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1. 发明授权

US09532066B2 Motion vector prediction 有权
标题翻译：运动矢量预测
公开(公告)号：US09532066B2
公开(公告)日：2016-12-27
申请号：US13245668
申请日：2011-09-26
申请人： Wei-Jung Chien , Peisong Chen , Marta Karczewicz
发明人： Wei-Jung Chien , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/26 , H04N19/463 , H04N19/52 , H04N19/176 , H04N19/70 , H04N19/46 , H04N19/196 , H04N19/61
CPC分类号： H04N19/463 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/52 , H04N19/61 , H04N19/70
摘要： A method of coding video data includes determining a candidate motion vector for each of one or more candidate portions of a video frame and determining a current motion vector for a current portion of a current frame. The current motion vector identifies a portion of a reference frame that at least partially matches the current portion of the current frame. The method also includes calculating a motion vector difference between the current motion vector and each of the candidate motion vectors, selecting one of the candidate motion vectors based on the calculated motion vector differences, signaling an index identifying the candidate portion having the selected one of the candidate motion vectors, and signaling the corresponding motion vector difference calculated with respect to the selected one of the candidate motion vectors.
摘要翻译：一种编码视频数据的方法包括确定视频帧的一个或多个候选部分中的每一个的候选运动矢量，并确定当前帧的当前部分的当前运动矢量。当前运动矢量标识至少部分匹配当前帧的当前部分的参考帧的一部分。该方法还包括：计算当前运动矢量与每个候选运动矢量之间的运动矢量差，基于所计算的运动矢量差选择候选运动矢量之一，发信号通知识别候选部分的索引，候选运动矢量，并且发送相对于所选择的一个候选运动矢量计算的对应运动矢量差。

2. 发明授权

US09226045B2 Signaling attributes for network-streamed video data 有权
标题翻译：网络流视频数据的信令属性
公开(公告)号：US09226045B2
公开(公告)日：2015-12-29
申请号：US13154285
申请日：2011-06-06
申请人： Ying Chen , Peisong Chen , Marta Karczewicz
发明人： Ying Chen , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/173 , H04N21/81 , H04N21/218 , H04N21/235 , H04N21/2365 , H04N21/435 , H04N21/61 , H04N21/658 , H04N21/84 , H04N19/597 , H04N19/70
CPC分类号： H04N21/816 , H04N19/597 , H04N19/70 , H04N21/21805 , H04N21/235 , H04N21/2365 , H04N21/435 , H04N21/6125 , H04N21/6581 , H04N21/84
摘要： In one example, an apparatus for signaling information for video data includes a processor configured to receive video data for two or more views of a scene, form a representation comprising a subset of the two or more views, and send, to a client device, as a part of a manifest of the representation, information indicative of a maximum number of views in the representation that can be targeted for output. An apparatus for receiving information for video data may receive the manifest including the information indicating the maximum number of views and request at least a portion of the video data of the representation based at least in part on a maximum number of views that can be output by the apparatus and the information indicative of the maximum number of views in the representation that can be targeted for output.
摘要翻译：在一个示例中，用于为视频数据发送信息的装置包括：处理器，被配置为接收场景的两个或更多个视图的视频数据，形成包括两个或更多视图的子集的表示，并且向客户端设备发送，作为表示清单的一部分，指示表示中可以针对输出的最大视图数量的信息。用于接收视频数据的信息的装置可以至少部分地基于最大数量的视图可以输出视频数据的最大数量，所述装置包括指示最大视图数量的信息，并请求至少部分视频数据的视频数据。该装置和指示可以针对输出的表示中的最大视图数量的信息。

