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1. 发明申请

US20070019877A1 Variable length coding for clustered transform coefficients in video compression 有权
标题翻译：视频压缩中聚类变换系数的可变长度编码
公开(公告)号：US20070019877A1
公开(公告)日：2007-01-25
申请号：US11385183
申请日：2006-03-20
申请人： Wen-hsiung Chen , Fang Wu , John Toebes , Dov Rosenfeld , Gregory Pelton
发明人： Wen-hsiung Chen , Fang Wu , John Toebes , Dov Rosenfeld , Gregory Pelton
IPC分类号： G06K9/36
CPC分类号： H04N19/93 , H04N19/13 , H04N19/14 , H04N19/146 , H04N19/159 , H04N19/17 , H04N19/18 , H04N19/48 , H04N19/91
摘要： Coding quantized transform coefficients as occur in image compression combines a position identifying method to identify the relative position of clusters of consecutive non-zero-valued coefficients, an amplitude event identifying method to identify amplitude events in the clusters of non-zero-valued coefficients, and a coding method to code the position events, amplitude events, and signs of the amplitudes in the clusters. The method is particularly applicable to a series of quantized transform coefficients where clusters are likely to occur.
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识别方法来识别连续非零值系数的簇的相对位置，用于识别非零值系数的簇中的幅度事件的幅度事件识别方法，以及编码方法，用于对簇中的幅度的位置事件，振幅事件和符号进行编码。该方法特别适用于可能发生簇的一系列量化变换系数。

2. 发明申请

US20060039621A1 Two-dimensional variable length coding of runs of zero and non-zero transform coefficients for image compression 有权
标题翻译：用于图像压缩的零和非零变换系数的二维可变长度编码
公开(公告)号：US20060039621A1
公开(公告)日：2006-02-23
申请号：US10922508
申请日：2004-08-18
申请人： John Toebes , Wen-hsiung Chen , Fang Wu , Dov Rosenfeld
发明人： John Toebes , Wen-hsiung Chen , Fang Wu , Dov Rosenfeld
IPC分类号： G06K9/36
CPC分类号： H04N19/48 , H04N19/13 , H04N19/14 , H04N19/159 , H04N19/17 , H04N19/18
摘要： A method, apparatus, and carrier medium to encode a series of quantized transform coefficients. The method includes identifying events that each includes a run of zero-valued coefficients preceding a run of one or more non-zero-valued coefficients, and for each such event, jointly encoding the run lengths of the preceding run of zero-valued coefficients and the following run of non-zero-valued coefficients with a codeword, such that for at least some events, relatively more likely-to-occur pairs of runlengths are encoded by a shorter codeword than relatively less likely-to-occur runlengths. The method further includes encoding each amplitude in the run of consecutive non-zero-valued coefficients, and encoding the signs of such coefficients. The method is applicable to encoding a region in the series where there is likely to be a cluster of non-zero-valued coefficients.
摘要翻译：一种用于对一系列量化变换系数进行编码的方法，装置和载体介质。该方法包括识别每个事件包括在一个或多个非零值系数的运行之前的零值系数的运行，并且对于每个这样的事件，联合编码前面的零值系数的运行长度，以及具有码字的以下运行的非零值系数，使得对于至少一些事件，相对更可能出现的游程长度对由较短的码字编码，而不是相对较少可能发生的游程长度。该方法还包括对连续非零值系数的运行中的每个振幅进行编码，以及对这些系数的符号进行编码。该方法适用于对可能存在非零值系数的簇的系列中的区域进行编码。

3. 发明申请

US20050276498A1 Video compression using multiple variable length coding processes for multiple classes of transform coefficient blocks 有权
标题翻译：使用多种变换系数块的多个可变长度编码处理的视频压缩
公开(公告)号：US20050276498A1
公开(公告)日：2005-12-15
申请号：US10910712
申请日：2004-08-03
申请人： Wen-hsiung Chen , Fang Wu , Gregory Pelton , John Toebes
发明人： Wen-hsiung Chen , Fang Wu , Gregory Pelton , John Toebes
IPC分类号： G06K9/36 , H03M7/34 , H04N7/26
CPC分类号： H04N19/136 , H04N19/12 , H04N19/13 , H04N19/147
摘要： A method and apparatus to variable length code an ordered series of quantized transform coefficients of an image block. The method classifies the series into one of a plurality of classes. Each class has a corresponding coding process that is applicable to the statistical distribution of the coefficients in the series. The series is coded according to the particular corresponding coding process of the class of the classifying.
摘要翻译：一种可变长度码的图像块的有序序列的量化变换系数的方法和装置。该方法将该系列分类为多个类中的一个。每个类都有相应的编码过程，适用于系列中系数的统计分布。该系列根据分类类别的特定对应编码过程进行编码。

