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1. 发明申请

WO2012012249A1 VIDEO COMPRESSION USING MULTIPLE VARIABLE LENGTH CODING METHODS FOR MULTIPLE TYPES OF TRANSFORM COEFFICIENT BLOCKS 审中-公开
标题翻译：使用多种可变长度编码方法对多种类型的变换系数块进行视频压缩
公开(公告)号：WO2012012249A1
公开(公告)日：2012-01-26
申请号：PCT/US2011/043906
申请日：2011-07-13
申请人： CISCO TECHNOLOGY, INC. , CHEN, Wen-hsiung , XU, Yian
发明人： CHEN, Wen-hsiung , XU, Yian
IPC分类号： H04N7/26 , H03M7/42
CPC分类号： H04N19/91 , H03M7/40 , H04N19/124 , H04N19/13 , H04N19/134 , H04N19/176 , H04N19/46 , H04N19/60
摘要： Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.
摘要翻译：将图像数据块的一系列量化变换系数分类为用于熵编码的预定义多个类之一，以及对该块进行熵编码。一个类至少由块的大小定义，通常但不一定是一个或多个其他因素。分类序列由一组预定义熵编码方法中的一种编码，例如用于预定义类的可变长度编码方法。

2. 发明申请

WO2007056657A2 EXTENDED AMPLITUDE CODING FOR CLUSTERED TRANSFORM COEFFICIENTS 审中-公开
标题翻译：用于集群变换系数的扩展增益编码
公开(公告)号：WO2007056657A2
公开(公告)日：2007-05-18
申请号：PCT/US2006/060472
申请日：2006-11-02
申请人： CISCO TECHNOLOGY, INC. , CHEN, Wen-hsiung , TOEBES, John, A.
发明人： CHEN, Wen-hsiung , TOEBES, John, A.
IPC分类号： G06K9/36
CPC分类号： H04N19/93 , H04N19/60 , H04N19/61 , H04N19/91
摘要： Coding quantized transform coefficients as occur in image compression combines a position coding method to code the position of clusters of consecutive non-zero-value coefficients with an amplitude coding method to code the amplitudes of a concatenation of a plurality of the clusters. The amplitude coding method exploits that runs of amplitude 1 coefficients are more likely in the clusters than runs of other coefficient amplitudes.
摘要翻译：在图像压缩中发生的编码量化变换系数组合了一种位置编码方法，用一种幅度编码方法对连续的非零值系数的簇的位置进行编码，以对多个簇的级联进行编码。幅度编码方法利用幅度1的系数在簇中比其他系数幅度的运行更有可能。

3. 发明申请

WO2009046042A2 VARIABLE LENGTH CODING OF COEFFICIENT CLUSTERS FOR IMAGE AND VIDEO COMPRESSION 审中-公开
标题翻译：用于图像和视频压缩的系数组合的可变长度编码
公开(公告)号：WO2009046042A2
公开(公告)日：2009-04-09
申请号：PCT/US2008/078359
申请日：2008-10-01
申请人： CISCO TECHNOLOGY, INC. , GEORGIA TECH RESEARCH CORPORATION , LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
发明人： LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/649 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/62 , H04N19/91
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding cluster of consecutive non-zero-valued coefficients, the encoding of a cluster including jointly encoding joint events that each are defined by at least two parameters: the number of zero-valued coefficients preceding the cluster, and the number of non-zero-valued coefficients in the cluster. The encoding of the cluster also includes encoding a parameter indicative of the number of amplitude-1 trailing non-zero-valued coefficients in the cluster, in one version with the parameter indicative of the number of trailing amplitude-1 coefficients part of the joint events such that the coding is according to a 3-dimensional joint variable length coding table. The method further includes encoding the amplitudes of the non-zero-valued coefficients that are not encoded by the joint encoding, e.g., encoding the amplitudes of the other than the trailing amplitude-1 coefficients.
摘要翻译：一种编码方法，装置和介质，其上编码有软件以实现编码方法。编码方法包括对连续的非零值系数的簇进行编码，包括共同编码的关联事件的簇的编码，每个共同事件由至少两个参数定义：群集之前的零值系数的数量和集群中的非零值系数。簇的编码还包括在一个版本中编码指示簇中的幅度-1尾随非零值系数的参数，其中参数指示联合事件的一部分的后向幅度-1系数的数量使得编码根据3维关节可变长度编码表。该方法还包括编码非联合编码的非零值系数的幅度，例如编码除了后沿幅度-1系数之外的幅度。

