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Method and device for assigned text line extraction

An extraction method, a technology of text lines, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as background noise is very sensitive

Inactive Publication Date: 2007-03-14
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] These methods focus on how to extract text lines from different background images, but they cannot effectively extract specified text lines from several mixed text lines
Another problem with these methods is that they are very sensitive to background noise

Method used

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  • Method and device for assigned text line extraction
  • Method and device for assigned text line extraction
  • Method and device for assigned text line extraction

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Embodiment Construction

[0035] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings. These embodiments are only exemplary and explanatory, not limiting the protection scope of the present invention.

[0036] Fig. 3A is a functional block diagram of an apparatus for extracting specified text lines according to an embodiment of the present invention. As shown in Figure 3A, the designated text line extracting device of an embodiment of the present invention comprises input unit 301, text line pre-extraction unit 302, horizontal text line separation unit 303, vertical text line separation unit 304, noise Point removal judging unit 305, text line left and right edge position adjustment unit 307, text line upper and lower edge position adjustment unit 308, designated text line discrimination unit 309, output unit 310, and horizontal direction text line separation unit 303, vertical direction text line separation The specified tex...

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Abstract

The row extraction method for appointed text comprises: deciding whether there are multiple-row text in the text image, and removing noise between rows. This invention belongs to separate text image at vertical direction.

Description

technical field [0001] The present invention relates to a device and method for extracting specified text lines, and more particularly, to a device and method for extracting specified text lines from multiple text lines such as table columns. Background technique [0002] Specified text line extraction is a very important function in applications such as table recognition. Its purpose is to extract the specified text line from several lines of text line images mixed together by using the predefined, standard information for specifying the text line (called the specified text line description information). However, it is not an easy task to detect the target text lines in the column of the table. First, there may be more than one text line in a column; second, there may be many noises between the text lines. Figure 1 is an example of form recognition. There are 5 lines of text information in this column, but only the string of numbers and letters on the right side of the sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20
Inventor 孙俊堀田悦伸藤本克仁直井聪
Owner FUJITSU LTD