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1. 发明授权

US06411231B1 Encoding, decoding, and probability estimation method 有权
标题翻译：编码，解码和概率估计方法
公开(公告)号：US06411231B1
公开(公告)日：2002-06-25
申请号：US09275006
申请日：1999-03-24
申请人： Taichi Yanagiya , Tomohiro Kimura , Ikuro Ueno , Masayuki Yoshida , Fumitaka Ono
发明人： Taichi Yanagiya , Tomohiro Kimura , Ikuro Ueno , Masayuki Yoshida , Fumitaka Ono
IPC分类号： H03M700
CPC分类号： H03M7/4006
摘要： In an adaptive probability estimation method, an index referring to coding parameters is determined according to occurrence probabilities of symbols from estimated occurrence counts of symbols, thresholds for probability values that determine the probability intervals corresponding to the indexes are set to values that are examined with small operational load, and an index referring to the corresponding occurrence probability is selected without division, using the probability intervals determined by the thresholds for probability values.
摘要翻译：在自适应概率估计方法中，根据来自估计的符号发生次数的符号的出现概率来确定参照编码参数的索引，确定与索引对应的概率间隔的概率值的阈值被设置为小的检查值使用由概率值的阈值确定的概率间隔来选择参考相应出现概率的索引而不分割。

2. 发明授权

US5991449A Method and apparatus for encoding and decoding an image 失效
标题翻译：用于对图像进行编码和解码的方法和装置
公开(公告)号：US5991449A
公开(公告)日：1999-11-23
申请号：US680053
申请日：1996-07-15
申请人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Naoto Tanabe
发明人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Naoto Tanabe
IPC分类号： H04N19/102 , G06T9/00 , H03M7/36 , H04N1/41 , H04N19/103 , H04N19/134 , H04N19/136 , H04N19/137 , H04N19/182 , H04N19/189 , H04N19/192 , H04N19/196 , H04N19/423 , H04N19/426 , H04N19/50 , H04N19/85 , H04N19/91 , G06K9/36
CPC分类号： H04N19/593
摘要： An image memory outputs a target encoding pixel and a plurality of reference pixels in the vicinity thereof. A boundary mode determining unit determines a maximum value and a minimum value of the reference pixels, determines an average value of the maximum value and the minimum value, compares the respective reference pixel values with the average value, detects a boundary in the target encoding pixel and the reference pixels based on comparison results, and detects a pixel distribution state of the reference pixels based on the detected boundary. An adaptive predictor calculates a prediction value by performing a calculation based on a function corresponding to the pixel distribution state and the reference pixels. A prediction difference calculating unit determines a difference value between the prediction value and a value of the target encoding pixel. A prediction coincidence determining unit compares the prediction value and the target encoding pixel value, and outputs a comparison result as a binary signal. A context generator generates a context based on the pixel distribution state and the difference value of the prediction difference calculating unit. An arithmetic encoder encodes the binary signal based on the context thus generated.
摘要翻译：图像存储器输出其附近的目标编码像素和多个参考像素。边界模式确定单元确定参考像素的最大值和最小值，确定最大值和最小值的平均值，将各个参考像素值与平均值进行比较，检测目标编码像素中的边界和基于比较结果的参考像素，并且基于检测到的边界来检测参考像素的像素分布状态。自适应预测器通过基于与像素分布状态和参考像素对应的功能进行计算来计算预测值。预测差分计算单元确定预测值和目标编码像素的值之间的差值。预测符号确定单元将预测值和目标编码像素值进行比较，并输出比较结果作为二进制信号。上下文生成器基于像素分布状态和预测差分计算单元的差值来生成上下文。算术编码器根据这样生成的上下文对二进制信号进行编码。

