公开(公告)号：US20100295713A1

公开(公告)日：2010-11-25

申请号：US12596650

申请日：2008-01-07

申请人： Ikuro Ueno ,  Ryuta Suzuki ,  Tomohiro Kimura

发明人： Ikuro Ueno ,  Ryuta Suzuki ,  Tomohiro Kimura

IPC分类号： H03M7/30

CPC分类号： H04N1/41 ,  H03M7/4006 ,  H04N1/32101

摘要： An coding apparatus includes a number-of-additional-bits calculating means 107 for calculating the number of bits which can be set, as additional bits, at an end of a code sequence in which an information source is entropy-coded on the basis of information about the end of the code sequence, the information being driven from code data which form the code sequence, and an additional bit coding means 108 for setting the additional bits having the number of bits at the end of the code sequence.

摘要翻译： 一种编码装置包括：附加比特数计算装置107，用于在基于熵编码的信息源被熵编码的码序列的末尾处计算可设置的比特数作为附加比特 关于代码序列结束的信息，从形成代码序列的代码数据驱动的信息，以及用于设置在代码序列结束时具有位数的附加位的附加位编码装置108。

公开(公告)号：US20070230802A1

公开(公告)日：2007-10-04

申请号：US11501072

申请日：2006-08-09

申请人： Kiyotaka Kato ,  Ikuro Ueno ,  Ryuta Suzuki

发明人： Kiyotaka Kato ,  Ikuro Ueno ,  Ryuta Suzuki

IPC分类号： G06K9/36

CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/147 ,  H04N19/156 ,  H04N19/172 ,  H04N19/186 ,  H04N19/187 ,  H04N19/44

摘要： Provided in an image decoding apparatus including an input unit for inputting a code stream; a low frequency sub-band component decoding unit for decoding a low frequency component; a high frequency sub-band component decoding unit for decoding a high frequency component; a substitute image producing unit for processing the low frequency component decoded image to produce a substitute image; an error detecting unit for detecting an error when a decoding operation is carried out; a timing producing unit for producing a timing signal; a remaining decoding time calculating unit for calculating a remaining decoding time based on both the error detection signal and the timing signal; an output image control unit for controlling to adaptively select an output image based on the error detection signal and the decoding process time signal; and an output image selecting unit for selecting any one of the high frequency component decoded image and the substitute image based on the control operation by the output image control means, and for outputting the selected image as a display image.

摘要翻译： 提供在包括用于输入代码流的输入单元的图像解码装置中; 用于解码低频分量的低频子带分量解码单元; 用于解码高频分量的高频子带分量解码单元; 替代图像产生单元，用于处理低频分量解码图像以产生替代图像; 用于在执行解码操作时检测错误的错误检测单元; 定时产生单元，用于产生定时信号; 剩余解码时间计算单元，用于基于误差检测信号和定时信号两者计算剩余解码时间; 输出图像控制单元，用于基于所述错误检测信号和所述解码处理时间信号来控制自适应地选择输出图像; 以及输出图像选择单元，用于基于输出图像控制装置的控制操作来选择高频分量解码图像和替代图像中的任何一个，并且用于输出所选择的图像作为显示图像。

公开(公告)号：US07720297B2

公开(公告)日：2010-05-18

申请号：US11508218

申请日：2006-08-23

申请人： Ikuro Ueno ,  Ryuta Suzuki

发明人： Ikuro Ueno ,  Ryuta Suzuki

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/61 ,  H04N19/115 ,  H04N19/146 ,  H04N19/63 ,  H04N19/647

摘要： An image coding apparatus includes: an entropy coding unit for outputting code data based on control information for every coding pass; a rate control information extracting unit for judging both a continuation and an end of the coding pass based on a calculation result of a distortion and a code amount, which are required in a rate control; and a unit for extracting the code data up to the coding end pass based on control information. The rate control information extracting unit includes: calculation units for calculating both a distortion and a code amount produced by coding each of the coding passes; another calculation unit for calculating a slope based on a relationship between the distortion and the code amount, and a coding pass conducting unit for outputting control information based on a slope, a total code amount of all components, and a total code amount of a specific component.

