公开(公告)号：US08121418B2

公开(公告)日：2012-02-21

申请号：US12840229

申请日：2010-07-20

申请人： Yan Ye ,  Yiliang Bao

发明人： Yan Ye ,  Yiliang Bao

IPC分类号： G06K9/36

CPC分类号： H04N19/34 ,  H04N19/13 ,  H04N19/14 ,  H04N19/46 ,  H04N19/61

摘要： A method for decoding significance coefficients in an encoded video sequence is described. An encoded video bitstream is received. Codebook table information is retrieved from the bitstream. Significance symbols are decoded using the retrieved codebook table information. Significance coefficients are decoded using the significance symbols. A plurality of transform coefficients is dequantized. An inverse transform is applied to a residual signal. A video sequence is constructed. A method for coding significance coefficients in a video sequence is also described.

摘要翻译： 描述了一种用于对编码视频序列中的有效系数进行解码的方法。 接收编码视频位流。 从比特流中检索码本表信息。 使用检索到的码本表信息对意义符号进行解码。 使用有效符号对重要性系数进行解码。 多个变换系数被去量化。 对残差信号进行逆变换。 构建视频序列。 还描述了用于对视频序列中的有效系数进行编码的方法。

公开(公告)号：US20120013748A1

公开(公告)日：2012-01-19

申请号：US13243507

申请日：2011-09-23

申请人： Kenneth Stanwood ,  David Gell ,  Yiliang Bao

发明人： Kenneth Stanwood ,  David Gell ,  Yiliang Bao

IPC分类号： H04N17/00

CPC分类号： H04L47/32 ,  H04L41/5022 ,  H04L41/509 ,  H04L47/2408 ,  H04L47/30 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/64792 ,  H04N21/8451

摘要： Capacity and spectrum constrained, multiple-access communication systems optimize performance by selectively discarding packets. Changes in the communication systems may be driven using control responses. Control responses include intelligent discard of network packets under capacity constrained conditions. Packets are prioritized and discard decisions are made based on the prioritization. Various embodiments provide an interactive response by selectively discarding packets to enhance perceived and actual system throughput, provide a reactive response by selectively discarding data packets based on their relative impact to service quality to mitigate oversubscription, provide a proactive response by discarding packets based on predicted oversubscription, or provide a combination thereof. Packets may be prioritized for discard using correlations between discards and bandwidth reduction and quality degradation. The quality degradation for video packets may be measured objectively.

摘要翻译： 容量和频谱受限，多址通信系统通过选择性地丢弃数据包来优化性能。 可以使用控制响应来驱动通信系统的变化。 控制响应包括容量受限条件下网络数据包的智能丢弃。 数据包的优先级排序和丢弃决策是基于优先级排序。 各种实施例通过选择性地丢弃分组以增强感知和实际的系统吞吐量，提供交互式响应，通过基于它们对服务质量的相对影响来选择性地丢弃数据分组来提供反应性响应，以减轻超额预订，通过基于预测的超额预订来丢弃分组来提供主动响应 ，或提供其组合。 可以使用丢弃之间的相关性和带宽降低和质量降级来优化丢弃丢包。 可以客观地测量视频分组的质量下降。

公开(公告)号：US20070160133A1

公开(公告)日：2007-07-12

申请号：US11506348

申请日：2006-08-18

申请人： Yiliang Bao ,  Yan Ye

发明人： Yiliang Bao ,  Yan Ye

IPC分类号： H04B1/66 ,  H04N11/04

CPC分类号： H04N19/34 ,  H04N19/105 ,  H04N19/159 ,  H04N19/33 ,  H04N19/59 ,  H04N19/61

摘要： The disclosure is directed to video coding techniques that support spatial scalability using a generalized fine granularity scalability (FGS) approach. Various degrees of spatial scalability can be achieved by sending spatially scalable enhancement layers in a generalized FGS format. Spatially scalable enhancement bitstreams can be arbitrarily truncated to conform to network conditions, channel conditions and/or decoder capabilities. Coding coefficients and syntax elements for spatial scalability can be embedded in a generalized FGS format. For good network or channel conditions, and/or enhanced decoder capabilities, additional bits received via one or more enhancement layers permit encoded video to be reconstructed with increased spatial resolution and continuously improved video quality across different spatial resolutions. The techniques permit spatial scalability layers to be coded as FGS layers, rather than discrete layers, permitting arbitrary scalability. The techniques may include features to curb error propagation that may otherwise arise due to partial decoding.

