公开(公告)号：US07158669B2

公开(公告)日：2007-01-02

申请号：US10417102

申请日：2003-04-17

申请人： Tetsuomi Tanaka ,  Takeshi Yamazaki

发明人： Tetsuomi Tanaka ,  Takeshi Yamazaki

IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K9/36 ,  H04N1/46

CPC分类号： H04N1/41 ,  H04N1/642 ,  H04N1/644

摘要： There are provided an image coding method and apparatus and image compression method and apparatus which can properly compress a color document image with a high compression efficiency. First of all, a color reduction processing unit (102) converts each pixel of a color document image into an index assigned in correspondence with a color value, and generates color information (103) containing the number of pixels for each indexed color and an index color image (104). A color information sort unit (105) and the like determine, for example, a color value corresponding to an index of the maximum number of pixels as a background color. An order determination unit (113) determines an order. A binary image generation compression unit (109) generates a partial binary image for each index and compresses the binary image according to the order. A data integrating unit (111) generates compressed image (112) by integrating background data (108) and the compressed data of the partial binary image.

摘要翻译： 提供了可以以高压缩效率适当地压缩彩色文档图像的图像编码方法和装置以及图像压缩方法和装置。 首先，颜色缩小处理单元（102）将彩色文档图像的每个像素转换为与颜色值对应地分配的索引，并且生成包含每个索引颜色的像素数目和索引的颜色信息（103） 彩色图像（104）。 颜色信息分类单元（105）等确定例如与作为背景颜色的最大像素数的索引对应的颜色值。 订单确定单元（113）确定订单。 二进制图像生成压缩单元（109）针对每个索引生成部分二进制图像，并根据顺序压缩二进制图像。 数据整合单元（111）通过对背景数据（108）和部分二进制图像的压缩数据进行积分来生成压缩图像（112）。

公开(公告)号：US06356657B1

公开(公告)日：2002-03-12

申请号：US08493614

申请日：1995-06-22

申请人： Makoto Takaoka ,  Shugoro Ueno ,  Tetsuomi Tanaka ,  Shigeo Fukuoka

发明人： Makoto Takaoka ,  Shugoro Ueno ,  Tetsuomi Tanaka ,  Shigeo Fukuoka

IPC分类号： G06K948

CPC分类号： G06T7/60 ,  G06K9/00463 ,  G06T7/12 ,  G06T7/181 ,  G06T7/194 ,  G06T2207/20092

摘要： An image block is detected by raster scanning an input image and chasing surrounding black pixels around a detected black pixel as the start point in sequence. Further, by judging the feature of the detected image block, the attribute of the image block can be judged. Also, by comparing the detected image block with a predetermined window, it is possible to determine whether or not the image block is noise, whereby image processing of higher accuracy can be effected.

摘要翻译： 通过对输入图像进行光栅扫描来检测图像块，并且将检测到的黑色像素周围的围绕的黑色像素依次追踪作为开始点。 此外，通过判断检测到的图像块的特征，可以判断图像块的属性。 此外，通过将检测到的图像块与预定窗口进行比较，可以确定图像块是否是噪声，从而可以实现更高精度的图像处理。

公开(公告)号：US5966138A

公开(公告)日：1999-10-12

申请号：US635586

申请日：1996-04-22

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06T3/60 ,  G06T3/00

CPC分类号： G06T3/602

摘要： When an image is to be rotated, the image is divided into blocks each having a predetermined size, and rotation of the image is realized by rotation of the respective blocks and rotation in units of blocks over the entire image. In this case, lines included in each block are moved to a predetermined region so that the lines are continuous in the order of lines. In the region in which the lines are moved as described above, predetermined digit positions in the respective lines appear at intervals of pixels for one line irrespective of the digit positions. After the respective digits are set to have a predetermined positional relationship between lines, since a logic operation is simultaneously performed for a plurality of lines, a plurality of pixels can be simultaneously moved to have a positional relationship after rotation. Also, a plurality of sets of pixels having the positional relationship after rotation can be similarly, simultaneously moved.

