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1. 发明授权

US07580461B2 Barbell lifting for wavelet coding 有权
标题翻译：杠铃提升用于小波编码
公开(公告)号：US07580461B2
公开(公告)日：2009-08-25
申请号：US10911836
申请日：2004-08-04
申请人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
发明人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/36 , G06K9/46
CPC分类号： H04N19/635 , H04N19/119 , H04N19/139 , H04N19/61 , H04N19/63
摘要： A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the current frame to form an array of high-pass wavelet coefficients. A low-pass wavelet coefficient is generated based on a function of the high-pass wavelet coefficients. A system for coding video data includes a temporal wavelet decomposition module decomposing a pixel into a high-pass coefficient by performing a discrete wavelet transform on the pixel, a function of pixels in a previous frame, and/or a function of pixels in a subsequent frame. The system includes a motion estimation module generating motion vectors associated with the pixels in the previous frame and in the subsequent frame.
摘要翻译：用于编码运动补偿视频数据的方法包括：基于时间上相邻帧中的像素的函数为当前帧生成高通小波系数。对当前帧中的像素阵列中的多个像素重复操作以形成高通小波系数的阵列。基于高通小波系数的函数产生低通小波系数。用于编码视频数据的系统包括时间小波分解模块，其通过对像素执行离散小波变换，先前帧中的像素的功能和/或随后的像素的函数将像素分解为高通系数帧。该系统包括运动估计模块，其生成与前一帧和随后帧中的像素相关联的运动矢量。

2. 发明申请

US20050190978A1 Barbell lifting for wavelet coding 有权
标题翻译：杠铃提升用于小波编码
公开(公告)号：US20050190978A1
公开(公告)日：2005-09-01
申请号：US10911836
申请日：2004-08-04
申请人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
发明人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
IPC分类号： G06K9/36 , H04N7/26
CPC分类号： H04N19/635 , H04N19/119 , H04N19/139 , H04N19/61 , H04N19/63
摘要： A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the current frame to form an array of high-pass wavelet coefficients. A low-pass wavelet coefficient is generated based on a function of the high-pass wavelet coefficients. A system for coding video data includes a temporal wavelet decomposition module decomposing a pixel into a high-pass coefficient by performing a discrete wavelet transform on the pixel, a function of pixels in a previous frame, and/or a function of pixels in a subsequent frame. The system includes a motion estimation module generating motion vectors associated with the pixels in the previous frame and in the subsequent frame.
摘要翻译：用于编码运动补偿视频数据的方法包括：基于时间上相邻帧中的像素的函数为当前帧生成高通小波系数。对当前帧中的像素阵列中的多个像素重复操作以形成高通小波系数的阵列。基于高通小波系数的函数产生低通小波系数。用于编码视频数据的系统包括时间小波分解模块，其通过对像素执行离散小波变换，先前帧中的像素的功能和/或随后的像素的函数将像素分解为高通系数帧。该系统包括运动估计模块，其生成与前一帧和随后帧中的像素相关联的运动矢量。

3. 发明授权

US08374238B2 Spatial scalability in 3D sub-band decoding of SDMCTF-encoded video 有权
标题翻译： SDMCTF编码视频的3D子带解码空间可扩展性
公开(公告)号：US08374238B2
公开(公告)日：2013-02-12
申请号：US11127001
申请日：2005-05-10
申请人： Ruiqin Xiong , Jizheng Xu , Feng Wu , Shipeng Li
发明人： Ruiqin Xiong , Jizheng Xu , Feng Wu , Shipeng Li
IPC分类号： H04N7/12 , H04N1/66
CPC分类号： H04N19/615 , H04N19/13 , H04N19/154 , H04N19/172 , H04N19/59 , H04N19/61 , H04N19/63 , H04N19/635
摘要： Techniques and tools are described for scalable video coding and decoding. For example, a 3D sub-band decoder receives video encoded using spatial-domain motion-compensated temporal filtering at a first spatial resolution. The decoder decodes at least part of the video for output at a second spatial resolution lower than the first spatial resolution. The decoder uses any of several techniques to improve performance by devoting extra computational resources to the decoding, devoting extra buffer resources to storing reference picture information, and/or considering spatial high-pass sub-band information.
摘要翻译：描述了可扩展视频编码和解码的技术和工具。例如，3D子带解码器以第一空间分辨率接收使用空间域运动补偿时间滤波编码的视频。解码器解码至少部分视频以便以低于第一空间分辨率的第二空间分辨率输出。解码器使用几种技术中的任何一种来通过将额外的计算资源用于解码来提高性能，将额外的缓冲器资源用于存储参考图像信息和/或考虑空间高通子带信息。