4. 发明申请

WO2009046040A3 JOINT AMPLITUDE AND POSITION CODING OF COEFFICIENTS FOR VIDEO COMPRESSION 审中-公开
公开(公告)号：WO2009046040A3
公开(公告)日：2009-04-09
申请号：PCT/US2008/078356
申请日：2008-10-01
申请人： CISCO TECHNOLOGY, INC. , GEORGIA TECH RESEARCH CORPORATION , LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
发明人： LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
IPC分类号： H04N7/26 , H04N7/50
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes jointly encoding joint events that each are defined by a cluster of consecutive non-zero-valued coefficients, each joint event defined by three parameters: the number of zero-valued coefficients preceding the cluster, the number of non-zero-valued coefficients in the cluster, and an indication of which trailing coefficients up to a maximum number of M trailing coefficients have amplitude greater than 1, with the coding using a 3-dimensional joint VLC table. The method further includes encoding the amplitude of the non-zero-valued trailing coefficients that have amplitude greater than 1 encoding the amplitude of any remaining non-zero-valued coefficients in the clusters that have more than M non-zero-valued coefficients.

5. 发明申请

WO2004105398A1 COMBINED RUNLENGTH CODING AND VARIABLE LENGTH CODING FOR VIDEO COMPRESSION 审中-公开
标题翻译：组合运行长度编码和可变长度编码视频压缩
公开(公告)号：WO2004105398A1
公开(公告)日：2004-12-02
申请号：PCT/US2004/006485
申请日：2004-03-03
申请人： CISCO TECHNOLOGY, INC. , CHEN, Wen-hsiung , WU, Fang , PELTON, Gregory, D.
发明人： CHEN, Wen-hsiung , WU, Fang , PELTON, Gregory, D.
IPC分类号： H04N7/30
CPC分类号： H03M7/40 , H04N19/13 , H04N19/60 , H04N19/61 , H04N19/91 , H04N19/93
摘要： A method and an apparatus to encode a series of quantized coefficients of a transform of a block of image data. The transform is such that 0 is the most likely coefficient amplitude and 1 is the next most likely coefficient amplitude. The method includes forming modes for each encountered non-zero amplitude and forming events for the modes in the mode-modified series formed by setting to zero all non-zero amplitudes other than the amplitude defining the mode. An event for modes for amplitudes greater than 1 is a run of none or more zero-valued coefficients followed a non-zero amplitude in the mode-modified series. In one embodiment, a first mode is defined for amplitude 1 wherein an event is a run of none or more zero-valued coefficients followed the amplitude 1 coefficient in the mode-modified series. In another embodiment, a first mode is defined for amplitude 1 wherein an event is a run in the mode-modified series of none or more zero-valued coefficients followed by a run of one of a predefined set of sequences, each sequence in the set being a sequence of l's and 0's starting with a coefficient of amplitude 1. In another embodiment, a first mode is defined for amplitude 1 wherein an event is a sequence of 0's and 1's of the length of the series of quantized coefficients. The method includes forming a codeword for each encountered mode and forming codewords for the formed events in the mode. Relatively short codewords are formed to represent events that are relatively more likely to occur.
摘要翻译：一种用于编码图像数据块的变换的一系列量化系数的方法和装置。变换使得0是最可能的系数幅度，1是下一个最可能的系数幅度。该方法包括为每个遇到的非零幅度形成模式，并且通过将除了定义该模式的幅度之外的所有非零幅度设置为零而形成的模式修正序列中的模式的形成事件。对于幅度大于1的模式的事件是在模式修改的系列中没有或者更多的零值系数跟随非零幅度的运行。在一个实施例中，为振幅1定义第一模式，其中事件是模式修正序列中的幅度1系数之后的零值或更多个零值系数的运行。在另一个实施例中，对于振幅1定义第一模式，其中事件是模式修改的一系列中没有或多个零值系数的运行，随后运行预定义的一组序列，集合中的每个序列是以幅度1的系数开始的l's和0的序列。在另一个实施例中，对于振幅1定义第一模式，其中事件是一系列量化系数的长度的0和1的序列。该方法包括为每个遇到的模式形成码字，并在该模式中形成所形成的事件的码字。形成相对短的码字来表示相对更可能发生的事件。

