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1. 发明授权

US08494295B2 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：US08494295B2
公开(公告)日：2013-07-23
申请号：US13398741
申请日：2012-02-16
申请人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. Pelton
发明人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. 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： Disclosed are apparatuses, computer readable storage media with instructions that carry out methods, and methods of (a) coding quantized transform coefficients as occur in image compression to form codewords, and (b) decoding a bitstream comprising the codewords. The coding combines a position identifying method to identify the relative position of clusters of consecutive non-zero-valued quantized transform coefficients, an amplitude event identifying method to identify amplitude events in the clusters of non-zero-valued quantized transform coefficients, and a coding method to code the position events, amplitude events, and signs of the amplitudes in the clusters. The coding method is particularly applicable to an ordered series of quantized transform coefficients where clusters are likely-to-occur.
摘要翻译：公开了具有执行方法的指令的装置，具有指令的计算机可读存储介质，以及（a）对图像压缩中出现的量化变换系数进行编码以形成码字的方法，以及（b）对包含码字的比特流进行解码。编码结合了位置识别方法来识别连续非零值量化变换系数的簇的相对位置，用于识别非零值量化变换系数的簇中的幅度事件的幅度事件识别方法，以及编码方法来编码聚类中的位置事件，振幅事件和振幅的符号。编码方法特别适用于可能发生簇的有序序列的量化变换系数。

2. 发明授权

US07796825B2 Losslessly improving compression of compressed image data 有权
标题翻译：无损地改进压缩图像数据的压缩
公开(公告)号：US07796825B2
公开(公告)日：2010-09-14
申请号：US11675773
申请日：2007-02-16
申请人： Wen-hsiung Chen , Dov Rosenfeld
发明人： Wen-hsiung Chen , Dov Rosenfeld
IPC分类号： G06K9/36
CPC分类号： H04N19/93 , H04N19/136 , H04N19/18 , H04N19/194 , H04N19/40 , H04N19/48 , H04N19/61 , H04N19/91
摘要： For data compressed using the first compression method that includes codewords generated by variable length coding sets of quantized transform coefficients using a first variable length coding method, decoding the codewords to create ordered sets of quantized transform coefficients, each created set forming an ordered series of quantized transform coefficients, and re-encoding the created ordered sets of quantized transform coefficients using a second variable length coding method to produce a re-coded set of codewords. The second variable length coding method produces shorter codewords, on average, than the first variable length coding method. The decoding and re-encoding is a lossless process such that no additional quantization or other errors are introduced to the received data by the method.
摘要翻译：对于使用第一压缩方法压缩的数据，其包括使用第一可变长度编码方法的量化变换系数的可变长度编码集合生成的码字，对码字进行解码以创建量化变换系数的有序集合，每个创建的集合形成量化的有序序列变换系数，并且使用第二可变长度编码方法重新编码所创建的量化变换系数的有序集合，以产生重新编码的码字集合。第二可变长度编码方法平均地产生比第一可变长度编码方法更短的码字。解码和重新编码是一种无损处理，使得通过该方法不会对所接收的数据引入额外的量化或其他错误。

3. 发明申请

US20100067814A1 VARIABLE LENGTH CODING FOR CLUSTERED TRANSFORM COEFFICIENTS IN VIDEO COMPRESSION 有权
标题翻译：视频压缩中集群变换系数的可变长度编码
公开(公告)号：US20100067814A1
公开(公告)日：2010-03-18
申请号：US12626409
申请日：2009-11-25
申请人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. Pelton
发明人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. 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。

4. 发明授权

US07680349B2 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：US07680349B2
公开(公告)日：2010-03-16
申请号：US11385183
申请日：2006-03-20
申请人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. Pelton
发明人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. 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。

5. 发明申请

US20080199088A1 LOSSLESSLY IMPROVING COMPRESSION OF COMPRESSED IMAGE DATA 有权
标题翻译：无损改进压缩图像数据的压缩
公开(公告)号：US20080199088A1
公开(公告)日：2008-08-21
申请号：US11675773
申请日：2007-02-16
申请人： Wen-hsiung Chen , Dov Rosenfeld
发明人： Wen-hsiung Chen , Dov Rosenfeld
IPC分类号： G06K9/36
CPC分类号： H04N19/93 , H04N19/136 , H04N19/18 , H04N19/194 , H04N19/40 , H04N19/48 , H04N19/61 , H04N19/91
摘要： For data compressed using the first compression method that includes codewords generated by variable length coding sets of quantized transform coefficients using a first variable length coding method, decoding the codewords to create ordered sets of quantized transform coefficients, each created set forming an ordered series of quantized transform coefficients, and re-encoding the created ordered sets of quantized transform coefficients using a second variable length coding method to produce a re-coded set of codewords. The second variable length coding method produces shorter codewords, on average, than the first variable length coding method. The decoding and re-encoding is a lossless process such that no additional quantization or other errors are introduced to the received data by the method.
摘要翻译：对于使用第一压缩方法压缩的数据，其包括使用第一可变长度编码方法的量化变换系数的可变长度编码集合生成的码字，对码字进行解码以创建量化变换系数的有序集合，每个创建的集合形成量化的有序序列变换系数，并且使用第二可变长度编码方法重新编码所创建的量化变换系数的有序集合，以产生重新编码的码字集合。第二可变长度编码方法平均地产生比第一可变长度编码方法更短的码字。解码和重新编码是一种无损处理，使得通过该方法不会对所接收的数据引入额外的量化或其他错误。

6. 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。

7. 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。

8. 发明授权

US08131096B2 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：US08131096B2
公开(公告)日：2012-03-06
申请号：US13041376
申请日：2011-03-05
申请人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. Pelton
发明人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. 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会出现簇的一系列量化变换系数。

9. 发明申请

US20110150352A1 VARIABLE LENGTH CODING FOR CLUSTERED TRANSFORM COEFFICIENTS IN VIDEO COMPRESSION 有权
标题翻译：视频压缩中集群变换系数的可变长度编码
公开(公告)号：US20110150352A1
公开(公告)日：2011-06-23
申请号：US13041376
申请日：2011-03-05
申请人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. Pelton
发明人： Wen-hsiung Chen , Fang Wu , John A. Toebes , Dov Rosenfeld , Gregory D. Pelton
IPC分类号： G06K9/36 , G06K9/00
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，以及编码方法来编码簇中的位置事件，振幅事件和振幅的符号。该方法特别适用于可能发生簇的一系列量化变换系数。

10. 发明授权

US07471840B2 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：US07471840B2
公开(公告)日：2008-12-30
申请号：US10922508
申请日：2004-08-18
申请人： John A. Toebes , Wen-hsiung Chen , Fang Wu , Dov Rosenfeld
发明人： John A. 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。

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