4. 发明申请

US20050276497A1 Extended hybrid variable length coding method for low bit rate video coding 有权
标题翻译：用于低比特率视频编码的扩展混合可变长度编码方法
公开(公告)号：US20050276497A1
公开(公告)日：2005-12-15
申请号：US10898654
申请日：2004-07-22
申请人： Wen-hsiung Chen , Fang Wu , Gregory Pelton , John Toebes
发明人： Wen-hsiung Chen , Fang Wu , Gregory Pelton , John Toebes
IPC分类号： G06K9/36 , H03M7/34 , H04N7/26
CPC分类号： H04N19/136 , H04N19/91
摘要： A method and an apparatus of image compression, and a memory to store a data structure for compression. The method includes, for an ordered series of quantized coefficients of a transform of an image block, forming from the series events that are a run of non-zero-valued coefficients in a first contiguous region defined by a breakpoint, a run of zero-valued coefficients in the first region, or a run of zero-valued coefficients that ends in a non-zero-amplitude coefficient in a second region defined by the breakpoint. A codeword is formed for each runlength of non-zero-valued and zero-valued coefficients in the first region using a first- and a second coding method, respectively, and, and encoding the runs of zero-valued coefficient that end in a non-zero value in the second region according to a third coding method, including providing an exception codeword when the ending amplitude is not 1.
摘要翻译：图像压缩的方法和装置，以及存储用于压缩的数据结构的存储器。该方法包括对于图像块的变换的有序序列的量化系数，从由断点定义的第一连续区域中的非零值系数的一系列事件形成，或在由断点定义的第二区域中以非零幅度系数结束的零值系数的运行。使用第一和第二编码方法分别为第一区域中的非零值和零值系数的每个游程长度形成码字，并且编码以非零值和零值系数结束的零值系数的运行，根据第三编码方法在第二区域中的零值，包括当结束幅度不为1时提供异常码字。

5. 发明申请

US20050276487A1 Hybrid variable length coding method for low bit rate video coding 有权
标题翻译：用于低比特率视频编码的混合可变长度编码方法
公开(公告)号：US20050276487A1
公开(公告)日：2005-12-15
申请号：US10869229
申请日：2004-06-15
申请人： Wen-hsiung Chen , Fang Wu , Gregory Pelton , John Toebes
发明人： Wen-hsiung Chen , Fang Wu , Gregory Pelton , John Toebes
IPC分类号： G06K9/36 , H03M7/34 , H04N7/26
CPC分类号： H04N19/136 , H04N19/91
摘要： A method and an apparatus of image compression, and a memory to store a data structure for compression. The method includes, for an ordered series of quantized coefficients of a transform of an image block, forming events from the series of quantized transform coefficients, each event being a run of non-zero-valued coefficients in a first contiguous region defined by a breakpoint, a run of zero-valued coefficients in the first region, or a run of zero-valued coefficients in a second region defined by the breakpoint, the breakpoint defining the first region and a second continuous region in the series following the first region. The method further includes forming a codeword for each runlength of non-zero-valued coefficients in the first region, the forming a codeword according to a first coding method, forming a codeword for each runlength of zero-valued coefficients in the first region, the forming a codeword according to a second coding method, and encoding the coefficient values in the second region according to a third coding method, the third coding method including identifying runs of zero-valued coefficients in the second region. Relatively short codewords are formed to represent runlengths that are relatively more likely to occur, and relatively long codewords are formed to represent runlengths that are relatively less likely to occur.
摘要翻译：图像压缩的方法和装置，以及存储用于压缩的数据结构的存储器。该方法包括对于图像块的变换的有序序列的量化系数，从一系列量化变换系数中形成事件，每个事件是由断点定义的第一连续区域中的非零值系数的运行，第一区域中的零值系数的运行，或由断点定义的第二区域中的零值系数的运行，限定第一区域的断点和在第一区域之后的串联中的第二连续区域。该方法还包括为第一区域中的非零值系数的每个游程长度形成码字，根据第一编码方法形成码字，为第一区域中零值系数的每个游程长度形成码字，根据第二编码方法形成码字，并且根据第三编码方法对第二区域中的系数值进行编码，第三编码方法包括识别第二区域中零值系数的运行。形成相对短的码字来表示相对更可能发生的游程长度，并且形成相对长的码字来表示相对不太可能发生的游程长度。