3. 发明授权

US09113147B2 Scalability techniques based on content information 有权
标题翻译：基于内容信息的可扩展性技术
公开(公告)号：US09113147B2
公开(公告)日：2015-08-18
申请号：US11528140
申请日：2006-09-26
申请人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Tao Tian , Phanikumar Bhamidipati , Fang Shi , Peisong Chen , Sitaraman Ganapathy Subramania , Seyfullah Halit Oguz
发明人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Tao Tian , Phanikumar Bhamidipati , Fang Shi , Peisong Chen , Sitaraman Ganapathy Subramania , Seyfullah Halit Oguz
IPC分类号： H04L12/54 , H04N19/36 , H04N19/61 , H04N5/14 , H04N19/149 , H04N19/89 , H04N19/187 , H04N19/40 , H04N19/115 , H04N19/107 , H04N19/132 , H04N19/194 , H04N19/154 , H04N19/159 , H04N19/87 , H04N21/2389 , H04N19/114 , H04N21/235 , H04N19/172 , H04N19/65 , H04N19/147 , H04N19/137 , H04N7/01 , H04N19/18 , H04N19/86 , H04N19/30 , H04N19/577 , H04N19/142 , H04N19/14 , H04N5/21 , H04N21/2343
CPC分类号： H04N19/40 , H04N5/144 , H04N5/147 , H04N5/21 , H04N7/0115 , H04N7/012 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/147 , H04N19/149 , H04N19/154 , H04N19/159 , H04N19/172 , H04N19/18 , H04N19/187 , H04N19/194 , H04N19/30 , H04N19/36 , H04N19/577 , H04N19/61 , H04N19/65 , H04N19/86 , H04N19/87 , H04N19/89 , H04N21/234309 , H04N21/2353 , H04N21/2389
摘要： Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes classifying content of multimedia data, and encoding the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data group comprises a coefficient and the second data group comprises a first differential refinement associated with the first data group coefficient. An apparatus for using content information for encoding multimedia data includes a content classifying module configured to classify content of multimedia data and provide content classification data, and an encoder configured to encode the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data group comprises a coefficient and the second data group comprises a first differential refinement associated with the first data group coefficient.
摘要翻译：描述了使用内容信息来编码多媒体数据的装置和方法。一种处理多媒体数据的方法，包括：根据内容分类，对多媒体数据的内容进行分类，并将第一数据组和第二数据组中的多媒体数据进行编码，其中第一数据组包括系数，第二数据组包括与第一数据组系数相关的第一差分精化。一种使用内容信息来编码多媒体数据的装置包括：内容分类模块，被配置为对多媒体数据的内容进行分类并提供内容分类数据;以及编码器，被配置为基于第一数据组和第二数据组中的多媒体数据进行编码所述内容分类，其中所述第一数据组包括系数，并且所述第二数据组包括与所述第一数据组系数相关联的第一差分精化。

4. 发明授权

US08902972B2 Rate-distortion quantization for context-adaptive variable length coding (CAVLC) 有权
标题翻译：用于上下文自适应可变长度编码（CAVLC）的速率失真量化
公开(公告)号：US08902972B2
公开(公告)日：2014-12-02
申请号：US12338838
申请日：2008-12-18
申请人： Marta Karczewicz , Peisong Chen , Yan Ye
发明人： Marta Karczewicz , Peisong Chen , Yan Ye
IPC分类号： H04N7/26 , H04N19/126 , H04N19/124
CPC分类号： H04N19/124 , H04N19/126
摘要： In general, this disclosure provides techniques for quantization of the coefficients of video blocks in a manner that can achieve a desirable balance of rate and distortion. The described techniques may analyze a plurality of quantization levels associated with each individual coefficient to select the quantization level for the individual coefficients that results in a lowest coding cost. Since CAVLC does not encode each coefficient independently, the techniques may compute the coding costs for each of the candidate quantization levels associated with the individual coefficients based on quantization levels selected for previously quantized coefficients and estimated (or predicted) quantization levels for subsequent coefficients of a coefficient vector. The quantization levels for each of the coefficients are selected based on computed coding costs to obtain a set of quantized coefficients that minimize a rate-distortion model.
摘要翻译：通常，本公开提供了以可以实现速率和失真的期望平衡的方式来量化视频块的系数的技术。所描述的技术可以分析与每个单独系数相关联的多个量化级别，以选择导致最低编码成本的各个系数的量化级别。由于CAVLC不独立地对每个系数进行编码，所以这些技术可以基于针对先前量化的系数选择的量化级别和针对先前量化的系数的估计（或预测的）量化级别计算与各个系数相关联的每个候选量化级别的编码成本，系数向量。基于计算的编码成本来选择每个系数的量化级别，以获得最小化速率 - 失真模型的一组量化系数。

