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1. 发明申请

US20090052790A1 IMAGE COMPRESSION DEVICE, COMPRESSING METHOD, STORAGE MEDIUM, IMAGE DECOMPRESSION DEVICE, DECOMPRESSING METHOD, AND STORAGE MEDIUM 失效
标题翻译：图像压缩装置，压缩方法，存储介质，图像解码装置，解压缩方法和存储介质
公开(公告)号：US20090052790A1
公开(公告)日：2009-02-26
申请号：US12268057
申请日：2008-11-10
申请人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
发明人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
IPC分类号： H04N7/26
CPC分类号： H04N19/90 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/182 , H04N19/50
摘要： An image compression device having a prediction unit for predicting a value of a compressing target pixel from peripheral values, and quantizing prediction error between a prediction value of the prediction unit and a value of an actual pixel in a predetermined quantizing step, comprising: a specific pixel level difference evaluation unit sequentially calculating the difference value between the level values as a sum of the prediction values corresponding to each of the compressed pixel immediately before the compressing target pixel and peripheral compressed pixels adjacent to the pixel and the quantization value of the prediction error, and evaluating the sameness of the difference value; and a quantization switching unit controlling the quantization in the quantizing step more precise than the quantizing step used when the difference value continuously indicates the same value as a result of the evaluation by the specific pixel level difference evaluation unit.
摘要翻译：一种图像压缩装置，具有预测单元，用于从外围值预测压缩对象像素的值，并且在预定量化步骤中量化预测单元的预测值与实际像素的值之间的预测误差，包括：像素电平差分评估单元，其顺序地计算电平值之间的差值，作为与压缩目标像素之前的压缩像素和与像素相邻的外围压缩像素之间的每个压缩像素的预测值的和与预测误差的量化值，并评估差值的相同性; 以及量化切换单元，其在与所述特定像素级差分评估单元的评估结果不同的值连续指示相同的值时，比量化步骤更精确地控制量化步长。

2. 发明授权

US08045814B2 Image compression device, compressing method, storage medium, image decompression device, decompressing method, and storage medium 失效
标题翻译：图像压缩装置，压缩方法，存储介质，图像解压缩装置，解压缩方法和存储介质
公开(公告)号：US08045814B2
公开(公告)日：2011-10-25
申请号：US12268057
申请日：2008-11-10
申请人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
发明人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
IPC分类号： G06K9/46
CPC分类号： H04N19/90 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/182 , H04N19/50
摘要： An image compression device having a prediction unit for predicting a value of a compressing target pixel from peripheral values, and quantizing prediction error between a prediction value of the prediction unit and a value of an actual pixel in a predetermined quantizing step, comprising: a specific pixel level difference evaluation unit sequentially calculating the difference value between the level values as a sum of the prediction values corresponding to each of the compressed pixel immediately before the compressing target pixel and peripheral compressed pixels adjacent to the pixel and the quantization value of the prediction error, and evaluating the sameness of the difference value; and a quantization switching unit controlling the quantization in the quantizing step more precise than the quantizing step used when the difference value continuously indicates the same value as a result of the evaluation by the specific pixel level difference evaluation unit.
摘要翻译：一种图像压缩装置，具有预测单元，用于从外围值预测压缩对象像素的值，并且在预定量化步骤中量化预测单元的预测值与实际像素的值之间的预测误差，包括：像素电平差分评估单元，其顺序地计算电平值之间的差值，作为与压缩目标像素之前的压缩像素和与像素相邻的外围压缩像素之间的每个压缩像素的预测值的和与预测误差的量化值，并评估差值的相同性; 以及量化切换单元，其在与所述特定像素级差分评估单元的评估结果不同的值连续指示相同的值时，比量化步骤更精确地控制量化步长。