摘要翻译： 本公开涉及使用广义细粒度可伸缩性（FGS）方法来支持空间可伸缩性的视频编码技术。 可以通过以广义的FGS格式发送空间可缩放的增强层来实现不同程度的空间可伸缩性。 空间可缩放的增强比特流可以被任意地截断以符合网络条件，信道条件和/或解码器能力。 用于空间可扩展性的编码系数和语法元素可以嵌入广义的FGS格式。 对于良好的网络或信道条件和/或增强的解码器能力，经由一个或多个增强层接收到的附加比特允许以增加的空间分辨率重建经过编码的视频并且跨越不同的空间分辨率连续改善视频质量。 这些技术允许空间可扩展性层被编码为FGS层，而不是离散层，允许任意的可扩展性。 这些技术可以包括抑制由于部分解码而可能出现的误差传播的特征。

公开(公告)号：US09065779B2

公开(公告)日：2015-06-23

申请号：US13236308

申请日：2011-09-19

申请人： Kenneth Stanwood ,  David Gell ,  Yiliang Bao

发明人： Kenneth Stanwood ,  David Gell ,  Yiliang Bao

IPC分类号： H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04L12/16 ,  H04L12/863 ,  H04L12/801 ,  H04W72/12

CPC分类号： H04L47/623 ,  H04L47/12 ,  H04W72/1242

摘要： Systems and methods provide a weight-based scheduling system that incorporates end-user application awareness and can be used with scheduling groups that contain data streams from heterogeneous applications. Individual data queues within a scheduling group can be created based on application class, specific application, individual data streams or some combination thereof. Application information and Application Factors (AF) are used to modify scheduler weights to differentiate between data streams assigned to a scheduling group. Dynamic AF settings may adjust relative importance of user applications to maximize user Quality of Experience (QoE) in response to recurring network patterns, one-time events, application characteristics, protocol characteristics, device characteristics, service level agreements, or combinations thereof. Scheduling weights may be dynamic and incorporate the notions of “duration neglect” and “recency effect” in an end-user's perception of video quality in order to optimally manage video traffic during periods of congestion.

摘要翻译： 系统和方法提供了基于权重的调度系统，其结合最终用户应用程序感知，并且可以与包含异构应用程序的数据流的调度组一起使用。 可以基于应用程序类，特定应用程序，单个数据流或其某种组合来创建调度组内的各个数据队列。 应用信息和应用因子（AF）用于修改调度器权重以区分分配给调度组的数据流。 动态AF设置可以调整用户应用程序的相对重要性，以响应循环网络模式，一次性事件，应用特性，协议特性，设备特性，服务级别协议或其组合来最大化用户体验质量（QoE）。 调度权重可以是动态的，并且在最终用户对视频质量的感知中并入“持续时间忽视”和“近似效应”的概念，以便在拥塞期间最佳地管理视频流量。

公开(公告)号：US08724697B2

公开(公告)日：2014-05-13

申请号：US12239196

申请日：2008-09-26

申请人： Yen-Chi Lee ,  Yiliang Bao

发明人： Yen-Chi Lee ,  Yiliang Bao

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/42 ,  H04N19/44 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

摘要： An apparatus performs efficient coding techniques to more efficiently locate motion vector data within neighboring video data units. The apparatus comprises a motion vector (MV) location unit that includes a look-up table (LUT), where the MV location unit obtains video data defining a plurality of video data units and processes the plurality of video data units. The apparatus further includes a geometric resolution unit that determines, while processing a current one of the plurality of video data units, which of the plurality of video data units neighbor the current video data unit. The MV location unit then accesses, for each of the neighboring video data units, the LUT to determine a location of a motion vector within a section of the video data to which the neighboring video data unit is associated.

