , Shipeng Li
发明人： Jizheng Xu , Feng Wu , Shipeng Li
IPC分类号： H04N7/12 , H04N11/02
CPC分类号： H04N21/2662 , H04N19/115 , H04N19/164 , H04N19/187 , H04N19/34 , H04N19/37 , H04N19/61 , H04N19/70 , H04N21/234327 , H04N21/2402 , H04N21/8451
摘要： An exemplary system includes a data encoder generating a base layer bitstream encoded at a base bit-rate, and a plurality of enhancement layer bitstreams encoded at different enhancement layer bit-rates, and a bitstream selection module selecting one of the enhancement layer bitstreams every video frame based on available channel bandwidth. A method includes transmitting a first enhancement layer bitstream encoded at a first bit-rate, detecting a transition in network bandwidth through a switching bit-rate, and transmitting a second enhancement layer bitstream encoded at a second bit-rate based on the transition in network bandwidth.
摘要翻译：一个示例性系统包括产生以基本比特率编码的基本层比特流的数据编码器和以不同增强层比特率编码的多个增强层比特流，以及比特流选择模块，每个视频选择增强层比特流之一基于可用信道带宽的帧。一种方法包括发送以第一比特率编码的第一增强层比特流，通过切换比特率检测网络带宽中的转换，以及基于网络中的转换来发送以第二比特率编码的第二增强层比特流带宽。

34. 发明授权

US07664185B2 Systems and methods with error resilience in enhancement layer bitstream of scalable video coding 失效
标题翻译：在可扩展视频编码的增强层比特流中具有错误弹性的系统和方法
公开(公告)号：US07664185B2
公开(公告)日：2010-02-16
申请号：US10978277
申请日：2004-10-29
申请人： Ya-Qin Zhang , Shipeng Li , Feng Wu , Rong Yan
发明人： Ya-Qin Zhang , Shipeng Li , Feng Wu , Rong Yan
IPC分类号： H04N7/18
CPC分类号： H04N19/29 , H04N19/34 , H04N19/68 , H04N19/89
摘要： A scalable layered video coding scheme that encodes video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video, adds error resilience to the enhancement layer. Unique resynchronization marks are inserted into the enhancement layer bitstream in headers associated with each video packet, headers associated with each bit plane, and headers associated with each video-of-plane (VOP) segment. Following transmission of the enhancement layer bitstream, the decoder tries to detect errors in the packets. Upon detection, the decoder seeks forward in the bitstream for the next known resynchronization mark. Once this mark is found, the decoder is able to begin decoding the next video packet. With the addition of many resynchronization marks within each frame, the decoder can recover very quickly and with minimal data loss in the event of a packet loss or channel error in the received enhancement layer bitstream. The video coding scheme also facilitates redundant encoding of header information from the higher-level VOP header down into lower level bit plane headers and video packet headers. Header extension codes are added to the bit plane and video packet headers to identify whether the redundant data is included.
摘要翻译：将视频数据帧编码成多层的可分级的分层视频编码方案，包括具有越来越高质量视频的较低质量视频和多个增强层的基本层，向增强层增加了错误恢复能力。将独特的再同步标记插入到与每个视频分组相关联的报头中的增强层比特流中，与每个位平面相关联的报头以及与每个视频平面（VOP）段相关联的报头。在传输增强层比特流之后，解码器尝试检测分组中的错误。在检测到时，解码器在比特流中向前寻找下一个已知的再同步标记。一旦找到该标记，解码器就可以开始对下一个视频数据包进行解码。通过在每个帧内添加许多重新同步标记，解码器可以在接收到的增强层比特流中的分组丢失或信道错误的情况下非常快速地恢复并且具有最小的数据丢失。视频编码方案还有助于将标题信息从较高级别的VOP头部冗余编码到较低级位平面头部和视频分组头部。标题扩展码被添加到位平面和视频分组报头，以标识是否包括冗余数据。