5. 发明授权

US08879856B2 Content driven transcoder that orchestrates multimedia transcoding using content information 有权
标题翻译：内容驱动的代码转换器，使用内容信息编排多媒体代码转换
公开(公告)号：US08879856B2
公开(公告)日：2014-11-04
申请号：US11528141
申请日：2006-09-26
申请人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Tao Tian , Phanikumar Bhamidipati , Fang Shi , Peisong Chen , Sitaraman Ganapathy Subramania , Seyfullah Halit Oguz
发明人： Vijayalakshmi R. Raveendran , Gordon Kent Walker , Tao Tian , Phanikumar Bhamidipati , Fang Shi , Peisong Chen , Sitaraman Ganapathy Subramania , Seyfullah Halit Oguz
IPC分类号： G06K9/36 , H04B1/66 , H04N19/86 , H04N19/132 , H04N19/149 , H04N19/89 , H04N19/172 , H04N19/154 , H04N19/40 , H04N21/2343 , H04N19/142 , H04N5/14 , H04N19/159 , H04N19/61 , H04N19/36 , H04N19/87 , H04N5/21 , H04N19/14 , H04N19/18 , H04N19/187 , H04N19/147 , H04N19/137 , H04N19/114 , H04N19/115 , H04N19/30 , H04N19/65 , H04N19/577 , H04N21/235 , H04N19/107 , H04N21/2389 , H04N19/194 , H04N7/01
CPC分类号： H04N19/40 , H04N5/144 , H04N5/147 , H04N5/21 , H04N7/0115 , H04N7/012 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/147 , H04N19/149 , H04N19/154 , H04N19/159 , H04N19/172 , H04N19/18 , H04N19/187 , H04N19/194 , H04N19/30 , H04N19/36 , H04N19/577 , H04N19/61 , H04N19/65 , H04N19/86 , H04N19/87 , H04N19/89 , H04N21/234309 , H04N21/2353 , H04N21/2389
摘要： Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes receiving multimedia data, and encoding the multimedia data into a first data group and a second data group based on content of the multimedia data, the first data group being configured to be independently decodable from the second data group, and wherein the first and second data groups are encoded at different quality levels. The method can also include classifying the content of the multimedia data and encoding the multimedia data based on the content classification.
摘要翻译：描述了使用内容信息来编码多媒体数据的装置和方法。一种处理多媒体数据的方法，包括接收多媒体数据，并根据多媒体数据的内容将多媒体数据编码成第一数据组和第二数据组，第一数据组被配置为可从第二数据组独立解码，并且其中所述第一和第二数据组以不同的质量级别进行编码。该方法还可以包括基于内容分类对多媒体数据的内容进行分类和对多媒体数据进行编码。