4. 发明授权

US07627037B2 Barbell lifting for multi-layer wavelet coding 有权
标题翻译：杠铃提升用于多层小波编码
公开(公告)号：US07627037B2
公开(公告)日：2009-12-01
申请号：US10912033
申请日：2004-08-04
申请人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
发明人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/615 , H04N19/103 , H04N19/13 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/52 , H04N19/61 , H04N19/63
摘要： A method for coding video data includes scalably generating layers of wavelet coefficients based on a frame of video data, scalably generating motion vector data associated with the plurality of layers, and combining the motion vector data and the plurality of layers of wavelet coefficients into a coded video frame representing the frame of video data. The method may further include transmitting the coded video frame. A system for coding video data includes a temporal decomposition module scalably applying a barbell function to a frame of video data, and a motion vector module scalably coding motion vector data at multiple levels of refinement.
摘要翻译：一种用于编码视频数据的方法包括基于视频数据的帧可缩放地生成小波系数层，可扩展地生成与多个层相关联的运动矢量数据，并将运动矢量数据和多个小波系数层组合成编码表示视频数据帧的视频帧。该方法还可以包括发送编码的视频帧。用于编码视频数据的系统包括可缩放地对视频数据帧施加杠铃功能的时间分解模块，以及以多级细化可变地编码运动矢量数据的运动矢量模块。

5. 发明授权

US08243812B2 Barbell lifting for wavelet coding 有权
标题翻译：杠铃提升用于小波编码
公开(公告)号：US08243812B2
公开(公告)日：2012-08-14
申请号：US12503582
申请日：2009-07-15
申请人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
发明人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/635 , H04N19/119 , H04N19/139 , H04N19/61 , H04N19/63
摘要： A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the current frame to form an array of high-pass wavelet coefficients. A low-pass wavelet coefficient is generated based on a function of the high-pass wavelet coefficients. A system for coding video data includes a temporal wavelet decomposition module decomposing a pixel into a high-pass coefficient by performing a discrete wavelet transform on the pixel, a function of pixels in a previous frame, and/or a function of pixels in a subsequent frame. The system includes a motion estimation module generating motion vectors associated with the pixels in the previous frame and in the subsequent frame.
摘要翻译：用于编码运动补偿视频数据的方法包括：基于时间上相邻帧中的像素的函数为当前帧生成高通小波系数。对当前帧中的像素阵列中的多个像素重复操作以形成高通小波系数的阵列。基于高通小波系数的函数产生低通小波系数。用于编码视频数据的系统包括时间小波分解模块，其通过对像素执行离散小波变换，先前帧中的像素的功能和/或随后的像素的函数将像素分解为高通系数帧。该系统包括运动估计模块，其生成与前一帧和随后帧中的像素相关联的运动矢量。

