Document image recognition apparatus and computer-readable storage medium storing document image recognition program

    公开(公告)号:US06577763B2

    公开(公告)日:2003-06-10

    申请号:US09944412

    申请日:2001-09-04

    IPC分类号: G06K948

    摘要: A document image tilt detection unit extracts a set of elements forming a character from a document image, extracts candidates for horizontal and vertical lines based on the character elements, estimates the reliability of each candidate for a line, and extracts a set of probable lines. Then, it estimates the tilt of the document image based on the arrangement of the character elements belonging to the line elements in the set of probable lines. A layout analysis unit extracts a set of lines in a fixed line direction from a set of basic elements forming the document image, and reciprocally performs the extraction of a column based on the correlation between lines and the extraction of a line based on the restrictions of the column. By providing the document image tilt detection unit and the layout analysis unit, the tilt of the document image containing both vertical and horizontal character lines can be detected, and lines and columns can be extracted at a high speed with high precision.

    Document image processing device and method thereof
    2.
    发明授权
    Document image processing device and method thereof 失效
    文件图像处理装置及其方法

    公开(公告)号:US06466694B2

    公开(公告)日:2002-10-15

    申请号:US09060712

    申请日:1998-04-16

    IPC分类号: G06K900

    摘要: A processing device performs region identification of an input image, and then performs an intra-region recognition process. The type code of each region and the individual code of a recognition result are then displayed, so that a user can modify both of the results of the region identification and the recognition process at one time. Furthermore, the processing device displays an original image close to the recognition result. If no correct answer exists among recognition candidates, code is added to the original image, and the original image with the code added is handled as a recognition result.

    摘要翻译: 处理装置执行输入图像的区域识别,然后进行区域内识别处理。 然后显示每个区域的类型代码和识别结果的各个代码,使得用户可以一次修改区域标识和识别过程的两个结果。 此外,处理装置显示接近识别结果的原始图像。 如果识别候选者中没有正确的答案,则将代码添加到原始图像,并且将具有添加的代码的原始图像作为识别结果进行处理。

    Document image recognition apparatus and computer-readable storage medium storing document image recognition program
    3.
    发明授权
    Document image recognition apparatus and computer-readable storage medium storing document image recognition program 有权
    文件图像识别装置和存储文件图像识别程序的计算机可读存储介质

    公开(公告)号:US06332046B1

    公开(公告)日:2001-12-18

    申请号:US09193868

    申请日:1998-11-18

    IPC分类号: G06K936

    摘要: A document image tilt detection unit extracts a set of elements forming a character from a document image, extracts candidates for horizontal and vertical lines based on the character elements, estimates the reliability of each candidate for a line, and extracts a set of probable lines. Then, it estimates the tilt of the document image based on the arrangement of the character elements belonging to the line elements in the set of probable lines. A layout analysis unit extracts a set of lines in a fixed line direction from a set of basic elements forming the document image, and reciprocally performs the extraction of a column based on the correlation between lines and the extraction of a line based on the restrictions of the column. By providing the document image tilt detection unit and the layout analysis unit, the tilt of the document image containing both vertical and horizontal character lines can be detected, and lines and columns can be extracted at a high speed with high precision.

    摘要翻译: 文档图像倾斜检测单元从文档图像中提取形成字符的一组元素,基于字符元素提取水平和垂直行的候选,估计每行候选人的可靠性,并提取一组可能的行。 然后,它基于属于可能线组中的线元素的字符元素的排列来估计文档图像的倾斜度。 布局分析单元从形成文档图像的基本元素的集合中提取固定线方向的一组线,并且基于线间的相关性和基于线的提取而相互进行列的提取 列。 通过提供文件图像倾斜检测单元和布局分析单元,可以检测包含垂直和水平字符行两者的文档图像的倾斜,并且可以高精度高速提取行和列。

    Layout analysis program, layout analysis apparatus and layout analysis method
    4.
    发明申请
    Layout analysis program, layout analysis apparatus and layout analysis method 有权
    布局分析程序,布局分析仪器和布局分析方法

