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61. 发明授权

US07369610B2 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：US07369610B2
公开(公告)日：2008-05-06
申请号：US10725762
申请日：2003-12-01
申请人： Jizheng Xu , Feng Wu , Shipeng Li
发明人： Jizheng Xu , Feng Wu , Shipeng Li
IPC分类号： 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。

62. 发明授权

US07280700B2 Optimization techniques for data compression 有权
标题翻译：数据压缩优化技术
公开(公告)号：US07280700B2
公开(公告)日：2007-10-09
申请号：US10462085
申请日：2003-06-13
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： G06K9/46 , H04B1/66
CPC分类号： H04N19/567 , H04N19/103 , H04N19/126 , H04N19/147 , H04N19/149 , H04N19/162 , H04N19/186 , H04N19/19 , H04N19/60 , H04N19/61
摘要： Methods and apparatuses are provided relating to the encoding of data, such as, e.g., images, video, etc. For example, certain methods include processing at least a portion of data using a plurality of different quantization functions to produce a plurality of corresponding quantized portions of data, and selectively outputting one of the quantized portions of data based on at least one threshold value. The method may also include dividing initial data into a plurality of portions and classifying the portion of data based on at least one classification characteristic. Here, for example, there may be a threshold value that is associated with the classification characteristic. Additional syntax may be adopted to enable considerably higher compression efficiency by allowing several alternative motion prediction cases. A high efficiency time stamp independent Direct Mode is also provided which considers spatial motion vector prediction as well with stationary temporal predictors.
摘要翻译：提供了与诸如图像，视频等的数据的编码相关的方法和装置。例如，某些方法包括使用多个不同的量化函数来处理数据的至少一部分以产生多个对应的量化数据的部分，并且基于至少一个阈值选择性地输出数据的量化部分之一。该方法还可以包括将初始数据划分成多个部分，并且基于至少一个分类特征来对数据的部分进行分类。这里，例如，可以存在与分类特性相关联的阈值。可以采用额外的语法来通过允许多个替代的运动预测情况来实现相当高的压缩效率。还提供了高效率时间戳独立直接模式，其考虑空间运动矢量预测以及静态时间预测器。

63. 发明授权

US06956972B2 System and method for robust video coding using progressive fine-granularity scalable (PFGS) coding 失效
公开(公告)号：US06956972B2
公开(公告)日：2005-10-18
申请号：US10612441
申请日：2003-07-02
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang
IPC分类号： G06T9/00 , H04N19/895 , G06K9/36
CPC分类号： H04N19/36 , H04N19/105 , H04N19/157 , H04N19/169 , H04N19/34 , H04N19/503 , H04N19/51 , H04N19/895
摘要： A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into 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 at least one lower quality layer in a reference frame, whereby the lower quality layer is not necessarily the base layer.

64. 发明申请

US20050190834A1 System and method for robust video coding using progressive fine-granularity scalable (PFGS) coding 有权
标题翻译：用于使用逐行细粒度可扩展（PFGS）编码的鲁棒视频编码的系统和方法
公开(公告)号：US20050190834A1
公开(公告)日：2005-09-01
申请号：US11120244
申请日：2005-05-02
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang
IPC分类号： G06T9/00 , H04N19/895 , H04N7/12
CPC分类号： H04N19/36 , H04N19/105 , H04N19/157 , H04N19/169 , H04N19/34 , H04N19/503 , H04N19/51 , H04N19/895
摘要： A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into 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 at least one lower quality layer in a reference frame, whereby the lower quality layer is not necessarily the base layer.
摘要翻译：视频编码方案采用逐行细粒度分层编码将视频数据帧编码为多层，包括具有较低质量视频的基本层和越来越高质量视频的多个增强层。当前帧中的一些增强层从参考帧中的至少一个较低质量层预测，由此较低质量层不一定是基本层。

65. 发明申请

US20050129123A1 Enhancement layer transcoding of fine-granular scalable video bitstreams 有权
标题翻译：细粒度可缩放视频比特流的增强层转码
公开(公告)号：US20050129123A1
公开(公告)日：2005-06-16
申请号：US10736955
申请日：2003-12-15
申请人： Jizheng Xu , Feng Wu , Shipeng Li
发明人： Jizheng Xu , Feng Wu , Shipeng Li
IPC分类号： H04N7/12 , H04N7/26
CPC分类号： H04N19/34 , H04N19/149 , H04N19/164 , H04N19/187 , H04N19/40
摘要： Systems and methods for enhancement layer transcoding of fine-granular scalable video bitstreams are described. In one aspect, an enhancement layer bitstream is decoded from encoded video data. The encoded video data includes a base layer and one or more enhancement layers. The encoded video data is encoded according to a high HQRB (high quality reference bit-rate). Data throughput characteristics of a network coupled to a client computing device are determined. A new HQRB is calculated based on the data throughput characteristics. The decoded enhancement layer bitstream is then encoded based on the new HQRB to generate a transcoded enhancement layer for streaming to the client computing device. The base layer is not decoded for streaming to the client computing device.
摘要翻译：描述了细粒度可分级视频比特流的增强层转码的系统和方法。在一个方面，从编码视频数据解码增强层比特流。编码视频数据包括基本层和一个或多个增强层。编码的视频数据根据高HQRB（高质量参考比特率）进行编码。确定耦合到客户端计算设备的网络的数据吞吐量特性。基于数据吞吐量特性计算新的HQRB。然后，基于新的HQRB对解码的增强层比特流进行编码，以生成用于流式传输到客户端计算设备的转码增强层。基本层未被解码用于流传送到客户端计算设备。

