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    • 21. 发明授权
    • Image compression decoding apparatus and method thereof
    • 图像压缩解码装置及其方法
    • US06993181B2
    • 2006-01-31
    • US09955312
    • 2001-09-19
    • Sunao TabataNaofumi Yamamoto
    • Sunao TabataNaofumi Yamamoto
    • G06K9/00
    • G06T9/00
    • An image compression and decompression apparatus includes a identification section, a conversion section, a characteristics correction section, an image compression section, and a decompression section. The identification section identifies given color image information and outputs an identification signal. The conversion section converts color image information to block-based color image information having a specified length. The characteristics correction section corrects block-based color image information with respect to characteristics thereof in units of the blocks based on an identification signal output from the identification section. The image compression section compresses a corrected image in units of blocks and stores the compressed image in a storage area. The decompression section decompresses a compressed image in units of blocks.
    • 图像压缩和解压缩装置包括识别部分,转换部分,特征校正部分,图像压缩部分和解压缩部分。 识别部分识别给定的彩色图像信息并输出识别信号。 转换部分将彩色图像信息转换为具有指定长度的基于块的彩色图像信息。 特征校正部分基于从识别部分输出的识别信号,以块为单位相对于其特征校正基于块的彩色图像信息。 图像压缩部以块为单位压缩校正图像,并将压缩图像存储在存储区域中。 解压缩部分以块为单位解压缩压缩图像。
    • 22. 发明授权
    • System and method for coding and/or decoding image including bit-map of
different levels
    • 用于编码和/或解码图像的系统和方法,包括不同级别的位图
    • US6154569A
    • 2000-11-28
    • US616722
    • 1996-03-15
    • Eiichi SakaueSunao TabataNaofumi YamamotoHidekazu Sekizawa
    • Eiichi SakaueSunao TabataNaofumi YamamotoHidekazu Sekizawa
    • G06T9/00G06K9/36
    • G06T9/00
    • A coding and/or decoding system for an image including bit-sops of different levels, is provided in an image recoding system which recodes bit-map data including small-level bit-map data and multilevel bit-map data in an image memory and which read the bit-map data out of the image memory to recode an image. In this coding and/or decoding system, after small-level bit-map data and multilevel bit-map data are divided into blocks, each of which is composed of a plurality of picture elements, the divided small-level bit-map data and the divided multilevel bit-map data are inputted to small-level bit-map data coding section and multilevel bit-map data coding section, respectively. The small-level bit-map data are transformed into codes representative of the number of black or white and half-tone picture elements in the block, and the multilevel bit-map data are transformed into codes representative of the average value or the total in the block. These data are assigned to different codes of digital data written in the image memory, respectively, so as to provide an image recoding system which can effectively reduce the capacity of a page memory for storing an image information and which can recode an image including small-level and multilevel.
    • 在图像记录系统中提供了包括不同级别的位的图像的图像的编码和/或解码系统,其将包括图像存储器中的小级位图数据和多级位图数据的位图数据重新编码, 其读取图像存储器中的位图数据以重新编码图像。 在该编码和/或解码系统中,在小电平位图数据和多电平位图映射数据被划分成块之后,每个块由多个像素组成,分割的小电平位图数据和 分割的多电平位图数据分别输入到小电平位图数据编码部分和多电平位图数据编码部分。 小电平位图数据被变换成代表块中的黑色或白色和半色调像素的数量的代码,并且多级位图数据被转换成代表平均值或总数的代码 块。 这些数据分别被分配给写入图像存储器中的不同的数字数据代码,以便提供一种图像记录系统,其可以有效地降低用于存储图像信息的页面存储器的容量,并且可以重新编码包括小图像的图像, 水平和多层次。
    • 25. 发明申请
    • FORMAT PROCESSING APPARATUS FOR DOCUMENT IMAGE AND FORMAT PROCESSING METHOD FOR THE SAME
    • 用于文件图像和格式处理方法的格式处理装置
    • US20090202151A1
    • 2009-08-13
    • US12030355
    • 2008-02-13
    • Sunao Tabata
    • Sunao Tabata
    • G06K9/34G06K9/00
    • H04N1/41
    • An image processing apparatus of an embodiment of the invention includes a character region characteristic determination unit to identify a character region of an image and to output a character region characteristic determination signal, a character region image separation unit to separate, based on the character region characteristic determination signal, the image into at least two attribute regions, that is, plural character region images and an other region image, and a separated image processing unit to process each of the plural character region images and the other region image, and in at least the separated image processing unit, according to a characteristic of each of the plural character region images, at least one process of a compression method, a compression ratio, a resolution, and a multi-value number for at least one of the character region images is different from a process of the other region image or the other character region image.