    公开(公告)号:US20070140560A1

    公开(公告)日:2007-06-21

    申请号:US11384327

    申请日:2006-03-21

    IPC分类号: G06K9/34

    CPC分类号: G06K9/00463

    摘要: A layout analysis program, a layout analysis apparatus, layout analysis method and a medium can highly accurately extract a text block from an image if the image is a color image. The layout analysis program causes a computer to execute a divided region extracting step that extracts a region partitioned by a pattern according to a binary image so as to use the outcome of extraction as divided region, a set of character elements extracting step that extracts a set of the character elements extracted by a first binary image layout analysis process for each extracted divided region so as to use the outcome of extraction as set of character elements, a text block extracting step that extracts a region including the extracted set of character elements in each divided region so as to avoid overlapping the non-character elements extracted by a second binary image layout analysis process and use the outcome of extraction as text block and a layout information generating step that generates layout information according to the text block and the non-character elements extracted by the second binary image layout analysis process.

    摘要翻译: 如果图像是彩色图像,则布局分析程序,布局分析装置,布局分析方法和介质可以从图像高精度地提取文本块。 布局分析程序使计算机执行划分区域提取步骤,其提取根据二进制图像的图案划分的区域,以便将提取的结果用作划分区域,提取一组字符元素提取步骤 通过对于每个提取的分割区域的第一二进制图像布局分析处理提取的字符元素,以便将提取的结果用作字符元素的集合;文本块提取步骤,提取包括提取的每个字符元素集合的区域 以避免与通过第二二进制图像布局分析处理提取的非字符元素重叠并使用提取结果作为文本块和布局信息生成步骤,根据文本块和非字符生成布局信息 通过第二个二进制图像布局分析过程提取的元素。

    Correcting device and method for perspective transformed document images
    5.
    发明授权
    Correcting device and method for perspective transformed document images 有权
    用于透视变换的文档图像的校正装置和方法

    公开(公告)号:US08170368B2

    公开(公告)日:2012-05-01

    申请号:US12076122

    申请日:2008-03-13

    CPC分类号: G06K9/3283 G06K2009/363

    摘要: This invention provides a correcting device and a correcting method for perspective transformation of document images. The correcting device comprises a horizontal vanishing point determining unit, for detecting a horizontal vanishing point of the perspective transformed document image; a vertical vanishing point determining unit, for detecting a vertical vanishing point of the perspective transformed document image; and a perspective transformation correcting and converting unit, for correcting the perspective transformed document image; wherein the horizontal vanishing point determining unit comprises a direct horizontal line segment detecting unit, an indirect horizontal line segment detecting unit and a horizontal vanishing point detecting unit, and wherein the horizontal vanishing point detecting unit detects a horizontal vanishing point in accordance with a direct horizontal line segment detected by the direct horizontal line segment detecting unit and an indirect horizontal line segment detected by the indirect horizontal line segment detecting unit.

    摘要翻译: 本发明提供了一种用于文件图像的透视变换的校正装置和校正方法。 校正装置包括水平消失点确定单元,用于检测透视变换文档图像的水平消失点; 垂直消失点确定单元,用于检测透视变换文档图像的垂直消失点; 以及透视变换校正和转换单元,用于校正透视变换的文档图像; 其中所述水平消失点确定单元包括直接水平线段检测单元,间接水平线段检测单元和水平消失点检测单元,并且其中所述水平消失点检测单元根据直接水平检测水平消失点 由直接水平线段检测单元检测的线段和由间接水平线段检测单元检测的间接水平线段。

    Layout analysis program, layout analysis apparatus and layout analysis method
    6.
    发明授权
    Layout analysis program, layout analysis apparatus and layout analysis method 有权
    布局分析程序,布局分析仪器和布局分析方法