35. 发明授权

US07583730B2 Drifting reduction and macroblock-based control in progressive fine granularity scalable video coding 有权
公开(公告)号：US07583730B2
公开(公告)日：2009-09-01
申请号：US11070905
申请日：2005-03-03
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang , Bing Zeng , Xiaoyan Sun
IPC分类号： H04N7/12
CPC分类号： H04N19/34 , H04N19/51
摘要： A motion-compensated video encoding scheme employs progressive fine-granularity layered coding to encode macroblocks of video data into frames having multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video. Some of the enhancement layers in a current frame are predicted from different quality layers in reference frames. The video encoding scheme estimates drifting errors during the encoding and chooses a coding mode for each macroblock in the enhancement layer to maximize high coding efficiency while minimizing drifting errors.

36. 发明授权

US07003035B2 Video coding methods and apparatuses 有权
公开(公告)号：US07003035B2
公开(公告)日：2006-02-21
申请号：US10186284
申请日：2002-06-27
申请人： Alexandros Tourapis , Feng Wu , Shipeng Li
发明人： Alexandros Tourapis , Feng Wu , Shipeng Li
IPC分类号： H04N7/12
CPC分类号： H04N19/109 , H04N19/147 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/56 , H04N19/573 , H04N19/577
摘要： Video coding methods and apparatuses are provided that make use of various models and/or modes to significantly improve coding efficiency especially for high/complex motion sequences. The methods and apparatuses take advantage of the temporal and/or spatial correlations that may exist within portions of the frames, e.g., at the Macroblocks level, etc. The methods and apparatuses tend to significantly reduce the amount of data required for encoding motion information while retaining or even improving video image quality.

37. 发明申请

US20050129130A1 Color space coding framework 审中-公开
标题翻译：颜色空间编码框架
公开(公告)号：US20050129130A1
公开(公告)日：2005-06-16
申请号：US10733876
申请日：2003-12-10
申请人： Jacky Shen , Feng Wu , Lujun Yuan , Shipeng Li
发明人： Jacky Shen , Feng Wu , Lujun Yuan , Shipeng Li
IPC分类号： H04N7/24 , H04N1/64 , H04N9/64 , H04N11/04 , H04N19/00 , H04N7/12
CPC分类号： H04N1/646 , H04N19/117 , H04N19/176 , H04N19/186 , H04N19/30 , H04N19/40 , H04N19/59 , H04N19/61 , H04N19/635 , H04N19/80
摘要： A coding framework that provides conversions between one or more video formats without the use of a transcoder. A video information stream that includes color information formatted in accordance with a first color space sampling format is split into a base stream and an enhanced stream. The base stream is formatted in accordance with a second color space sampling format. The enhanced stream includes enhanced information that when combined with the base stream re-constructs the first format. During encoding, the enhanced stream may be encoded using spatial information related to the base information stream. An output stream of the encoded base stream and encoded enhanced stream may be interleaved, concatenated, or include independent files for the encoded base stream and the encoded enhanced stream.
摘要翻译：一种编码框架，可在不使用代码转换器的情况下提供一种或多种视频格式之间的转换。包括根据第一颜色空间采样格式格式化的颜色信息的视频信息流被分割成基本流和增强流。基本流根据第二颜色空间采样格式进行格式化。增强流包括增强的信息，当与基本流合并时重新构建第一格式。在编码期间，可以使用与基本信息流相关的空间信息对增强流进行编码。编码的基本流和编码的增强流的输出流可以被交错，级联或包括用于编码的基本流和编码的增强流的独立文件。