6. 发明申请

US20060039620A1 Video coding using multi-dimensional amplitude coding and 2-D non-zero/zero cluster position coding 有权
标题翻译：使用多维幅度编码和2-D非零/零簇位置编码的视频编码
公开(公告)号：US20060039620A1
公开(公告)日：2006-02-23
申请号：US10922507
申请日：2004-08-18
申请人： Wen-hsiung Chen , Fang Wu , John Toebes
发明人： Wen-hsiung Chen , Fang Wu , John Toebes
IPC分类号： G06K9/36
CPC分类号： H03M7/40 , H04N19/17 , H04N19/60 , H04N19/93
摘要： A Method, apparatus, and carrier medium to encode a series of quantized transform coefficients. The method includes identifying events that each includes a run of one or more non-zero-valued coefficients, and for each such event, encoding the event with a codeword that for at least some events, relatively more likely-to-occur events are encoded by a shorter codeword than relatively less likely-to-occur events, and for each identified event, jointly encoding a plurality of consecutive values in the run of consecutive non-zero-valued coefficients, the joint encoding according to an amplitude coding method. The method is such that relatively short codewords are formed to represent values or sequences of values that are relatively more likely-to-occur, and relatively long codewords are formed to represent values or sequences of values that are relatively less likely-to-occur. The method is applicable to encoding a region in the series where there is likely to be a cluster of non-zero-valued coefficient.
摘要翻译：一种用于对一系列量化变换系数进行编码的方法，装置和载体介质。该方法包括识别每个包括一个或多个非零值系数的运行的事件，并且对于每个这样的事件，用至少一些事件编码该事件，相对更可能发生的事件被编码通过比相对不太可能发生的事件更短的码字，并且对于每个识别的事件，在连续的非零值系数的游程中联合编码多个连续值，根据幅度编码方法进行联合编码。该方法使得形成相对短的码字以表示相对更可能发生的值的值或序列，并且形成相对长的码字以表示相对较不可能发生的值的值或序列。该方法适用于对可能存在非零值系数的簇的系列中的区域进行编码。

7. 发明申请

US20060056720A1 Extended amplitude coding for clustered transform coefficients 有权
公开(公告)号：US20060056720A1
公开(公告)日：2006-03-16
申请号：US11270138
申请日：2005-11-09
申请人： Wen-hsiung Chen , John Toebes
发明人： Wen-hsiung Chen , John Toebes
IPC分类号： G06K9/36
CPC分类号： H04N19/93 , H04N19/60 , 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-valued 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.

8. 发明申请

US20070279266A1 VARIABLE LENGTH CODING FOR SPARSE COEFFICIENTS 有权
标题翻译：可变长度编码稀疏系数
公开(公告)号：US20070279266A1
公开(公告)日：2007-12-06
申请号：US11761307
申请日：2007-06-11
申请人： Wen-hsiung Chen , John Toebes
发明人： Wen-hsiung Chen , John Toebes
IPC分类号： H03M7/40
CPC分类号： H03M7/40 , H04N19/61 , H04N19/91 , H04N19/93
摘要： Coding quantized transform coefficients as occur in image compression includes, for a subset of coefficient amplitude values coding by a first method corresponding to each amplitude of the subset, events of a run of zero or more zero-valued coefficients ending in the single non-zero amplitude, coding by a second method events of a run of zero or more zero-valued coefficients ending in any single non-zero amplitude not in the subset, and coding by a third method the amplitude values of the concatenation of the non-zero amplitude not in the subset. The coding methods produce variable length codewords. The method is suitable for series that have scattered non-zero-valued coefficients.
摘要翻译：在图像压缩中发生的编码量化变换系数包括对于与子集的每个幅度相对应的第一种方法进行编码的系数幅度值子集的子集，零个或多个零值系数的运行结束于单个非零振幅，通过第二种方法对不在子集中的任何单个非零幅度结束的零个或多个零值系数的运行的事件进行编码，并且通过第三种方法编码非零幅度的级联的振幅值不在子集中。编码方法产生可变长度码字。该方法适用于具有分散非零值系数的系列。