    公开(公告)号:US07711189B2

    公开(公告)日:2010-05-04

    申请号:US11384327

    申请日:2006-03-21

    IPC分类号: G06K9/34 G06K9/46 G06K9/00

    CPC分类号: G06K9/00463

    摘要: A layout analysis program, a layout analysis apparatus, layout analysis method and a medium can highly accurately extract a text block from an image if the image is a color image. The layout analysis program causes a computer to execute a divided region extracting step that extracts a region partitioned by a pattern according to a binary image so as to use the outcome of extraction as divided region, a set of character elements extracting step that extracts a set of the character elements extracted by a first binary image layout analysis process for each extracted divided region so as to use the outcome of extraction as set of character elements, a text block extracting step that extracts a region including the extracted set of character elements in each divided region so as to avoid overlapping the non-character elements extracted by a second binary image layout analysis process and use the outcome of extraction as text block and a layout information generating step that generates layout information according to the text block and the non-character elements extracted by the second binary image layout analysis process.

    摘要翻译: 如果图像是彩色图像,则布局分析程序,布局分析装置,布局分析方法和介质可以从图像高精度地提取文本块。 布局分析程序使计算机执行划分区域提取步骤,其提取根据二进制图像的图案划分的区域,以便将提取的结果用作划分区域,提取一组字符元素提取步骤 通过对于每个提取的分割区域的第一二进制图像布局分析处理提取的字符元素,以便将提取的结果用作字符元素的集合;文本块提取步骤,提取包括提取的每个字符元素集合的区域 以避免与通过第二二进制图像布局分析处理提取的非字符元素重叠并使用提取结果作为文本块和布局信息生成步骤,根据文本块和非字符生成布局信息 通过第二个二进制图像布局分析过程提取的元素。

    Correcting device and method for perspective transformed document images
    7.
    发明申请
    Correcting device and method for perspective transformed document images 有权
    用于透视变换的文档图像的校正装置和方法

    公开(公告)号:US20080226171A1

    公开(公告)日:2008-09-18

    申请号:US12076122

    申请日:2008-03-13

    IPC分类号: G06K9/34

    CPC分类号: G06K9/3283 G06K2009/363

    摘要: This invention provides a correcting device and a correcting method for perspective transformation of document images. The correcting device comprises a horizontal vanishing point determining unit, for detecting a horizontal vanishing point of the perspective transformed document image; a vertical vanishing point determining unit, for detecting a vertical vanishing point of the perspective transformed document image; and a perspective transformation correcting and converting unit, for correcting the perspective transformed document image; wherein the horizontal vanishing point determining unit comprises a direct horizontal line segment detecting unit, an indirect horizontal line segment detecting unit and a horizontal vanishing point detecting unit, and wherein the horizontal vanishing point detecting unit detects a horizontal vanishing point in accordance with a direct horizontal line segment detected by the direct horizontal line segment detecting unit and an indirect horizontal line segment detected by the indirect horizontal line segment detecting unit.

    摘要翻译: 本发明提供了一种用于文件图像的透视变换的校正装置和校正方法。 校正装置包括水平消失点确定单元,用于检测透视变换文档图像的水平消失点; 垂直消失点确定单元,用于检测透视变换文档图像的垂直消失点; 以及透视变换校正和转换单元,用于校正透视变换的文档图像; 其中,所述水平消失点确定单元包括直接水平线段检测单元,间接水平线段检测单元和水平消失点检测单元,并且其中所述水平消失点检测单元根据直接水平检测水平消失点 由直接水平线段检测单元检测的线段和由间接水平线段检测单元检测的间接水平线段。

    Document information input apparatus, document information input method, document information input program and recording medium
    8.
    发明授权
    Document information input apparatus, document information input method, document information input program and recording medium 失效
    文件信息输入装置,文件信息输入方法,文件信息输入程序和记录介质

    公开(公告)号:US07280693B2

    公开(公告)日:2007-10-09

    申请号:US10602624

    申请日:2003-06-25

    IPC分类号: G06K9/00

    摘要: A document information input apparatus detects a position and an attribute of an area of a real document to be input designated by a user with high accuracy. Based on the detected position and attribute, the document information input apparatus recognizes an image of the area as text information by performing recognition processes suitable for the detected attribute such as character recognition, table recognition and a figure process. Then, the document information input apparatus pastes the resulting information to a pertinent position of an electronic document on a display. As a result, it is possible to input information such as a character sequence, a table and a figure from a real document to an electronic document at high speed and with high accuracy.