摘要翻译： 当要旋转图像时，图像被划分为具有预定尺寸的块，并且通过各块的旋转和在整个图像上以块为单位的旋转来实现图像的旋转。 在这种情况下，包括在每个块中的线被移动到预定区域，使得线以线的顺序连续。 在如上所述移动线的区域中，不管数字位置如何，各行中的预定数字位置以一行的像素间隔出现。 在各个数字被设定为具有行之间的预定的位置关系之后，由于同时执行多行的逻辑运算，所以可以同时移动多个像素以具有旋转后的位置关系。 此外，可以同样地移动具有旋转之后的位置关系的多组像素。

公开(公告)号：US5563964A

公开(公告)日：1996-10-08

申请号：US387616

申请日：1995-02-13

申请人： Tetsuomi Tanaka ,  Masayuki Kiriyama

发明人： Tetsuomi Tanaka ,  Masayuki Kiriyama

IPC分类号： G06K9/20 ,  G06K9/36

CPC分类号： G06K9/2054 ,  G06K2209/01

摘要： An image processing method and apparatus for processing a designated area of an image includes storing image data, designating one or more rectangular areas in the image data, and storing data representative of the position of the designated rectangular areas. Once completion of designating of rectangular areas is detected, recognition of image data in the designated rectangular areas is commenced.

摘要翻译： 用于处理图像的指定区域的图像处理方法和装置包括存储图像数据，指定图像数据中的一个或多个矩形区域，以及存储表示指定矩形区域的位置的数据。 一旦检测到矩形区域的指定，就开始识别指定矩形区域中的图像数据。

公开(公告)号：US08515186B2

公开(公告)日：2013-08-20

申请号：US11611722

申请日：2006-12-15

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06K9/36

CPC分类号： H04N1/642 ,  H04N19/12 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30

摘要： An image processing apparatus according to the present invention has a determining unit for determining a size of an image, a resolution-setting unit for setting a resolution based on the size of the image, and a recognizing unit for recognizing whether text is included in the image having the determined resolution. Therefore a text portion in the image can be recognized efficiently.

摘要翻译： 根据本发明的图像处理装置具有用于确定图像的尺寸的确定单元，用于基于图像的尺寸设置分辨率的分辨率设置单元，以及用于识别文本是否包括在内的识别单元 图像具有确定的分辨率。 因此，可以有效地识别图像中的文本部分。

公开(公告)号：US08077986B2

公开(公告)日：2011-12-13

申请号：US11757496

申请日：2007-06-04

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06K9/36

CPC分类号： G06K9/38 ,  G06K2209/01 ,  H04N1/411 ,  H04N1/642 ,  H04N19/60 ,  H04N19/90

摘要： A multivalued original image is converted to a high-resolution image by interpolation processing and the resultant high-resolution image is subjected to binarization processing to obtain a high-resolution binarized image. This is followed by extraction of a plurality of text regions for every text color, as well as position information and text color information of each text region. First compressed data of the text regions is generated by applying compression processing to the high-resolution binarized images at the positions corresponding to the text regions extracted. Second compressed data is generated by filling text regions in the original image with a prescribed pixel value and applying compression processing to the image obtained by such filling. Compressed image data of the original image is then generated, this data including the first compressed data and the second compressed data as well as the position information and color information of each text region.

摘要翻译： 通过插值处理将多值原始图像转换为高分辨率图像，并对所得到的高分辨率图像进行二值化处理，以获得高分辨率二值化图像。 随后为每个文本颜色提取多个文本区域，以及每个文本区域的位置信息和文本颜色信息。 通过对与提取的文本区域相对应的位置对高分辨率二值化图像应用压缩处理来生成文本区域的第一压缩数据。 通过以规定的像素值填充原始图像中的文本区域并对通过填充获得的图像应用压缩处理来生成第二压缩数据。 然后生成原始图像的压缩图像数据，该数据包括第一压缩数据和第二压缩数据以及每个文本区域的位置信息和颜色信息。

公开(公告)号：US07853866B2

公开(公告)日：2010-12-14

申请号：US11452176

申请日：2006-06-13

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06F17/00 ,  G06F17/21

CPC分类号： G06K9/00469

摘要： An apparatus for document conversion that are capable of facilitating conversion of document image data to an electronic document having table of contents data even with a limited storage resource. The document image analysis section 302 extracts character regions from a document image 301. The contents/index/footer conversion section 307 generates table of contents data based on the extracted character regions and page numbers of the character regions. An electronic document having a table of contents is generated based on the document image 301 and the generated table of contents data. Link information is added to respective ones of items in the generated table of contents data for linking the items in the generated table of contents data with corresponding positions in the electronic document in which the items are described.