9. 发明申请

US20070277219A1 Methods and systems to reduce channel selection transition delay in a digital network 有权
标题翻译：降低数字网络中信道选择转换延迟的方法和系统
公开(公告)号：US20070277219A1
公开(公告)日：2007-11-29
申请号：US11442500
申请日：2006-05-26
申请人： John Toebes , Wen-Hsiung Chen , Jack Cham , Ping Li
发明人： John Toebes , Wen-Hsiung Chen , Jack Cham , Ping Li
IPC分类号： H04N7/16
CPC分类号： H04N7/163 , H04N21/2389 , H04N21/4384 , H04N21/4385 , H04N21/64322 , H04N21/64784 , H04N21/6581
摘要： A method of reducing the channel selection transition delay from a first media data channel to a second media data channel includes the operations of accumulating an independent media data frame and any related dependent media data frames based on a first decoder decoding at least a first portion of a second channel to form a second channel current media state, receiving a channel change request from a second decoder to change decoding to the second media channel, identifying an insertion position for a current independent frame relative to a current second channel frame set, and generating the current independent frame based on the second channel current media state corresponding to the insertion position. The dependent media data frames are used to modify the second channel current media state based on the independent media data frame.
摘要翻译：减少从第一媒体数据信道到第二媒体数据信道的信道选择转换延迟的方法包括：基于第一解码器对至少第一部分的第一部分进行解码的累加独立媒体数据帧和任何相关的相关媒体数据帧的操作形成第二信道当前媒体状态的第二信道，从第二解码器接收信道改变请求以将解码改变为第二媒体信道，识别当前独立帧相对于当前第二信道帧集合的插入位置，以及生成基于与插入位置对应的第二通道当前媒体状态的当前独立帧。依赖媒体数据帧用于基于独立媒体数据帧来修改第二信道当前媒体状态。

10. 发明授权

US08245264B2 Methods and systems to reduce channel selection transition delay in a digital network 有权
标题翻译：降低数字网络中信道选择转换延迟的方法和系统
公开(公告)号：US08245264B2
公开(公告)日：2012-08-14
申请号：US11442500
申请日：2006-05-26
申请人： John Toebes , Wen-Hsiung Chen , Jack Cham , Ping Li
发明人： John Toebes , Wen-Hsiung Chen , Jack Cham , Ping Li
IPC分类号： H04N7/173
CPC分类号： H04N7/163 , H04N21/2389 , H04N21/4384 , H04N21/4385 , H04N21/64322 , H04N21/64784 , H04N21/6581
摘要： A method of reducing the channel selection transition delay from a first media data channel to a second media data channel includes the operations of accumulating an independent media data frame and any related dependent media data frames based on a first decoder decoding at least a first portion of a second channel to form a second channel current media state, receiving a channel change request from a second decoder to change decoding to the second media channel, identifying an insertion position for a current independent frame relative to a current second channel frame set, and generating the current independent frame based on the second channel current media state corresponding to the insertion position. The dependent media data frames are used to modify the second channel current media state based on the independent media data frame.
摘要翻译：减少从第一媒体数据信道到第二媒体数据信道的信道选择转换延迟的方法包括：基于第一解码器对至少第一部分的第一部分进行解码的累加独立媒体数据帧和任何相关的相关媒体数据帧的操作形成第二信道当前媒体状态的第二信道，从第二解码器接收信道改变请求以将解码改变为第二媒体信道，识别当前独立帧相对于当前第二信道帧集合的插入位置，以及生成基于与插入位置对应的第二通道当前媒体状态的当前独立帧。依赖媒体数据帧用于基于独立媒体数据帧来修改第二信道当前媒体状态。

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