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Positioning segmentation method and device for graphic table

A technology of graphics and tables, applied in the field of positioning, segmentation and devices of graphics tables, to achieve the effect of improving accuracy, reducing interference, and improving recognition accuracy

Active Publication Date: 2020-09-01
山东旗帜信息有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution to this problem is to provide an excuse for intervention, but this has a greater impact on work efficiency and does not fundamentally solve the problem

Method used

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  • Positioning segmentation method and device for graphic table
  • Positioning segmentation method and device for graphic table
  • Positioning segmentation method and device for graphic table

Examples

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Embodiment Construction

[0025] In order to clearly illustrate the technical characteristics of the present solution, the present application will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings.

[0026] In the first embodiment, as in figure 1 As shown, follow the steps below:

[0027] S101. Acquiring the form to be recognized: image 3 Demonstrated as an example of a table to be recognized; in figure 2 Among them, Figure 1 is a dotted line, Figure 2 is a broken line, and Figure 3 is a thin line.

[0028] S102. Image preprocessing: if it contains a red official seal, preprocess the image by selecting the R channel, and if there is no red official seal, directly perform subsequent processing;

[0029] S103. One-time binarization processing: first binarize the image, perform morphological corrosion and expansion on the image, use the getStructuringElement algorithm to process the image, and then use MORPH_RECT to obtain a rectangu...

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Abstract

The invention discloses a positioning segmentation method and device for a graphic table. The method comprises the steps of performing binarization processing on the graphic table to obtain a first graph; performing morphological corrosion expansion on the first graph, and determining table composition lines in the first graph to obtain a first table; performing Gaussian blur and binarization processing on the first table to obtain a second graph; and performing morphological corrosion expansion on the second graph, and determining a table composition line segmentation graph table based on thesecond graph. According to the invention, two times of binarization processing and two times of morphological corrosion expansion are adopted, and composition lines of the graphic table are effectively processed; the first binarization is that the picture becomes black and white, a target area and a background area can be separated, interference is reduced, and subsequent processing is facilitated; the second binarization is that a table line can be thickened and dotted lines, fine lines and broken lines can be complemented after the second binarization and expansion; and the table area blockpositioning accuracy is improved.

Description

technical field [0001] The present application relates to a method and device for positioning and dividing a graphic form. Background technique [0002] In actual production and life, although most forms are generated electronically, their presentation forms are mostly non-editable modes such as pdf and pictures, so in use, conversion of graphic forms is required. Nowadays, computer recognition is mostly used, but in some difficult-to-recognize parts such as dotted lines, thin lines, and broken lines, there is a greater possibility of recognition errors, and such errors directly reduce the availability of recognition results. Subsequent work such as text extraction and recognition has brought greater uncertainty. The current solution to this problem is to provide an excuse for intervention, but this has a greater impact on work efficiency and does not fundamentally solve this problem. Contents of the invention [0003] In order to solve the above problems, the present ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F40/18G06T5/30G06T7/11G06K9/00
CPCG06F40/18G06T5/30G06T7/11G06T2207/20004G06V30/413G06V30/10
Inventor 钟琴隆杜志诚于文才杜明本
Owner 山东旗帜信息有限公司
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