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Strip-shaped regular paper scrap splicing method based on line splicing

A technology of shredded paper and strips, which is applied in the field of splicing of strips of shredded paper based on column splicing, to achieve the effect of simple program, simple operation and few auxiliary tools

Inactive Publication Date: 2014-03-19
XIAN UNIV OF TECH
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  • Description
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for splicing paper strips of regular fragments to solve the recovery problem of broken documents cut in columns

Method used

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  • Strip-shaped regular paper scrap splicing method based on line splicing
  • Strip-shaped regular paper scrap splicing method based on line splicing
  • Strip-shaped regular paper scrap splicing method based on line splicing

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0032] The present invention provides a splicing method based on splicing strips of regular shredded paper, which is specifically implemented according to the following steps:

[0033] Step 1. Take a photo of the strips of regular shredded paper, extract the image, and number the shredded paper images, which are recorded as 1, 2, ... 3, n;

[0034] Step 2, use Matlab to sequentially extract the grayscale matrix g of each shredded paper image i (i=1,...,n), take the grayscale matrix g of each shredded image i The gray value of the first column and the last column of , and in order to form a gray matrix G that contains the edges of all shredded paper images; where, the gray matrix g i And the elements in the grayscale matrix G are the grayscale values ​​of the image, the color depth ranges from 0 to 225, black is 0, white is 225, g i is an n-order square mat...

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Abstract

The invention provides a strip-shaped regular paper scrap splicing method based on line splicing. The strip-shaped regular paper scrap splicing method comprises the following steps: photographing strip-shaped regular paper scraps, extracting images, and numbering the paper scrap images; extracting gray matrixes gi(i=1,..., n) of the paper scrap images in order by using a Matlab (Matrix Laboratory), extracting the first line and last line of the gray values in the gray matrix gi of each paper scrap image, and forming a gray matrix G which contains the edges of all the paper scrap images in order; carrying out Pearson correlation coefficient analysis on the gray matrix G obtained from the step 2 by using SPSS (Statistical Package for the Social Sciences) software, and establishing a correlation coefficient matrix R; calculating the maximal value of each line of the correlation coefficient matrix R; and splicing pictures by reversely calculating the image numbers according to the maximal value of each line of the correlation coefficient matrix R. According to the strip-shaped regular paper scrap splicing method provided by the invention, line splicing model is very accurate, edge connection is fully considered, and destroyed text information can be restored by carrying out the digital image processing and automatic splicing on the strip-shaped paper scraps.

Description

technical field [0001] The invention belongs to the technical field of image processing and information restoration, and in particular relates to a splicing method based on splicing by columns. Background technique [0002] Fragmented document splicing has important applications in the fields of judicial evidence restoration, historical document restoration, and military intelligence acquisition. In contemporary society, paper shredders are widely used, which shred discarded documents into regular strips of paper. However, in some cases, important company documents may be mistakenly treated as obsolete documents, and discarded may be used by criminals to cause immeasurable losses, so it is necessary to restore the broken text information . [0003] The invention transforms the splicing of shredded paper into image splicing based on the edge handwriting broken line recognition method. This splicing technology can be applied to various fields such as computer vision, patter...

Claims

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Application Information

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IPC IPC(8): G06T5/50
Inventor 曹培培杜文彬于龙洋
Owner XIAN UNIV OF TECH
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