66. 发明申请

US20050069036A1 Systems and methods with error resilience in enhancement layer bitstream of scalable video coding 有权
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：US20050069036A1
公开(公告)日：2005-03-31
申请号：US10977773
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： G06T9/00 , H04N19/89 , H04N7/12
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 i 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i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。

67. 发明申请

US20050063463A1 Systems and methods with error resilience in enchancement layer bitstream of scalable video coding 失效
标题翻译：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：US20050063463A1
公开(公告)日：2005-03-24
申请号：US10977417
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： G06T9/00 , H04N19/89 , H04N7/12
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。

68. 发明授权

US06700933B1 System and method with advance predicted bit-plane coding for progressive fine-granularity scalable (PFGS) video coding 有权
标题翻译：具有用于逐行细粒度可缩放（PFGS）视频编码的预测位平面编码的系统和方法
公开(公告)号：US06700933B1
公开(公告)日：2004-03-02
申请号：US09505254
申请日：2000-02-15
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang
IPC分类号： H04N712
CPC分类号： H04N19/625 , H04N19/105 , H04N19/159 , H04N19/18 , H04N19/187 , H04N19/34 , H04N19/503 , H04N19/60 , H04N19/61 , H04N19/91
摘要： A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into 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 at least one same or lower quality layer in a reference frame, whereby the lower quality layer is not necessarily the base layer. Use of multiple reference layers of different quality results in occasional fluctuations in the encoded image data. The video encoding scheme efficiently eliminates such fluctuations by predicting higher quality data from the lower quality data encoded in the base layer and a low quality enhancement layer.
摘要翻译：视频编码方案采用逐行细粒度分层编码将视频数据帧编码为多层，包括具有较低质量视频的基本层和越来越高质量视频的多个增强层。当前帧中的一些增强层从参考帧中的至少一个相同质量层或较低质量层预测，由此较低质量层不一定是基本层。使用不同质量的多个参考层导致编码图像数据的偶尔波动。视频编码方案通过从基层编码的较低质量数据和低质量增强层预测更高质量的数据来有效地消除这种波动。

69. 发明授权

US06614936B1 System and method for robust video coding using progressive fine-granularity scalable (PFGS) coding 有权
标题翻译：用于使用逐行细粒度可扩展（PFGS）编码的鲁棒视频编码的系统和方法
公开(公告)号：US06614936B1
公开(公告)日：2003-09-02
申请号：US09454489
申请日：1999-12-03
申请人： Feng Wu , Shipeng Li , Ya-Qin Zhang
发明人： Feng Wu , Shipeng Li , Ya-Qin Zhang
IPC分类号： G06K936
CPC分类号： H04N19/36 , H04N19/105 , H04N19/157 , H04N19/169 , H04N19/34 , H04N19/503 , H04N19/51 , H04N19/895
摘要： A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into 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 at least one lower quality layer in a reference frame, whereby the lower quality layer is not necessarily the base layer.
摘要翻译：视频编码方案采用逐行细粒度分层编码将视频数据帧编码为多层，包括具有较低质量视频的基本层和越来越高质量视频的多个增强层。当前帧中的一些增强层从参考帧中的至少一个较低质量层预测，由此较低质量层不一定是基本层。

70. 发明授权

US08396312B2 Vision-based compression 有权
标题翻译：基于视觉的压缩
公开(公告)号：US08396312B2
公开(公告)日：2013-03-12
申请号：US13177434
申请日：2011-07-06
申请人： Xiaoyan Sun , Feng Wu , Shipeng Li , Dong Liu
发明人： Xiaoyan Sun , Feng Wu , Shipeng Li , Dong Liu
IPC分类号： G06K9/36
CPC分类号： H04N19/12 , G06T7/12 , H04N19/17 , H04N19/61
摘要： Systems and methods provide vision-based image compression. In one implementation, inpainting is the vision-based technique selected to augment a conventional signal-processing-based technique. For some regions of a source image, an exemplary system efficiently extracts and organizes structural edge information instead of compressing the regions. In one implementation, the system applies binary curve fitting to capture the edge information. A structure-aware inpainter in the decoder can then restore the regions via the edge information, which occupies very little data space or minimal bandwidth in a bitstream that is transmitted from encoder to decoder. Key visual components of the image can still be conventionally compressed. Extracting edge information for some regions instead of compressing them considerably increases overall image compression.
摘要翻译：系统和方法提供基于视觉的图像压缩。在一个实现中，修复是基于视觉的技术，其被选择用于增加常规的基于信号处理的技术。对于源图像的一些区域，示例性系统有效地提取并组织结构边缘信息，而不是压缩该区域。在一个实现中，系统应用二进制曲线拟合来捕获边缘信息。然后，解码器中的结构感知输入器可以经由边缘信息来恢复区域，该边缘信息在从编码器传送到解码器的比特流中占据非常小的数据空间或最小带宽。图像的主要视觉部件仍然可以被传统地压缩。为某些区域提取边缘信息而不是压缩边缘信息显着增加了整体图像压缩。

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