6. 发明授权

EP2201781B1 VARIABLE LENGTH CODING OF COEFFICIENT CLUSTERS FOR IMAGE AND VIDEO COMPRESSION 有权
标题翻译：系数组编码可变长度图像和视频压缩
公开(公告)号：EP2201781B1
公开(公告)日：2011-08-03
申请号：EP08836667.9
申请日：2008-10-01
申请人： Cisco Technology, Inc. , Georgia Tech Research Corporation
发明人： LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/649 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/62 , H04N19/91
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding cluster of consecutive non-zero-valued coefficients, the encoding of a cluster including jointly encoding joint events that each are defined by at least two parameters: the number of zero-valued coefficients preceding the cluster, and the number of non-zero-valued coefficients in the cluster. The encoding of the cluster also includes encoding a parameter indicative of the number of amplitude-1 trailing non-zero-valued coefficients in the cluster, in one version with the parameter indicative of the number of trailing amplitude-1 coefficients part of the joint events such that the coding is according to a 3-dimensional joint variable length coding table. The method further includes encoding the amplitudes of the non-zero-valued coefficients that are not encoded by the joint encoding, e.g., encoding the amplitudes of the other than the trailing amplitude-1 coefficients.

7. 发明公开

EP2596634A1 VIDEO COMPRESSION USING MULTIPLE VARIABLE LENGTH CODING METHODS FOR MULTIPLE TYPES OF TRANSFORM COEFFICIENT BLOCKS 审中-公开
标题翻译：随着对变换系数块中的若干种不同长度的多个编纂视频压缩
公开(公告)号：EP2596634A1
公开(公告)日：2013-05-29
申请号：EP11733776.6
申请日：2011-07-13
申请人： Cisco Technology, Inc.
发明人： CHEN, Wen-hsiung , XU, Yian
IPC分类号： H04N7/26 , H03M7/42
CPC分类号： H04N19/91 , H03M7/40 , H04N19/124 , H04N19/13 , H04N19/134 , H04N19/176 , H04N19/46 , H04N19/60
摘要： Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.

8. 发明授权

EP1946246B1 EXTENDED AMPLITUDE CODING FOR CLUSTERED TRANSFORM COEFFICIENTS 失效转让
公开(公告)号：EP1946246B1
公开(公告)日：2019-02-20
申请号：EP06839677.9
申请日：2006-11-02
申请人： Cisco Technology, Inc.
发明人： CHEN, Wen-hsiung , TOEBES, John, A.
IPC分类号： H04N19/60 , H04N19/91 , H04N19/93

9. 发明公开

EP2201779A2 JOINT AMPLITUDE AND POSITION CODING OF COEFFICIENTS FOR VIDEO COMPRESSION 有权
标题翻译：联合幅度和视频压缩系数的定位编码
公开(公告)号：EP2201779A2
公开(公告)日：2010-06-30
申请号：EP08836277.7
申请日：2008-10-01
申请人： Cisco Technology, Inc. , Georgia Tech Research Corporation
发明人： LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/18 , H04N19/13 , H04N19/60
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes jointly encoding joint events that each are defined by a cluster of consecutive non-zero-valued coefficients, each joint event defined by three parameters: the number of zero-valued coefficients preceding the cluster, the number of non-zero-valued coefficients in the cluster, and an indication of which trailing coefficients up to a maximum number of M trailing coefficients have amplitude greater than 1, with the coding using a 3-dimensional joint VLC table. The method further includes encoding the amplitude of the non-zero-valued trailing coefficients that have amplitude greater than 1 encoding the amplitude of any remaining non-zero-valued coefficients in the clusters that have more than M non-zero-valued coefficients.

10. 发明公开

EP2201781A2 VARIABLE LENGTH CODING OF COEFFICIENT CLUSTERS FOR IMAGE AND VIDEO COMPRESSION 有权
标题翻译：系数组编码可变长度图像和视频压缩
公开(公告)号：EP2201781A2
公开(公告)日：2010-06-30
申请号：EP08836667.9
申请日：2008-10-01
申请人： Cisco Technology, Inc. , Georgia Tech Research Corporation
发明人： LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/649 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/62 , H04N19/91
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding cluster of consecutive non-zero-valued coefficients, the encoding of a cluster including jointly encoding joint events that each are defined by at least two parameters: the number of zero-valued coefficients preceding the cluster, and the number of non-zero-valued coefficients in the cluster. The encoding of the cluster also includes encoding a parameter indicative of the number of amplitude-1 trailing non-zero-valued coefficients in the cluster, in one version with the parameter indicative of the number of trailing amplitude-1 coefficients part of the joint events such that the coding is according to a 3-dimensional joint variable length coding table. The method further includes encoding the amplitudes of the non-zero-valued coefficients that are not encoded by the joint encoding, e.g., encoding the amplitudes of the other than the trailing amplitude-1 coefficients.

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