3. 发明授权

US06636641B1 Encoding apparatus, decoding apparatus, encoding method and decoding method 有权
标题翻译：编码装置，解码装置，编码方法及解码方法
公开(公告)号：US06636641B1
公开(公告)日：2003-10-21
申请号：US09458061
申请日：1999-12-10
申请人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
发明人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
IPC分类号： G06K900
CPC分类号： H04N1/41 , H04N19/13 , H04N19/137 , H04N19/182 , H04N19/423 , H04N19/593
摘要： By combining a plurality of encoding methods actively, an encoding efficiency is enhanced. The first encoder encodes a result of determination whether a prediction error is zero or not. The second encoder encodes the prediction error unless the prediction error is zero. The third encoder encodes the prediction error regardless of whether the prediction error is zero or not. The mode determinator determines the encoding mode, and the encoding controller selectively operates the first encoder, the second encoder, and the third encoder according to the encoding mode determined.
摘要翻译：通过积极地组合多种编码方式，提高了编码效率。第一编码器对预测误差是否为零的确定结果进行编码。第二编码器编码预测误差，除非预测误差为零。无论预测误差是否为零，第三编码器对预测误差进行编码。模式确定器确定编码模式，并且编码控制器根据确定的编码模式选择性地操作第一编码器，第二编码器和第三编码器。

4. 发明授权

US06188793B1 Encoding apparatus, decoding apparatus, encoding method and decoding method 失效
标题翻译：编码装置，解码装置，编码方法及解码方法
公开(公告)号：US06188793B1
公开(公告)日：2001-02-13
申请号：US08952723
申请日：1997-11-19
申请人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
发明人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
IPC分类号： G06K900
CPC分类号： H04N1/41 , H04N19/12 , H04N19/14 , H04N19/182 , H04N19/593 , H04N19/93
摘要： By combining a plurality of encoding methods actively, an encoding efficiency is enhanced. The first encoder encodes a result of determination whether a prediction error is zero or not. The second encoder encodes the prediction error unless the prediction error is zero. The third encoder encodes the prediction error regardless of whether the prediction error is zero or not. The mode determinator determines the encoding mode, and the encoding controller selectively operates the first encoder, the second encoder, and the third encoder according to the encoding mode determined.
摘要翻译：通过积极地组合多种编码方式，提高了编码效率。第一编码器对预测误差是否为零的确定结果进行编码。第二编码器编码预测误差，除非预测误差为零。无论预测误差是否为零，第三编码器对预测误差进行编码。模式确定器确定编码模式，并且编码控制器根据确定的编码模式选择性地操作第一编码器，第二编码器和第三编码器。

5. 发明授权

US6075471A Adaptive coding method 失效
标题翻译：自适应编码方法
公开(公告)号：US6075471A
公开(公告)日：2000-06-13
申请号：US41134
申请日：1998-03-12
申请人： Tomohiro Kimura , Fumitaka Ono , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida
发明人： Tomohiro Kimura , Fumitaka Ono , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida
IPC分类号： H04N19/00 , H03M7/30 , H03M7/40 , H04N1/413 , H04N19/423 , H04N19/91 , H03M7/00
CPC分类号： H03M7/4006
摘要： An adaptive coding method is comprised of: a fourth step (508), (510) for calculating an occurrence frequency of either the more probable symbol (MPS) or the less probable symbol (LPS) with respective to the entered input; a fifth step (511) for comparing an occurrence time accumulated value calculated as the occurrence frequency at the fourth step with a preselected value (threshold value), and for reducing the occurrence time accumulated value by 1/2 in the case that the occurrence time accumulated value reaches the preselected value (threshold value); and a sixth step (513) for defining the more probable symbol (MPS) and the less probable symbol (LPS) in correspondence with a predetermined region on a numerical line with respect to the data signal to thereby output coordinate values on the numerical line as a corded word.
摘要翻译：自适应编码方法包括：第四步骤（508），（510），用于相应于输入的输入计算更可能符号（MPS）或较小可能符号（LPS）的出现频率; 第五步骤（511），用于将作为第四步骤的出现频率计算的出现时间累积值与预选值（阈值）进行比较，并且将发生时间累加值减少+ E，将1/2 + EE 发生时间累积值达到预选值（阈值）的情况; 以及第六步骤（513），用于与数据信号上的数字行上的预定区域相对应地定义更可能的符号（MPS）和较少的可能符号（LPS），从而在数字线上输出坐标值作为一个有用的词