38. 发明授权

US08406300B2 Video coding 有权
标题翻译：视频编码
公开(公告)号：US08406300B2
公开(公告)日：2013-03-26
申请号：US12474821
申请日：2009-05-29
申请人： Alexandros Tourapis , Feng Wu , Shipeng Li
发明人： Alexandros Tourapis , Feng Wu , Shipeng Li
IPC分类号： H04N11/04
CPC分类号： H04N19/109 , H04N19/147 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/56 , H04N19/573 , H04N19/577
摘要： Improved video coding is described to encode video data within a sequence of video frames. To this end, at least a portion of a reference frame is encoded to include motion information associated with the portion of the reference frame. At least a portion of a predictable frame that includes video data predictively correlated to said portion of said reference frame is defined based on the motion information. At least said portion of the predictable frame is encoded without including corresponding motion information and including mode identifying data. The mode identifying data indicate that the encoded portion of the predictable frame can be directly derived using at least the motion information associated with the portion of the reference frame.
摘要翻译：描述了改进的视频编码以对视频帧序列内的视频数据进行编码。为此，参考帧的至少一部分被编码以包括与参考帧的该部分相关联的运动信息。基于运动信息来定义包括与所述参考帧的所述部分预测相关的视频数据的可预测帧的至少一部分。可预测帧的至少所述部分被编码而不包括对应的运动信息并且包括模式识别数据。模式识别数据指示可以使用至少与参考帧的部分相关联的运动信息直接导出可预测帧的编码部分。

39. 发明授权

US08379722B2 Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures 有权
标题翻译：用于预测（P）和双向预测（B）图像的时间戳独立运动矢量预测
公开(公告)号：US08379722B2
公开(公告)日：2013-02-19
申请号：US11465938
申请日：2006-08-21
申请人： Alexandros Tourapis , Shipeng Li , Feng Wu , Gary J. Sullivan
发明人： Alexandros Tourapis , Shipeng Li , Feng Wu , Gary J. Sullivan
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/00684 , H04N19/103 , H04N19/105 , H04N19/109 , H04N19/137 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70
摘要： Methods and apparatuses are provided for achieving improved video coding efficiency through the use of Motion Vector Predictors (MVPs) for the encoding or decoding of motion parameters within the calculation of the motion information in B pictures and/or P pictures. Certain exemplary methods and apparatuses selectively apply temporal and/or spatial prediction. Rate Distortion Optimization (RDO) techniques are also applied in certain methods and apparatuses to further help improve coding efficiency.
摘要翻译：提供了通过在B图像和/或P图像中的运动信息的计算中通过使用用于运动参数的编码或解码的运动矢量预测器（MVP）来实现改进的视频编码效率的方法和装置。某些示例性方法和装置选择性地应用时间和/或空间预测。速率失真优化（RDO）技术也应用于某些方法和设备中，以进一步帮助提高编码效率。

40. 发明授权

US08374245B2 Spatiotemporal prediction for bidirectionally predictive(B) pictures and motion vector prediction for multi-picture reference motion compensation 有权
标题翻译：用于双向参考运动补偿的双向预测（B）图像和运动矢量预测的时空预测
公开(公告)号：US08374245B2
公开(公告)日：2013-02-12
申请号：US11525059
申请日：2006-09-20
申请人： Alexandros Tourapis , Shipeng Li , Feng Wu
发明人： Alexandros Tourapis , Shipeng Li , Feng Wu
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/577 , H04N19/102 , H04N19/105 , H04N19/107 , H04N19/137 , H04N19/142 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/56 , H04N19/573 , H04N19/58 , H04N19/593 , H04N19/61 , H04N19/87
摘要： Several improvements for use with Bidirectionally Predictive (B) pictures within a video sequence are provided. In certain improvements Direct Mode encoding and/or Motion Vector Prediction are enhanced using spatial prediction techniques. In other improvements Motion Vector prediction includes temporal distance and subblock information, for example, for more accurate prediction. Such improvements and other presented herein significantly improve the performance of any applicable video coding system/logic.
摘要翻译：提供了一些与视频序列中的双向预测（B）图像一起使用的改进。在某些改进中，使用空间预测技术来增强直接模式编码和/或运动矢量预测。在其他改进中，运动矢量预测包括时间距离和子块信息，例如用于更准确的预测。这样的改进和其它呈现显着改善了任何适用的视频编码系统/逻辑的性能。

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