6. 发明授权

US08619856B2 Video coding with large macroblocks 有权
标题翻译：具有大宏块的视频编码
公开(公告)号：US08619856B2
公开(公告)日：2013-12-31
申请号：US12562438
申请日：2009-09-18
申请人： Peisong Chen , Yan Ye , Marta Karczewicz
发明人： Peisong Chen , Yan Ye , Marta Karczewicz
IPC分类号： H04N7/12
CPC分类号： H04N19/103 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/70
摘要： Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16×16 pixels, for example, 64×64 pixels. Each macroblock may be partitioned into two or more partitions, and two or more of the partitions may be encoded using different modes. In one example, an apparatus includes a video encoder configured to receive a video block having a size of more than 16×16 pixels, partition the block into partitions, encode one of the partitions using a first encoding mode, encode another of the partitions using a second encoding mode different from the first encoding mode, and generate block-type syntax information that indicates the size of the block and identifies the partitions and the encoding modes used to encode the partitions.
摘要翻译：描述了使用比常规视频编码和解码标准规定的宏块大的宏块对数字视频数据进行编码和解码的技术。例如，这些技术包括使用包括大于16×16像素（例如，64×64像素）的宏块对视频流进行编码和解码。每个宏块可以被划分成两个或更多个分区，并且可以使用不同的模式对两个或更多个分区进行编码。在一个示例中，一种装置包括：视频编码器，被配置为接收尺寸大于16×16像素的视频块，将块划分成分区，使用第一编码模式对其中一个分区进行编码，使用与第一编码模式不同的第二编码模式，并生成指示块大小并识别用于对分区进行编码的分区和编码模式的块型语法信息。

7. 发明授权

US08594187B2 Efficient video block mode changes in second pass video coding 有权
标题翻译：高效视频块模式在二次视频编码中发生变化
公开(公告)号：US08594187B2
公开(公告)日：2013-11-26
申请号：US11777395
申请日：2007-07-13
申请人： Peisong Chen , Phanikumar Bhamidipati , Sitaraman Ganapathy Subramania , Amit Rohatgi , Seyfullah Halit Oguz , Scott T. Swazey
发明人： Peisong Chen , Phanikumar Bhamidipati , Sitaraman Ganapathy Subramania , Amit Rohatgi , Seyfullah Halit Oguz , Scott T. Swazey
IPC分类号： H04N11/02
CPC分类号： H04N19/194 , H04N19/109 , H04N19/124 , H04N19/147 , H04N19/15 , H04N19/164 , H04N19/176 , H04N19/19 , H04N19/61
摘要： This disclosure describes techniques for second pass video coding in a multi-pass video coding scenario. The coding modes for some video blocks encoded during a second pass may be changed relative to the coding modes used for such video blocks in the first pass. However, motion information does not change for those video blocks that have the changed modes. In particular, mode changes can be made in the second coding pass relative to the modes used in the first coding pass without changing the manner in which motion information will be derived at the decoder, e.g., due to similarities between the original modes of the first pass and changed modes used in the second pass. The second pass coding techniques may also include quantization parameter adjustments, and the mode changes can cause such quantization parameter adjustments to have more profound refinements effects on the second pass coding.
摘要翻译：本公开描述了在多遍视频编码场景中的第二遍视频编码的技术。在第二遍期间编码的一些视频块的编码模式可以相对于在第一遍中用于这种视频块的编码模式而改变。但是，对于那些具有改变模式的视频块，运动信息不会改变。特别地，相对于在第一编码通道中使用的模式，可以在第二编码通过中进行模式改变，而不改变在解码器处将导出运动信息的方式，例如，由于第一编码第二次通过中使用的通过和更改模式。第二遍编码技术还可以包括量化参数调整，并且模式改变可以导致这样的量化参数调整对第二遍编码具有更深刻的细化效果。