3. 发明申请

US20090052530A1 IMAGE DATA COMPRESSION DEVICE, COMPRESSING METHOD, IMAGE DATA DECOMPRESSION DEVICE, DECOMPRESSING METHOD, AND RECORDING MEDIUM 失效
标题翻译：图像数据压缩装置，压缩方法，图像数据解码装置，解码方法和记录介质
公开(公告)号：US20090052530A1
公开(公告)日：2009-02-26
申请号：US12267975
申请日：2008-11-10
申请人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
发明人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
IPC分类号： H04N7/12
CPC分类号： H04N19/436 , H04N19/105 , H04N19/11 , H04N19/14 , H04N19/16 , H04N19/182 , H04N19/593
摘要： A quantizer quantizes a “prediction error” as a difference value between a pixel X to be compressed and a prediction value X′. A variable-length encoder inputs a quantization number obtained from a quantization table of the quantizer, and outputs a variable-length code (compressed code). A prediction value candidate calculation module calculates candidates 1 through k for a prediction value on the basis of peripheral pixels A, C, and B, and transmits them to a multiplexer (MPX). A prediction value determination module determines a prediction value among the candidates 1 through k for a prediction value on the basis of an intermediate value correspondence table and an intermediate value—image format correspondence table depending on an image format, and transmits a control signal to the multiplexer (MPX). The multiplexer (MPX) outputs one of the candidates 1 through k for a prediction value as a prediction value X′.
摘要翻译：量化器将“预测误差”量化为要压缩的像素X与预测值X'之间的差值。可变长度编码器输入从量化器的量化表获得的量化数，并输出可变长度码（压缩码）。预测值候补计算模块基于周边像素A，C和B计算候选1至k的预测值，并将其发送到多路复用器（MPX）。预测值确定模块根据中间值对应表和取决于图像格式的中间值图像格式对应表来确定候选1至k中的预测值，并将控制信号发送到多路复用器（MPX）。复用器（MPX）将候选1到k之一作为预测值输出作为预测值X'。

4. 发明授权

US08311107B2 Image data compression device, compressing method, image data decompression device, decompressing method, and recording medium 失效
标题翻译：图像数据压缩装置，压缩方法，图像数据解压缩装置，解压缩方法和记录介质
公开(公告)号：US08311107B2
公开(公告)日：2012-11-13
申请号：US12267975
申请日：2008-11-10
申请人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
发明人： Junichi Odagiri , Hironori Yahagi , Shigeru Yoshida
IPC分类号： H04N7/12
CPC分类号： H04N19/436 , H04N19/105 , H04N19/11 , H04N19/14 , H04N19/16 , H04N19/182 , H04N19/593
摘要： A quantizer quantizes a “prediction error” as a difference value between a pixel X to be compressed and a prediction value X′. A variable-length encoder inputs a quantization number obtained from a quantization table of the quantizer, and outputs a variable-length code (compressed code). A prediction value candidate calculation module calculates candidates 1 through k for a prediction value on the basis of peripheral pixels A, C, and B, and transmits them to a multiplexer (MPX). A prediction value determination module determines a prediction value among the candidates 1 through k for a prediction value on the basis of an intermediate value correspondence table and an intermediate value—image format correspondence table depending on an image format, and transmits a control signal to the multiplexer (MPX). The multiplexer (MPX) outputs one of the candidates 1 through k for a prediction value as a prediction value X′.
摘要翻译：量化器将预测误差量化为要压缩的像素X与预测值X'之间的差值。可变长度编码器输入从量化器的量化表获得的量化数，并输出可变长度码（压缩码）。预测值候补计算模块基于周边像素A，C和B计算候选1至k的预测值，并将其发送到多路复用器（MPX）。预测值确定模块根据中间值对应表和取决于图像格式的中间值图像格式对应表来确定候选1至k中的预测值，并将控制信号发送到多路复用器（MPX）。复用器（MPX）将候选1到k之一作为预测值输出作为预测值X'。

5. 发明授权

US5673042A Method of and an apparatus for compressing/decompressing data 失效
标题翻译：用于压缩/解压缩数据的方法和装置
公开(公告)号：US5673042A
公开(公告)日：1997-09-30
申请号：US405209
申请日：1995-03-16
申请人： Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hironori Yahagi
发明人： Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hironori Yahagi
IPC分类号： G06F5/00 , G06F17/30 , G06T9/00 , H03M7/30 , H03M7/46 , H03H7/00
CPC分类号： G06F17/30985 , G06T9/005 , H03M7/3086
摘要： The present invention relates to a method of and an apparatus for compressing/decompressing data, to improve the compression ratio of sliding-dictionary-type Ziv-Lempel codes. A sliding-dictionary-type data compression method finds a matching character string in a coding character string and in a coded character string stored in a dictionary 101. According to the length of the matching character string, the method chooses a raw data mode that codes the matching character string that must consist of a single character as it is, or a reproduction mode that codes the position and length in the dictionary 101 of the matching character string. The method allocates consecutive numbers to different codes to be prepared under the raw data mode and reproduction mode. The method relates any code prepared under one of the raw data mode and reproduction mode to a corresponding one of the consecutive numbers, codes the number according to a code book, and rearranges the code book to shorten the length of the code of the number.
摘要翻译：本发明涉及一种用于压缩/解压缩数据的方法和装置，以提高滑动词典型Ziv-Lempel码的压缩率。滑动字典型数据压缩方法在编码字符串和字典101中存储的编码字符串中找到匹配的字符串。根据匹配字符串的长度，该方法选择编码的原始数据模式必须由单个字符组成的匹配字符串，或者编码匹配字符串的字典101中的位置和长度的再现模式。该方法将连续的数字分配给在原始数据模式和再现模式下准备的不同的代码。该方法将在原始数据模式和再现模式之一下准备的任何代码与相应的一个连续数字相关联，根据代码簿对该编号进行编码，并重新排列代码簿以缩短编号的代码长度。