摘要翻译： 一种用于文档转换的装置，即使在有限的存储资源的情况下，也能够将文档图像数据转换成具有内容数据表的电子文档。 文件图像分析部分302从文档图像301中提取字符区域。内容/索引/页脚转换部分307基于提取的字符区域和字符区域的页码来生成目录数据。 基于文档图像301和生成的目录数据生成具有内容表的电子文档。 链接信息被添加到所生成的内容数据表中的各个项目中，用于将所生成的内容数据表中的项目与在其中描述项目的电子文档中的相应位置相链接。

公开(公告)号：US07437002B2

公开(公告)日：2008-10-14

申请号：US10923806

申请日：2004-08-24

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06K9/34

CPC分类号： G06K9/38 ,  G06K2209/01

摘要： An image processing apparatus processes an input image, in which an edge image is created by executing an extracting operation on the input image, and a binary image is created by performing a thresholding operation on the input image. A first partial thresholding unit creates an output binary image by extracting a character area from the input image, which corresponds to a character area identified from the created edge image, and performs a thresholding operation on the extracted character area. A second partial thresholding unit creates an output binary image by extracting a character area from the input image, which corresponds to a character area identified from the created binary image, and performs a thresholding operation on the extracted character area. An output unit outputs the output binary image created by said first partial thresholding unit and the output binary image created by said second partial thresholding unit to a memory, wherein the first partial thresholding unit determines whether a character in the extracted character area is a reversed character, and if it is determined that the character is a reversed character, creates an output binary image by reversing and performing the thresholding operation on the character area.

摘要翻译： 图像处理装置通过对输入图像执行提取操作来处理其中创建边缘图像的输入图像，并且通过对输入图像执行阈值处理来创建二值图像。 第一部分阈值单元通过从输入图像提取字符区域来创建输出二进制图像，该字符区域对应于从所创建的边缘图像识别的字符区域，并对所提取的字符区域执行阈值操作。 第二部分阈值单元通过从输入图像中提取字符区域来创建输出二进制图像，所述字符区域对应于从所创建的二进制图像识别的字符区域，并且对所提取的字符区域执行阈值操作。 输出单元将由所述第一部分阈值单元创建的输出二进制图像和由所述第二部分阈值单元创建的输出二进制图像输出到存储器，其中，第一部分阈值单元确定提取的字符区域中的字符是否是反转字符 ，如果确定字符是反转字符，则通过在字符区域上反转并执行阈值操作来创建输出二进制图像。

公开(公告)号：US20080019613A1

公开(公告)日：2008-01-24

申请号：US11757496

申请日：2007-06-04

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06K9/54 ,  G06K9/34

CPC分类号： G06K9/38 ,  G06K2209/01 ,  H04N1/411 ,  H04N1/642 ,  H04N19/60 ,  H04N19/90

摘要： A multivalued original image is converted to a high-resolution image by interpolation processing and the resultant high-resolution image is subjected to binarization processing to obtain a high-resolution binarized image. This is followed by extraction of a plurality of text regions for every text color, as well as position information and text color information of each text region. First compressed data of the text regions is generated by applying compression processing to the high-resolution binarized images at the positions corresponding to the text regions extracted. Second compressed data is generated by filling text regions in the original image with a prescribed pixel value and applying compression processing to the image obtained by such filling. Compressed image data of the original image is then generated, this data including the first compressed data and the second compressed data as well as the position information and color information of each text region.

摘要翻译： 通过插值处理将多值原始图像转换为高分辨率图像，并对所得到的高分辨率图像进行二值化处理，以获得高分辨率二值化图像。 随后为每个文本颜色提取多个文本区域，以及每个文本区域的位置信息和文本颜色信息。 通过对与提取的文本区域相对应的位置对高分辨率二值化图像应用压缩处理来生成文本区域的第一压缩数据。 通过以规定的像素值填充原始图像中的文本区域并对通过填充获得的图像应用压缩处理来生成第二压缩数据。 然后生成原始图像的压缩图像数据，该数据包括第一压缩数据和第二压缩数据以及每个文本区域的位置信息和颜色信息。

公开(公告)号：US20070147689A1

公开(公告)日：2007-06-28

申请号：US11611722

申请日：2006-12-15

申请人： Tetsuomi Tanaka

发明人： Tetsuomi Tanaka

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N1/642 ,  H04N19/12 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30

摘要： An image processing apparatus according to the present invention has a determining unit for determining a size of an image, a resolution-setting unit for setting a resolution based on the size of the image, and a recognizing unit for recognizing whether text is included in the image having the determined resolution. Therefore a text portion in the image can be recognized efficiently.

摘要翻译： 根据本发明的图像处理装置具有用于确定图像的尺寸的确定单元，用于基于图像的尺寸设置分辨率的分辨率设置单元，以及用于识别文本是否包括在内的识别单元 图像具有确定的分辨率。 因此，可以有效地识别图像中的文本部分。