摘要翻译： 图像编码装置包括：熵编码单元，用于基于每个编码遍的控制信息输出代码数据; 速率控制信息提取单元，用于基于速率控制中所需的失真和代码量的计算结果来判断编码遍历的继续和结束; 以及用于基于控制信息提取直到编码结束通过的代码数据的单元。 速率控制信息提取单元包括：计算单元，用于计算通过编码每个编码遍产生的失真和代码量; 用于基于失真和代码量之间的关系计算斜率的另一个计算单元，以及用于基于斜率输出控制信息的编码通行证导出单元，所有分量的总代码量和特定的代码量的总代码量 零件。

公开(公告)号：US20070230803A1

公开(公告)日：2007-10-04

申请号：US11508218

申请日：2006-08-23

申请人： Ikuro Ueno ,  Ryuta Suzuki

发明人： Ikuro Ueno ,  Ryuta Suzuki

IPC分类号： G06K9/36

CPC分类号： H04N19/61 ,  H04N19/115 ,  H04N19/146 ,  H04N19/63 ,  H04N19/647

摘要： An image coding apparatus includes: an entropy coding unit for outputting code data based on control information for every coding pass; a rate control information extracting unit for judging both a continuation and an end of the coding pass based on a calculation result of a distortion and a code amount, which are required in a rate control; and a unit for extracting the code data up to the coding end pass based on control information. The rate control information extracting unit includes: calculation units for calculating both a distortion and a code amount produced by coding each of the coding passes; another calculation unit for calculating a slope based on a relationship between the distortion and the code amount, and a coding pass conducting unit for outputting control information based on a slope, a total code amount of all components, and a total code amount of a specific component.

摘要翻译： 图像编码装置包括：熵编码单元，用于基于每个编码遍的控制信息输出代码数据; 速率控制信息提取单元，用于基于速率控制中所需的失真和代码量的计算结果来判断编码遍历的继续和结束; 以及用于基于控制信息提取直到编码结束通过的代码数据的单元。 速率控制信息提取单元包括：计算单元，用于计算通过编码每个编码遍产生的失真和代码量; 用于基于失真和代码量之间的关系计算斜率的另一个计算单元，以及用于基于斜率输出控制信息的编码通行证导出单元，所有分量的总代码量和特定的代码量的总代码量 零件。

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。

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。

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.

公开(公告)号：US06489903B2

公开(公告)日：2002-12-03

申请号：US09922853

申请日：2001-08-07

申请人： Tomohiro Kimura ,  Ikuro Ueno ,  Masayuki Yoshida

发明人： Tomohiro Kimura ,  Ikuro Ueno ,  Masayuki Yoshida

IPC分类号： H03M700

CPC分类号： H03M7/4006

摘要： An encoding/decoding method for predicting appearance probability of an information source symbol, while learning, and for dividing a valid section on a numerical straight line into both a first partial section to which an approximate value of the above-mentioned prediction appearance probability is applied and a second partial section remained in the valid section, to which such an arithmetic code is applied, the arithmetic code setting a partial section corresponding to an appearing symbol as a new valid section, is operated by storing thereinto such a fact that the prediction appearance probability is a specific value; by judging that the prediction appearance probability is equal to the specific value by referring to the relevant specific value; and by correcting an allocation between the first partial section and the second partial section when the judgement operation judges that the prediction appearance probability is equal to the specific value.

摘要翻译： 一种编码/解码方法，用于在学习时预测信息源符号的出现概率，并将用于将数字直线上的有效部分划分为应用了上述预测出现概率的近似值的第一部分部分 并且第二部分部分保留在应用这样的算术代码的有效部分中，将对应于出现的符号的部分部分设置为新的有效部分的算术代码通过存储在这样的事实中而被操作：预测外观 概率是一个具体值; 通过参照相关的具体值判断预测出现概率等于具体值; 并且当判断操作判定预测出现概率等于该特定值时，通过校正第一部分部分和第二部分部分之间的分配。

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。

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。