6. 发明授权

US06744925B2 Encoding apparatus, decoding apparatus, encoding method, and decoding method 有权
公开(公告)号：US06744925B2
公开(公告)日：2004-06-01
申请号：US09995661
申请日：2001-11-29
申请人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
发明人： Tomohiro Kimura , Ikuro Ueno , Taichi Yanagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
IPC分类号： G06K900
CPC分类号： H04N1/41 , H04N19/13 , H04N19/157 , H04N19/593
摘要： Encoding efficiency is enhanced by actively combining a plurality of encoding methods. A picture element memory receives and stores picture elements within a predetermined range. A mode determinator selects an encoding mode based upon a reference picture element. A first encoding section and a second encoding section predicts the value of the encoded picture element, determines whether the prediction is correct, and then encodes the value of the encoding picture element based on the determination result and outputs a codeword for the encoding picture element. An encoding controller selectively operates the first encoding section and the second encoding section based upon one of the specific encoding modes and the other encoding mode other than the specific encoding mode selected by the mode determinator.

7. 发明授权

US06754393B2 Encoding apparatus, decoding apparatus, encoding method, and decoding method 有权
标题翻译：编码装置，解码装置，编码方法和解码方法
公开(公告)号：US06754393B2
公开(公告)日：2004-06-22
申请号：US10419962
申请日：2003-04-22
申请人： Tomohiro Kimura , Ikuro Ueno , Taich Nagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
发明人： Tomohiro Kimura , Ikuro Ueno , Taich Nagiya , Masayuki Yoshida , Fumitaka Ono , Narihiro Matoba , Kunio Ueda
IPC分类号： G06K900
CPC分类号： H04N1/41 , H04N19/13 , H04N19/157 , H04N19/593
摘要： Encoding efficiency is enhanced by actively combining a plurality of encoding methods. A picture element memory receives and stores picture elements within a predetermined range. A mode determinator selects an encoding mode based upon a reference picture element. A first encoding section and a second encoding section predicts the value of the encoded picture element, determines whether the prediction is correct, and then encodes the value of the encoding picture element based on the determination result and outputs a codeword for the encoding picture element. An encoding controller selectively operates the first encoding section and the second encoding section based upon one of the specific encoding modes and the other encoding mode other than the specific encoding mode selected by the mode determinator.
摘要翻译：通过主动组合多种编码方法来增强编码效率。图像元素存储器将图像元素接收并存储在预定范围内。模式确定器基于参考图像元素选择编码模式。第一编码部分和第二编码部分预测编码图像元素的值，确定预测是否正确，然后基于确定结果对编码图像元素的值进行编码，并输出编码图像元素的码字。编码控制器基于特定编码模式和除了由模式确定器选择的特定编码模式之外的其他编码模式之一来选择性地操作第一编码部分和第二编码部分。

8. 发明授权

US06351569B1 Coding method, decoding method, coding device and decoding device 有权
标题翻译：编码方法，解码方法，编码装置和解码装置
公开(公告)号：US06351569B1
公开(公告)日：2002-02-26
申请号：US09155166
申请日：1998-09-23
申请人： Tomohiro Kimura , Masayuki Yoshida , Fumitaka Ono
发明人： Tomohiro Kimura , Masayuki Yoshida , Fumitaka Ono
IPC分类号： G06K936
CPC分类号： G06T9/004
摘要： A prediction value is previously set in an MPS table corresponding to a state number, a state number for an encoding pixel is obtained from a STATE table, the prediction value is determined based on the MPS table using the state number, a pixel-to-symbol converter compares the prediction value and the encoding pixel to obtain a symbol, and an arithmetic encoder obtains an LPS interval from an LSZ table using the state number for the encoding pixel, and the arithmetic encoder implements encoding based on the symbol and the LPS interval.
摘要翻译：先前在与状态号对应的MPS表中设置预测值，从STATE表获得编码像素的状态号，根据使用状态号的MPS表确定预测值，符号转换器比较预测值和编码像素以获得符号，并且算术编码器使用编码像素的状态号从LSZ表获得LPS间隔，并且算术编码器基于符号和LPS间隔来实现编码。