    摘要翻译: 文件信息输入装置以高精度检测要由用户指定的真实文件的区域的位置和属性。 基于检测到的位置和属性,文档信息输入装置通过执行诸如字符识别,表识别和图形处理的检测属性的识别处理,将该区域的图像识别为文本信息。 然后,文件信息输入装置将所得到的信息粘贴到显示器上的电子文档的相关位置。 结果,可以高速且高精度地将诸如字符序列,表格和图形的信息从真实文档输入到电子文档。

    Image forming apparatus having improved protection against over-heating
    9.
    发明授权
    Image forming apparatus having improved protection against over-heating 有权
    图像形成装置具有改进的防过热保护

    公开(公告)号:US07792449B2

    公开(公告)日:2010-09-07

    申请号:US11680123

    申请日:2007-02-28

    申请人: Koji Kurokawa

    发明人: Koji Kurokawa

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2042

    摘要: In an image forming apparatus which uses a pressing roller and a fixing roller that are pressing and contacting each other to sandwich record medium and fixes toner image onto the record medium, in order to inhibit a temperature in non-paper passing area from extremely rising, a temperature detecting section detects a temperature of the fixing roller via a thermistor (2) 75 installed in the non-paper passing area of the record medium in the fixing roller; a temperature comparing section 44 compares the detection temperature detected by the temperature detecting section 62 with a predetermined standard temperature, a print controlling section 45 reduces heat amount provided to the fixing roller for a predetermined period when the detection temperature exceeds the standard temperature on the basis of a comparison result of the temperature comparing section 44.

    摘要翻译: 在图像形成装置中,使用压接辊和定影辊彼此夹紧并夹持记录介质并将调色剂图像定影到记录介质上,为了防止非纸张通过区域中的温度极度升高, 温度检测部分经由安装在定影辊中的记录介质的非纸通过区域中的热敏电阻器(2)75检测定影辊的温度; 温度比较部分44将由温度检测部分62检测的检测温度与预定的标准温度进行比较,当检测温度超过标准温度时,打印控制部分45减少提供给定影辊的热量达预定时间段 的温度比较部分44的比较结果。

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20070217806A1

    公开(公告)日:2007-09-20

    申请号:US11680123

    申请日:2007-02-28

    申请人: Koji Kurokawa

    发明人: Koji Kurokawa

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2042

    摘要: In an image forming apparatus which uses a pressing roller and a fixing roller that are pressing and contacting each other to sandwich record medium and fixes toner image onto the record medium, in order to inhibit a temperature in non-paper passing area from extremely rising, a temperature detecting section detects a temperature of the fixing roller via a thermistor (2) 75 installed in the non-paper passing area of the record medium in the fixing roller; a temperature comparing section 44 compares the detection temperature detected by the temperature detecting section 62 with a predetermined standard temperature, a print controlling section 45 reduces heat amount provided to the fixing roller for a predetermined period when the detection temperature exceeds the standard temperature on the basis of a comparison result of the temperature comparing section 44.

    摘要翻译: 在图像形成装置中,使用压接辊和定影辊彼此夹紧并夹持记录介质并将调色剂图像定影到记录介质上,为了防止非纸张通过区域中的温度极度升高, 温度检测部分经由安装在定影辊中的记录介质的非纸通过区域中的热敏电阻器(2)75检测定影辊的温度; 温度比较部分44将由温度检测部分62检测的检测温度与预定的标准温度进行比较,当检测温度超过标准温度时,打印控制部分45减少提供给定影辊的热量达预定时间段 的温度比较部分44的比较结果。