6. 发明授权

US5801648A Data compressing method, data compressing apparatus, data decompressing method and data decompressing apparatus 失效
标题翻译：数据压缩方法，数据压缩装置，数据解压缩方法和数据解压缩装置
公开(公告)号：US5801648A
公开(公告)日：1998-09-01
申请号：US574436
申请日：1995-12-15
申请人： Noriko Satoh , Yoshiyuki Okada , Shigeru Yoshida , Hironori Yahagi
发明人： Noriko Satoh , Yoshiyuki Okada , Shigeru Yoshida , Hironori Yahagi
IPC分类号： H03M7/42 , H03M7/30 , H03M7/40
CPC分类号： H03M7/40 , H03M7/3084
摘要： A data compressing method involves the use of a data string registering unit for registering a charactor or charactor string and the context and a code information registering unit for registering coding information of the character or character string following the context, the coding information following previous a input data. The data compressing method includes a data string new registering step of, when the input character or character string and the context set is not registering in the string registering unit, register the set in the data string registering unit. The same method also includes a code information new registering step of, when the input character or character string's code information following the context is not registering in the code information registering unit, register the code information in the code information registering unit and a code outputting step of outputting the code following the code information registered in the code information registering unit and a code information updating step of updating the code information registering unit.
摘要翻译：数据压缩方法涉及使用用于登记字符串或字符串的数据字符串登记单元和上下文，以及用于在上下文之后登记字符或字符串的编码信息的代码信息登记单元，在输入之后的编码信息数据。数据压缩方法包括数据串新的登记步骤，当输入字符或字符串和上下文集合未在字符串注册单元中注册时，将该集合注册到数据串登记单元中。同样的方法还包括代码信息新登记步骤，当输入字符或字符串在上下文之后的代码信息未被注册到代码信息登记单元中时，将代码信息注册到代码信息登记单元中，并且代码输出步骤输出代码信息登记单元中登记的代码信息的代码，代码信息更新步骤更新代码信息登记单元。

7. 发明授权

US08306341B2 Image data compression apparatus and decoding apparatus 失效
标题翻译：图像数据压缩装置和解码装置
公开(公告)号：US08306341B2
公开(公告)日：2012-11-06
申请号：US12568099
申请日：2009-09-28
申请人： Junichi Odagiri , Shigeru Yoshida
发明人： Junichi Odagiri , Shigeru Yoshida
IPC分类号： G06K9/36 , H04N11/02
CPC分类号： H04N19/635 , H04N19/122 , H04N19/132 , H04N19/61 , H04N19/63
摘要： An image data compression apparatus includes: a filter coefficient calculation unit to perform a filter process to separate pixels extracted in accordance with a one-dimensional subband coding into low- and high-frequency components, and to calculate coefficient values of respective filter coefficients; prediction units to perform different predictions respectively for the calculated coefficient values; a predicted coefficient value calculation unit to calculate predicted coefficient values to be used for posterior predictions by calculating each from at least one of predicted values and from corresponding at least one of the calculated coefficient values; a memory unit to hold the predicted coefficient values calculated by the predicted coefficient value calculation unit; and a compression coding unit to calculate a difference between each predicted value and corresponding each coefficient value, and to perform coding after quantizing the difference, or to perform coding on the basis of the difference.
摘要翻译：图像数据压缩装置包括：滤波器系数计算单元，用于执行滤波处理，以将根据一维子带编码提取的像素分离成低频和高频分量，并计算各滤波器系数的系数值; 预测单元对所计算的系数值分别执行不同的预测; 预测系数值计算单元，通过从预测值中的至少一个和相应的所计算的系数值中的至少一个计算每一个来计算用于后验预测的预测系数值; 存储单元，用于保持由预测系数值计算单元计算出的预测系数值; 以及压缩编码单元，用于计算每个预测值和对应的每个系数值之间的差，并且在量化该差之后执行编码，或者基于该差进行编码。