    • 本发明实施例的图像处理装置包括字符区域特性确定单元,用于识别图像的字符区域并输出字符区域特性确定信号;字符区域图像分离单元,用于基于字符区域特征 确定信号,将图像分成至少两个属性区域,即多个字符区域图像和另一个区域图像,以及分离图像处理单元,用于处理多个字符区域图像和其他区域图像中的每一个,并且至少在 所述分离图像处理单元根据所述多个字符区域图像中的每一个的特征,对于所述字符区域图像中的至少一个的压缩方法,压缩比,分辨率和多值数量的至少一个处理 与其他区域图像或其他字符区域图像的处理不同。
    • 27. 发明申请
    • Image data decoding apparatus and method
    • 图像数据解码装置及方法
    • US20070058875A1
    • 2007-03-15
    • US11226417
    • 2005-09-15
    • Sunao TabataNobuhiko Nakahara
    • Sunao TabataNobuhiko Nakahara
    • G06K9/36
    • H04N1/41H04N19/124H04N19/136H04N19/184H04N19/33H04N19/42H04N19/59H04N19/60
    • An image data decoding apparatus decoded synthesized-compressed data in which image data with a plurality of resolutions is compressed in block units by different compression systems, respectively, and each compressed data is synthesized to a single piece of compressed data. The image data decoding apparatus comprises a separating section 1005-1 for separating the synthesized-compressed data to compressed data with every resolution, decoding sections 1005-2, 1005-3 for decoding separated and compressed data with a first resolution to obtain first high-resolution data and also decoding compressed data with a second resolution obtained from the separating section to obtain first low-resolution data, a conversion section 1005-4 for converting the first low-resolution data into second high-resolution data, and an image synthesis section 1005-5 for synthesizing the first and the second high-resolution data to obtain a decoded image signal.
    • 一种解码合成压缩数据的图像数据解码装置,其中分别通过不同的压缩系统以块为单位压缩具有多个分辨率的图像数据,并将每个压缩数据合成为单个压缩数据。 图像数据解码装置包括用于将合成压缩数据分解为每个分辨率的压缩数据的分离部分1005-1,用于以第一分辨率解码分离和压缩数据的解码部分1005-2,1005-3, 分辨率数据,并且还利用从分离部分获得的第二分辨率解码压缩数据以获得第一低分辨率数据;转换部分1005-4,用于将第一低分辨率数据转换成第二高分辨率数据;以及图像合成部分 1005-5,用于合成第一和第二高分辨率数据以获得解码图像信号。
    • 29. 发明申请
    • Image processing apparatus
    • 图像处理装置
    • US20060209350A1
    • 2006-09-21
    • US11081938
    • 2005-03-17
    • Sunao Tabata
    • Sunao Tabata
    • G06K9/00
    • H04N1/00846H04N1/00005H04N1/00037H04N1/0005H04N1/393
    • An image processing apparatus includes a scanner that relatively moves an image on an original in a sub-scan direction, and reads the image, a main-scan magnification varying section that varies a magnification of image data, which is read by the scanner, in a main-scan direction, a sub-scan magnification varying section that varies a magnification of image data, which is read by the scanner, in the sub-scan direction, a watermark detection section that detects watermark information from the image data that is read by the scanner, and a control circuit that issues an instruction to the scanner, the main-scan magnification varying section and the sub-scan magnification varying section in accordance with a desired magnification ratio.
    • 一种图像处理装置包括:扫描仪,其以副扫描方向相对移动原稿上的图像,并读取图像;主扫描倍率变化部,其将由扫描仪读取的图像数据的放大率变化; 主扫描方向,副扫描倍率变化部,其在副扫描方向上改变由扫描仪读取的图像数据的放大倍数,水印检测部,从读取的图像数据检测水印信息; 以及根据期望的放大率向扫描仪,主扫描倍率变化部分和副扫描倍率变化部分发出指令的控制电路。