摘要翻译： 一种装置执行有效的编码技术以更有效地定位相邻视频数据单元内的运动矢量数据。 该装置包括运动矢量（MV）位置单元，其包括查找表（LUT），其中MV位置单元获取定义多个视频数据单元的视频数据，并处理多个视频数据单元。 该装置还包括几何分辨单元，其在处理多个视频数据单元中的当前一个视频数据单元时，确定多个视频数据单元中的哪一个与当前视频数据单元相邻。 MV位置单元然后对于每个相邻视频数据单元访问LUT以确定相邻视频数据单元所关联的视频数据的一部分内的运动矢量的位置。

公开(公告)号：US08660176B2

公开(公告)日：2014-02-25

申请号：US12239031

申请日：2008-09-26

申请人： Yen-Chi Lee ,  Yiliang Bao

发明人： Yen-Chi Lee ,  Yiliang Bao

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/42 ,  H04N19/112 ,  H04N19/137 ,  H04N19/16 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61

摘要： An apparatus performs efficient coding techniques to more efficiently resolve geometric relationships between video data units and thereby determine neighboring video data units for a current video data unit. The apparatus comprises a geometric resolution unit that obtains video data defining a plurality of video data units, and determines, for the current one of the plurality of video data units to be processed, a partition width and a video unit number of the current video data unit. The geometric resolution unit accesses, using the determined partition width and video unit number, a plurality of look-up tables (LUTs) to output one or more indices identifying one or more of the plurality of video data units that neighbor the current video data unit.

摘要翻译： 一种装置执行有效的编码技术以更有效地解决视频数据单元之间的几何关系，从而确定当前视频数据单元的相邻视频数据单元。 该装置包括几何分辨单元，其获取定义多个视频数据单元的视频数据，并且对于要处理的多个视频数据单元中的当前一个视频数据单元，确定当前视频数据的分区宽度和视频单元数 单元。 几何分辨率单元使用确定的分区宽度和视频单元号来访问多个查找表（LUT），以输出识别与当前视频数据单元相邻的多个视频数据单元中的一个或多个的一个或多个索引 。

公开(公告)号：US08233544B2

公开(公告)日：2012-07-31

申请号：US11776679

申请日：2007-07-12

申请人： Yiliang Bao ,  Narendranath Malayath ,  Sharath Manjunath ,  Yan Ye

发明人： Yiliang Bao ,  Narendranath Malayath ,  Sharath Manjunath ,  Yan Ye

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/34

摘要： The disclosure describes FGS video coding techniques that use cycle-aligned fragments (CAFs). The techniques may perform cycle-based coding of FGS video data block coefficients and syntax elements, and encapsulate cycles in fragments for transmission. The fragments may be cycle-aligned such that a start of a payload of each of the fragments substantially coincides with a start of one of the cycles. In this manner, cycles can be readily accessed via individual fragments. Some cycles may be controlled with a vector mode to scan to a predefined position within a block before moving to another block. In this manner, the number of cycles can be reduced, reducing the number of fragments and associated overhead. The CAFs may be entropy coded independently of one another so that each fragment may be readily accessed and decoded without waiting for decoding of other fragments. Independent entropy coding may permit parallel decoding and simultaneous processing of fragments.

摘要翻译： 本公开描述了使用循环对准片段（CAF）的FGS视频编码技术。 这些技术可以执行FGS视频数据块系数和语法元素的基于循环的编码，并且将循环封装成用于传输的片段。 片段可以是循环对齐的，使得每个片段的有效载荷的开始基本上与循环中的一个的开始重合。 以这种方式，可以容易地通过各个片段访问周期。 可以通过向量模式来控制一些周期，以便在移动到另一个块之前扫描到块内的预定位置。 以这种方式，可以减少周期数，减少片段的数量和相关的开销。 CAF可以彼此独立地进行熵编码，使得每个片段可以容易地被访问和解码，而不等待其他片段的解码。 独立熵编码可以允许并行解码和片段的同时处理。