6. 发明申请

US20100020882A1 Barbell Lifting for Wavelet Coding 有权
标题翻译：杠铃提升小波编码
公开(公告)号：US20100020882A1
公开(公告)日：2010-01-28
申请号：US12503582
申请日：2009-07-15
申请人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
发明人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
IPC分类号： H04N7/30
CPC分类号： H04N19/635 , H04N19/119 , H04N19/139 , H04N19/61 , H04N19/63
摘要： A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the current frame to form an array of high-pass wavelet coefficients. A low-pass wavelet coefficient is generated based on a function of the high-pass wavelet coefficients. A system for coding video data includes a temporal wavelet decomposition module decomposing a pixel into a high-pass coefficient by performing a discrete wavelet transform on the pixel, a function of pixels in a previous frame, and/or a function of pixels in a subsequent frame. The system includes a motion estimation module generating motion vectors associated with the pixels in the previous frame and in the subsequent frame.
摘要翻译：用于编码运动补偿视频数据的方法包括：基于时间上相邻帧中的像素的函数为当前帧生成高通小波系数。对当前帧中的像素阵列中的多个像素重复操作以形成高通小波系数的阵列。基于高通小波系数的函数产生低通小波系数。用于编码视频数据的系统包括时间小波分解模块，其通过对像素执行离散小波变换，先前帧中的像素的功能和/或随后的像素的函数将像素分解为高通系数帧。该系统包括运动估计模块，其生成与前一帧和随后帧中的像素相关联的运动矢量。

7. 发明申请

US20060114993A1 Spatial scalability in 3D sub-band decoding of SDMCTF-encoded video 有权
公开(公告)号：US20060114993A1
公开(公告)日：2006-06-01
申请号：US11127001
申请日：2005-05-10
申请人： Ruiqin Xiong , Jizheng Xu , Feng Wu , Shipeng Li
发明人： Ruiqin Xiong , Jizheng Xu , Feng Wu , Shipeng Li
IPC分类号： H04N11/04 , H04N7/12 , H04B1/66 , H04N11/02
CPC分类号： H04N19/615 , H04N19/13 , H04N19/154 , H04N19/172 , H04N19/59 , H04N19/61 , H04N19/63 , H04N19/635
摘要： Techniques and tools are described for scalable video coding and decoding. For example, a 3D sub-band decoder receives video encoded using spatial-domain motion-compensated temporal filtering at a first spatial resolution. The decoder decodes at least part of the video for output at a second spatial resolution lower than the first spatial resolution. The decoder uses any of several techniques to improve performance by devoting extra computational resources to the decoding, devoting extra buffer resources to storing reference picture information, and/or considering spatial high-pass sub-band information.

8. 发明申请

US20050190979A1 Barbell lifting for multi-layer wavelet coding 有权
标题翻译：杠铃提升用于多层小波编码
公开(公告)号：US20050190979A1
公开(公告)日：2005-09-01
申请号：US10912033
申请日：2004-08-04
申请人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
发明人： Shipeng Li , Ruiqin Xiong , Lin Luo , Jizheng Xu , Feng Wu
IPC分类号： H04N7/26 , G06K9/36
CPC分类号： H04N19/615 , H04N19/103 , H04N19/13 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/52 , H04N19/61 , H04N19/63
摘要： A method for coding video data includes scalably generating layers of wavelet coefficients based on a frame of video data, scalably generating motion vector data associated with the plurality of layers, and combining the motion vector data and the plurality of layers of wavelet coefficients into a coded video frame representing the frame of video data. The method may further include transmitting the coded video frame. A system for coding video data includes a temporal decomposition module scalably applying a barbell function to a frame of video data, and a motion vector module scalably coding motion vector data at multiple levels of refinement.
摘要翻译：一种用于编码视频数据的方法包括基于视频数据的帧可缩放地生成小波系数层，可扩展地生成与多个层相关联的运动矢量数据，并将运动矢量数据和多个小波系数层组合成编码表示视频数据帧的视频帧。该方法还可以包括发送编码的视频帧。用于编码视频数据的系统包括可缩放地对视频数据帧施加杠铃功能的时间分解模块，以及以多级细化可变地编码运动矢量数据的运动矢量模块。

9. 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。

10. 发明授权

US07860161B2 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：US07860161B2
公开(公告)日：2010-12-28
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 , H04N7/28 , H04N7/01 , H04N7/50
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。

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