8. 发明申请

US20100195724A1 VIDEO COMPRESSION ENCODING/DECOMPRESSION DEVICE, VIDEO COMPRESSION ENCODING/DECOMPRESSION PROGRAM AND VIDEO GENERATION/OUTPUT DEVICE 失效
标题翻译：视频压缩编码/解码设备，视频压缩编码/解码程序和视频生成/输出设备
公开(公告)号：US20100195724A1
公开(公告)日：2010-08-05
申请号：US12759509
申请日：2010-04-13
申请人： Shigeru Yoshida , Junichi Odagiri
发明人： Shigeru Yoshida , Junichi Odagiri
IPC分类号： H04N7/12 , H04N5/93
CPC分类号： H04N19/507 , H04N19/85
摘要： When a periodic pattern is not included in image data 210, a prediction error encoding unit 204 outputs the variable-length code of a prediction error quantization value 214 generated by prediction encoding as compressed data 215. When the periodic pattern is included in the image data 210, a periodic pattern encoding unit 208 outputs only information about the periodic pattern as the compressed data 215, while the output of the prediction error encoding unit is stopped. On the decompression side, while the copy instruction of a pixel value before one cycle from the compressed data is not detected, the decompression operation in a normal prediction encoding system is executed. When the instruction is detected, the pixel value one cycle before, internally stored is copied and outputted.
摘要翻译：当图像数据210中不包括周期性图案时，预测误差编码单元204将通过预测编码生成的预测误差量化值214的可变长度码输出为压缩数据215.当周期性图案包括在图像数据中时如图210所示，周期性图案编码单元208仅输出关于周期性图案的信息作为压缩数据215，同时预测误差编码单元的输出停止。在解压缩侧，当没有检测到来自压缩数据的一个周期之前的像素值的复制指令时，执行正常预测编码系统中的解压缩操作。当检测到指令时，复制并输出内部存储的一个周期的像素值。

9. 发明申请

US20080098299A1 Document conversion and use system 有权
标题翻译：文件转换和使用系统
公开(公告)号：US20080098299A1
公开(公告)日：2008-04-24
申请号：US11905312
申请日：2007-09-28
申请人： Junichi Odagiri , Satoshi Nakashima , Shigeru Yoshida , Takuroh Yamaguchi
发明人： Junichi Odagiri , Satoshi Nakashima , Shigeru Yoshida , Takuroh Yamaguchi
IPC分类号： G06F17/00
CPC分类号： G06F17/227 , G06F17/2247
摘要： A document conversion and use system which converts a first structured document into a second structured document different in structure from the first structured document, comprising: a template storage unit storing a template indicating the structure of the second structured document; a structure specification unit for reading out the template from the template storage unit and causing a user to specify an element or an element content constituting the template; a correspondence definition specification unit for causing the user to define the correspondence definition specification indicating the correspondence between the element in the first structured document and the element in the template; and an unit for analyzing the template structure to specify the element or the element content specified by the structure specification unit, searching for the element defined by the correspondence definition starting from the element or the element content, and performing conversion processing according to the search result.
摘要翻译：一种文档转换和使用系统，其将第一结构化文档转换成与第一结构化文档不同结构的第二结构化文档，包括：模板存储单元，存储指示第二结构化文档的结构的模板; 结构指定单元，用于从模板存储单元读出模板并使用户指定构成模板的元素或元素内容; 通信定义指定单元，用于使用户定义指示第一结构化文档中的元素与模板中的元素之间的对应关系的对应定义规范; 以及用于分析模板结构以指定由结构指定单元指定的元素或元素内容的单元，从元素或元素内容开始搜索由对应定义定义的元素，并且根据搜索结果执行转换处理。

10. 发明申请

US20080091699A1 Method of converting structured data 审中-公开
标题翻译：转换结构化数据的方法
公开(公告)号：US20080091699A1
公开(公告)日：2008-04-17
申请号：US11905304
申请日：2007-09-28
申请人： Satoshi Nakashima , Junichi Odagiri , Shigeru Yoshida , Takuroh Yamaguchi
发明人： Satoshi Nakashima , Junichi Odagiri , Shigeru Yoshida , Takuroh Yamaguchi
IPC分类号： G06F17/30
CPC分类号： G06F17/227 , G06F17/2247
摘要： A structured data conversion device is designed to convert a set of first structured data into a set of second structured data that is described in a language different from that of the first structured data, and comprises: an inverse conversion information creation unit extracting data as inverse conversion information from the first structured data, the data that is extracted being deleted when the first structured data is converted into the second structured data and being necessary when the second structured data is inversely converted into the first structured data; and an inverse conversion information storing unit embedding in the second structured data the inverse conversion information when the first structured data is converted into the second structured data.
摘要翻译：结构化数据转换装置被设计成将一组第一结构化数据转换成以与第一结构化数据不同的语言描述的一组第二结构化数据，并且包括：反转换信息创建单元，将数据提取为反向来自第一结构化数据的转换信息，当第一结构化数据被转换成第二结构化数据时被提取的数据被删除，并且当第二结构化数据被反向转换成第一结构化数据时是需要的; 以及逆变换信息存储单元，当所述第一结构化数据被转换为所述第二结构化数据时，将所述第二结构化数据嵌入所述逆变换信息。

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