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    • 31. 发明授权
    • Image processing apparatus, method, and processing program for image inversion with tree structure
    • 用于具有树结构的图像反转的图像处理装置,方法和处理程序
    • US08155445B2
    • 2012-04-10
    • US11861020
    • 2007-09-25
    • Tomotoshi Kanatsu
    • Tomotoshi Kanatsu
    • G06K9/34G06K1/00
    • G06K9/00463
    • The present invention relates to an image processing method, an image processing apparatus and an image processing program for dealing with inverted characters (outlined characters) constituted by white pixels on a black ground in a tree structure same as that of normal characters constituted by black pixels on a white ground.In the present invention, black pixel blocks and white pixel blocks are sampled recursively from a binary image, tree structure data indicating a positional relation between the sampled black pixel blocks and white pixel blocks is created, an inverted image is created by white-black-inverting the insides of black pixel blocks that can include inverted characters, of black pixel blocks included in the tree structure data, white pixel blocks and black pixel blacks are sampled from the created inverted image, and data regarding the sampled white pixel blocks and black pixel blocs is added to corresponding nodes of the tree structure data.
    • 本发明涉及一种图像处理方法,图像处理装置和图像处理程序,用于处理与由黑色像素构成的正常字符相同的树结构中的由黑色地面上的白色像素构成的倒置字符(轮廓字符) 在白色的地面上 在本发明中,黑色像素块和白色像素块从二进制图像递归地采样,产生指示采样的黑色像素块和白色像素块之间的位置关系的树结构数据,通过白黑 - 将包括在树结构数据中的黑色像素块的包括反转字符的黑色像素块的内部反转,从所创建的反转图像中采样白色像素块和黑色像素黑色,以及关于采样的白色像素块和黑色像素的数据 将块添加到树结构数据的相应节点。
    • 34. 发明授权
    • Image processing apparatus and method
    • 图像处理装置及方法
    • US06381368B1
    • 2002-04-30
    • US09203511
    • 1998-12-01
    • Tomotoshi Kanatsu
    • Tomotoshi Kanatsu
    • G06K936
    • G06K9/00463G06T9/00H04N1/41
    • When a region obtained by predetermined region division processing is a character image, the image is converted at one of predetermined compression ratios (S505). Data in a certain information amount that the region has as pixel data after image conversion is subjected to character recognition, and the degree of similarity (score) to character types registered in advance is calculated (S506). If the calculated score is equal to or smaller than a predetermined threshold value, the information amount is smaller than a minimum information amount necessary for reconstruction of the character image contained in the region. The character image is converted at a compression ratio lower than that in S505 by one step (S507-S509).
    • 当通过预定区域分割处理获得的区域是字符图像时,以预定压缩比之一转换图像(S505)。 对图像转换后的区域作为像素数据的某一信息量的数据进行字符识别,并且计算预先登记的字符类型的相似度(分数)(S506)。 如果计算出的分数等于或小于预定阈值,则信息量小于重构包含在该区域中的字符图像所需的最小信息量。 将字符图像以比S505低的压缩率进行转换(S507〜S509)。
    • 35. 发明授权
    • Image processing apparatus, image processing method, and computer program
    • 图像处理装置,图像处理方法和计算机程序
    • US08077971B2
    • 2011-12-13
    • US12439994
    • 2008-06-23
    • Makoto EnomotoTomotoshi KanatsuKitahiro Kaneda
    • Makoto EnomotoTomotoshi KanatsuKitahiro Kaneda
    • G06K9/00
    • G06F17/2205G06K9/00442
    • This invention generates a digital document by applying character recognition to character images in a document image, and rendering the character recognition result on the document image in a transparent color. This digital document allows to specify a part corresponding to a search keyword on the document image upon conducting a search. When this digital document is generated, it includes a description required to use glyph data (font data) of a simple character shape commonly to a plurality of character types as font data used upon rendering the character recognition result. Therefore, even when the digital document needs to save font data, an increase in file size can be minimized. Also, by rendering using a simple character shape, the data size of the font data itself can be reduced.
    • 本发明通过对文档图像中的字符图像应用字符识别并以文字图像将文字识别结果呈现为透明颜色来生成数字文档。 该数字文档允许在进行搜索时在文档图像上指定与搜索关键词对应的部分。 当生成该数字文档时,它包括将字符数据(字体数据)简单字符形状通常用作多个字符类型所需的描述,作为在呈现字符识别结果时使用的字体数据。 因此,即使数字文档需要保存字体数据,文件大小也可以最小化。 此外,通过使用简单的字符形状进行渲染,可以减少字体数据本身的数据大小。
    • 40. 发明授权
    • Form search apparatus and method
    • 表单搜索装置和方法
    • US07519226B2
    • 2009-04-14
    • US11127188
    • 2005-05-12
    • Kitahiro KanedaKen-ichi KazumiTomotoshi Kanatsu
    • Kitahiro KanedaKen-ichi KazumiTomotoshi Kanatsu
    • G06K9/62
    • G06K9/00463
    • Forms such as business forms used in banks and post offices are automatically classified using a form search apparatus and method. The method of classifying forms comprises extracting features from the image data of the input form and comparing the extracted features with stored features of a set of template forms corresponding to a set of known classifications of forms. The comparing step compares extracted features which comprise attributes of tables contained in the template forms and the input form respectively. The attributes of tables may be the number of tables in the form, or the number of cells comprising the tables. An approximate matching step is used to reduce the number of candidate template forms.
    • 银行和邮局中使用的业务表格等表格可以使用表单搜索设备和方法进行自动分类。 分类形式的方法包括从输入形式的图像数据中提取特征,并将所提取的特征与对应于一组已知分类形式的一组模板形式的存储特征进行比较。 比较步骤比较提取的特征,其包括模板形式中包含的表的属性和输入表。 表的属性可以是表单中的表的数量,或者包括表的单元的数量。 使用近似匹配步骤来减少候选模板表单的数量。