公开(公告)号：US08199812B2

公开(公告)日：2012-06-12

申请号：US11970413

申请日：2008-01-07

申请人： Yan Ye ,  Yiliang Bao

发明人： Yan Ye ,  Yiliang Bao

IPC分类号： H04N11/02

CPC分类号： H04N19/59 ,  H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33

摘要： This disclosure describes techniques for coding information in a scalable video coding (SVC) scheme that supports spatial scalability. In one example, a method for coding video data with spatial scalability comprises upsampling base layer residual video data to a spatial resolution of enhancement layer residual video data, and coding the enhancement layer residual video data based on the upsampled base layer residual video data. In accordance with this disclosure, upsampling base layer residual video data includes interpolating values for one or more pixel locations of the upsampled base layer residual video data that correspond to locations between different base layer residual video data blocks.

摘要翻译： 本公开描述了用于在支持空间可扩展性的可伸缩视频编码（SVC）方案中对信息进行编码的技术。 在一个示例中，一种用于以空间可缩放性对视频数据进行编码的方法包括将基本层残余视频数据上采样到增强层残余视频数据的空间分辨率，并且基于上采样的基本层残留视频数据对增强层残余视频数据进行编码。 根据本公开，上采样基层残留视频数据包括对应于不同基层残留视频数据块之间的位置的上采样基层残留视频数据的一个或多个像素位置的内插值。

公开(公告)号：US07778472B2

公开(公告)日：2010-08-17

申请号：US11469606

申请日：2006-09-01

申请人： Yan Ye ,  Yiliang Bao

发明人： Yan Ye ,  Yiliang Bao

IPC分类号： G06K9/36

CPC分类号： H04N19/34 ,  H04N19/13 ,  H04N19/14 ,  H04N19/46 ,  H04N19/61

摘要： A method for decoding significance coefficients in an encoded video sequence is described. An encoded video bitstream is received. Codebook table information is retrieved from the bitstream. Significance symbols are decoded using the retrieved codebook table information. Significance coefficients are decoded using the significance symbols. A plurality of transform coefficients is dequantized. An inverse transform is applied to a residual signal. A video sequence is constructed. A method for coding significance coefficients in a video sequence is also described.

摘要翻译： 描述了一种用于对编码视频序列中的有效系数进行解码的方法。 接收编码视频位流。 从比特流中检索码本表信息。 使用检索到的码本表信息对意义符号进行解码。 使用有效符号对重要性系数进行解码。 多个变换系数被去量化。 对残差信号应用逆变换。 构建视频序列。 还描述了用于对视频序列中的有效系数进行编码的方法。

公开(公告)号：US20100046627A1

公开(公告)日：2010-02-25

申请号：US12197929

申请日：2008-08-25

申请人： Shu Xiao ,  Yiliang Bao ,  Sitaraman Ganapathy Subramanian

发明人： Shu Xiao ,  Yiliang Bao ,  Sitaraman Ganapathy Subramanian

IPC分类号： H04N7/26

CPC分类号： H04N21/4436 ,  H03M7/425 ,  H04N19/156 ,  H04N19/436 ,  H04N19/44 ,  H04N19/61

摘要： Decoding systems and methods are disclosed. In a particular embodiment, a video decoder system includes a first decoding path and a second decoding path configured to decode at a slower average rate than the first decoding path. The video decoder system includes a dynamic switch configured to provide a first portion of the encoded video signal to the first decoding path or to the second decoding path. The dynamic switch is further configured to provide a subsequent portion of the encoded video signal to the first decoding path or to the second decoding path in response to a value of a decoding metric associated with decode processing of the first portion.

摘要翻译： 公开了解码系统和方法。 在特定实施例中，视频解码器系统包括第一解码路径和第二解码路径，其被配置为以比第一解码路径更慢的平均速率进行解码。 视频解码器系统包括被配置为将编码视频信号的第一部分提供给第一解码路径或第二解码路径的动态开关。 动态切换还被配置为响应于与第一部分的解码处理相关联的解码度量的值，将编码视频信号的后续部分提供给第一解码路径或第二解码路径。