8. 发明授权

US08565301B2 Quasi-constant-quality rate control with look-ahead 失效
标题翻译：准恒定质量率控制与先行
公开(公告)号：US08565301B2
公开(公告)日：2013-10-22
申请号：US11373404
申请日：2006-03-10
申请人： Tao Tian , Peisong Chen , Vijayalakshmi R. Raveendran
发明人： Tao Tian , Peisong Chen , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/12
CPC分类号： H04N21/2383 , H04L65/607 , H04N19/115 , H04N19/126 , H04N19/139 , H04N19/14 , H04N19/149 , H04N19/159 , H04N19/176 , H04N19/177 , H04N19/179 , H04N19/194 , H04N19/196 , H04N19/577 , H04N21/2187 , H04N21/2365 , H04N21/23655 , H04N21/2385 , H04N21/4347
摘要： Methods and apparatus efficiently encode multimedia data, such as live video streams. An encoding complexity of a predetermined time interval, such as 1 second, is estimated before the actual encoding that will be used. This permits the actual encoding to be performed with an a priori estimate of complexity, permitting the bits allocated for the predetermined time interval (bit rate) to be efficiently allocated within the predetermined time interval. Moreover, the estimated complexity can be provided to a device, such as a multiplexer, which can then allocate the available bandwidth for a collection of multiplexed video channels according to the encoding complexity anticipated for those video channels, which then permits the quality of a particular channel to remain relatively constant even when the bandwidth for the collection of multiplexed video channels is relatively constant.
摘要翻译：方法和设备有效地对多媒体数据进行编码，例如直播视频流。在将要使用的实际编码之前估计预定时间间隔（例如1秒）的编码复杂度。这允许以先前的复杂度估计来执行实际编码，允许在预定时间间隔内有效地分配在预定时间间隔（比特率）中分配的比特。此外，可以将估计的复杂度提供给诸如多路复用器的设备，然后可以根据对于那些视频通道预期的编码复杂度来为多路复用的视频信道的集合分配可用带宽，然后允许特定的即使当用于收集多路复用视频信道的带宽相对恒定时，信道保持相对恒定。

9. 发明申请

US20120294360A1 CHANNEL SWITCH FRAME 有权
标题翻译：通道开关框架
公开(公告)号：US20120294360A1
公开(公告)日：2012-11-22
申请号：US13552808
申请日：2012-07-19
申请人： Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramanian , PhaniKumar Bhamidipati
发明人： Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramanian , PhaniKumar Bhamidipati
IPC分类号： H04N7/26
CPC分类号： H04N21/4384 , H04N19/107 , H04N19/124 , H04N19/154 , H04N19/164 , H04N19/172 , H04N19/187 , H04N19/33 , H04N19/61 , H04N19/895 , H04N21/23439 , H04N21/631 , H04N21/8451 , H04N21/8456
摘要： Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.
摘要翻译：处理多媒体数据的方法和设备，可实现更快的信道采集，改进误差恢复和提高效率。编码器装置使用帧间编码对多媒体数据的第一部分进行编码以产生第一版本，并且使用帧内编码对多媒体数据的第一部分进行编码以生成第二版本。解码器装置接收多媒体数据的第一部分的第一版本，其中第一版本是帧间编码的，接收多媒体数据的第一部分的第二版本，其中第二版本被帧内编码，并且选择性地解码第一版本和第二个接收的版本。

10. 发明授权

US08315307B2 Method and apparatus for frame prediction in hybrid video compression to enable temporal scalability 有权
标题翻译：用于混合视频压缩中的帧预测的方法和装置，以实现时间可扩展性
公开(公告)号：US08315307B2
公开(公告)日：2012-11-20
申请号：US11093874
申请日：2005-03-29
申请人： Peisong Chen , Vijayalakshmi R. Raveendran
发明人： Peisong Chen , Vijayalakshmi R. Raveendran
IPC分类号： H04N7/12
CPC分类号： H04N19/587 , H04N19/132 , H04N19/31 , H04N19/51
摘要： The invention is directed to a method and apparatus for providing temporal scaling frames for use in digital multimedia. The method involves using a removable unidirectional predicted temporal scaling frame communication along with intra-coded frames and/or inter-coded frames. The method involves the ability to selectively remove the temporal scaling frame(s) from being transmitted or decoded in order to satisfy, for example, power limits, data rate limits, computational limits or channel conditions. Examples presented include encoders, transcoders and decoders where the decision to drop the removable temporal scaling frames could be made.
摘要翻译：本发明涉及用于提供用于数字多媒体的时间缩放帧的方法和装置。该方法涉及使用可移动单向预测的时间缩放帧通信以及帧内编码帧和/或帧间编码帧。该方法涉及到能够选择性地去除时间缩放帧以被传送或解码以满足例如功率限制，数据速率限制，计算限制或信道条件。提出的示例包括编码器，代码转换器和解码器，其中可以进行放弃可移动时间缩放框架的决定。

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