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    • 4. 发明授权
    • Image processing system which converts multi-value image data into
binary image data
    • 将多值图像数据转换为二进制图像数据的图像处理系统
    • US6055336A
    • 2000-04-25
    • US751755
    • 1996-11-18
    • Toru Niki
    • Toru Niki
    • G06K9/20G06K9/38H04N1/403H04N1/41H04N1/411G06K9/36
    • G06K9/00456G06K9/38H04N1/403H04N1/41H04N1/4115G06K2209/01
    • An optical character recognition system recognizes character images in a document image comprised of character areas and non-character areas. The system includes a step of obtaining multi-value image data representing the document image, the multi-value image data having a first resolution and comprising plural pixels each having a pixel density value. The system binarizes the multi-value image data to produce binary image data having a second resolution for the document image, the second resolution being greater than the first resolution. The target pixel in the multi-value image data is binarized based on pixels adjacent to the target pixel. The system further includes steps for performing block selection on the binary image data for the document image in order to identify character areas of the document image and non-character areas of the document image, and performing optical character recognition processing on binary image data for the character areas of the document image to obtain computer codes for recognized character images in the character areas.
    • 光学字符识别系统识别由字符区域和非字符区域组成的文档图像中的字符图像。 该系统包括获得表示文档图像的多值图像数据的步骤,该多值图像数据具有第一分辨率并且包括多个具有像素密度值的像素。 该系统对多值图像数据进行二值化以产生具有用于该文件图像的第二分辨率的二值图像数据,该第二分辨率大于该第一分辨率。 基于与目标像素相邻的像素,多值图像数据中的目标像素被二值化。 该系统还包括用于对文档图像的二进制图像数据执行块选择以识别文档图像的文字图像和文档图像的非字符区域的字符区域的步骤,以及对二进制图像数据执行光学字符识别处理 文字图像的字符区域,以获得字符区域中识别的字符图像的计算机代码。
    • 5. 发明授权
    • Generator for document with HTML tagged table having data elements which
preserve layout relationships of information in bitmap image of
original document
    • 具有HTML标签表的文档的生成器,其具有保留原始文档的位图图像中的信息的布局关系的数据元素
    • US5893127A
    • 1999-04-06
    • US751676
    • 1996-11-18
    • Ching-Yu TyanHung Khei HuangToru Niki
    • Ching-Yu TyanHung Khei HuangToru Niki
    • G06F12/00G06F17/21G06F17/30G06K9/20G06F17/00
    • G06K9/00442G06F17/3089
    • Automatic generation of hypertext markup language (HTML) files based on bitmap image data, which faithfully preserves layout information of an original document from which the bitmap data was obtained. Generally, multi-column document layouts result in automatic generation of HTML files that use HTML "table tags" to display each of the different columns. More particularly, a bitmap image is obtained such as by scanning or retrieval of a pre-existing image, and the bitmap image is segmented into blocks. The location of each block is determined, each block is analyzed in preparation for insertion of appropriate data into an HTML file, and layout analysis is performed to identify layout relationships between the blocks based on the relative locations of the blocks in the bitmap image. Based on the layout relationships, a block type is determined for each block, column span and row span data for each block is determined, blocks are re-ordered if needed, and an HTML file is generated in which blocks are tagged as data elements in a row of an HTML "table tag" based on block type and based on column and row span information for the block.
    • 基于位图图像数据自动生成超文本标记语言(HTML)文件,其忠实地保留获得位图数据的原始文档的布局信息。 通常,多列文档布局导致HTML文件的自动生成,它们使用HTML“表标签”来显示每个不同的列。 更具体地,获得位图图像,例如通过扫描或检索预先存在的图像,并且将位图图像分割成块。 确定每个块的位置,分析每个块以准备将适当数据插入到HTML文件中,并且基于位图图像中的块的相对位置来执行布局分析以识别块之间的布局关系。 基于布局关系,确定每个块的块类型,确定每个块的列跨度和行范围数据,如果需要,重新排序块,并生成HTML文件,其中块被标记为数据元素 基于块类型的一行HTML“表标签”,并且基于块的列和行范围信息。
    • 8. 发明授权
    • Image processing for pattern extraction
    • 图案提取的图像处理
    • US5335294A
    • 1994-08-02
    • US915306
    • 1992-07-20
    • Toru Niki
    • Toru Niki
    • G06K9/36G06K9/20G06K9/48
    • G06K9/48G06K9/2054G06K2209/01
    • There are provided an image processing method and apparatus which can correctly extract desired image information from input image information and can recognize the extracted partial image information. An outline of a character or the like is traced by using an arbitrary point in the input image information as a start point. The start point is moved when the outline reaches the edge of the input image. The outline is again traced from the moved start point. The outline tracing and the movement of the start point are repeated until the character can be extracted by the outline tracing. When the number of times the start point has been moved exceeds a predetermined value, the input image information is inverted.
    • 提供了可以从输入图像信息中正确地提取期望的图像信息并且可以识别所提取的部分图像信息的图像处理方法和装置。 通过使用输入图像信息中的任意点作为起始点来跟踪字符等的轮廓。 当轮廓到达输入图像的边缘时,起点被移动。 轮廓从移动的起点再次跟踪。 重复轮廓跟踪和起始点的移动,直到通过轮廓跟踪提取角色。 当起点被移动的次数超过预定值时,输入图像信息被反转。
    • 9. 发明授权
    • Page analysis system
    • 页面分析系统
    • US06512848B2
    • 2003-01-28
    • US08751677
    • 1996-11-18
    • Shin-Ywan WangToru Niki
    • Shin-Ywan WangToru Niki
    • G06K934
    • G06K9/00456
    • A method for increasing the accuracy of image data classification in a page analysis system for analyzing image data of a document page. The method includes inputting image data of a document page as pixel data, analyzing the pixel data in order to locate all connected pixels, rectangularizing connected pixel data into blocks, analyzing each of the blocks of pixel data in order to determine the type of image data contained in the block, outputting an attribute corresponding to the type of image data determined in the analyzing step, and performing optical character recognition to attempt to recognize a character of the block of image data in the case that the analyzing step cannot determine the type of image data contained in the block.
    • 一种用于在用于分析文档页面的图像数据的页面分析系统中提高图像数据分类的精度的方法。 该方法包括输入文档页面的图像数据作为像素数据,分析像素数据以定位所有连接的像素,将连接的像素数据矩形化为块,分析像素数据块中的每一个以确定图像数据的类型 输出与分析步骤中确定的图像数据的类型对应的属性,并且在分析步骤不能确定图像数据的类型的情况下,执行光学字符识别以尝试识别图像数据块的字符 包含在块中的图像数据。