9. 发明授权

US5404140A Coding system 失效
标题翻译：编码系统
公开(公告)号：US5404140A
公开(公告)日：1995-04-04
申请号：US180644
申请日：1994-01-13
申请人： Fumitaka Ono , Tomohiro Kimura , Masayuki Yoshida , Shigenori Kino
发明人： Fumitaka Ono , Tomohiro Kimura , Masayuki Yoshida , Shigenori Kino
IPC分类号： H03M7/40 , H03M7/34
CPC分类号： H03M7/4006
摘要： A coding system comprises the comparing circuit which compares a magnitude of the range on the number line which is allocated to the most probability symbol with a magnitude of the fixed range on the number line which is allocated to the Less Probability Symbol. If the range allocated to the MPS is smaller than that to the LPS, and when the symbol is the MPS, the range allocated to the LPS is generated. If the range allocated to the MPS is smaller than that to the LPS, and when the symbol is the LPS, the range allocated to the MPS is generated. By the system, a coding efficiency is improved especially when a probability of occurrence of LPS (Less Probability Symbol) is approximate to 1/2.
摘要翻译：编码系统包括比较电路，其将分配给最大概率符号的号线上的范围的大小与分配给较小概率符号的号线上的固定范围的大小进行比较。如果分配给MPS的范围小于LPS的范围，并且当符号是MPS时，则生成分配给LPS的范围。如果分配给MPS的范围小于LPS的范围，并且当符号是LPS时，生成分配给MPS的范围。通过该系统，当LPS的发生概率（Less概率符号）近似为1/2时，编码效率得到改善。

10. 再颁专利

USRE35781E Coding method of image information 失效
标题翻译：图像信息的编码方法
公开(公告)号：USRE35781E
公开(公告)日：1998-05-05
申请号：US553235
申请日：1995-11-07
申请人： Fumitaka Ono , Shigenori Kino , Masayuki Yoshida , Tomohiro Kimura
发明人： Fumitaka Ono , Shigenori Kino , Masayuki Yoshida , Tomohiro Kimura
IPC分类号： H03M7/40 , H04N1/417 , H03M7/34
CPC分类号： H04N1/417 , H03M7/4006
摘要： A coding method of a binary Markov information source comprises the steps of providing a range on a number line from 0 to 1 which corresponds to an output symbol sequence from the information source, and performing data compression by binary expressing the position information on the number line corresponding to the output symbol sequence. The present method further includes the steps of providing a normalization number line to keep a desired calculation accuracy by expanding a range of the number line which includes a mapping range, by means of a multiple of a power of 2, when the mapping range becomes below 0.5 of the range of the number line; allocating a predetermined mapping range on the normalization number line for less probable symbols LPS proportional to its normal occurrence probability; allocating the remaining mapping range on the normalization number line for more probable symbols MPS; and reassigning the predetermined mapping range to the remaining mapping range the half of a portion where the allocated remaining range is less than 0.5, when the allocated remaining range becomes below 0.5.
摘要翻译：二进制马尔科夫信息源的编码方法包括以下步骤：在从数字行0到1之间提供一个对应于来自信息源的输出符号序列的范围，以及通过二进制数据压缩来表示数字行上的位置信息对应于输出符号序列。本方法还包括以下步骤：提供归一化数字行以通过在映射范围变得低于2的情况下通过2的幂的倍数扩展包括映射范围的数字行的范围来保持期望的计算精度数字线范围的0.5; 在归一化数行上分配与其正常发生概率成比例的较小可能符号LPS的预定映射范围; 在归一化数字行上分配剩余的映射范围以获得更可能的符号MPS; 并且当所分配的剩余范围变得低于0.5时，将预定映射范围重新分配给剩余映射范围，其中所分配的剩余范围小于0.5的部分的一半。

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