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Method for automatically dividing handwritten clauses in electronic notebook

A notebook, electronic technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve problems such as the inability to automatically extract electronic documents

Active Publication Date: 2013-04-03
SHANGHAI HEHE INFORMATION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for automatically segmenting handwritten entries in an electronic notebook, which is used to solve the problem in the prior art that the content of a specific position in an electronic document cannot be automatically extracted

Method used

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  • Method for automatically dividing handwritten clauses in electronic notebook

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a method for automatically segmenting handwritten entries in an electronic notebook, such as figure 1 As shown, the method for automatically segmenting handwritten entries in an electronic notebook includes:

[0024] Take images of the paper pages of notebooks that need to be digitized. In this embodiment, the paper page of the notebook that needs to be digitized can be of any type, such as the paper page is printed with a classification identification area, a page number area, a title area, a branch line, or / and a column line, etc. , can also be any combination of the above items.

[0025] The four edge lines of the paper page image are determined by a straight line detection method in the image, and the page area defined by the four edge lines is corrected into a square area. Specifically, the straight line detection method in the image is used to obtain the straight lines representing the four outer edges of the paper page image, and the ba...

Embodiment 2

[0031] This embodiment provides a method for automatically segmenting handwritten entries in an electronic notebook, which differs from the method for automatically segmenting handwritten entries in an electronic notebook described in Embodiment 1 in that: the paper pages are known in advance Type, the specific implementation of determining the type of the paper page according to the image of the paper page is: manually specify the type of the paper page; that is, the user manually specifies the type of the paper page before capturing the image, or before processing the image after capturing the image The type of paper pages of the notebook, such as selecting one from a series of notebook page types pre-saved in application software such as camScanner.

Embodiment 3

[0033] This embodiment provides a method for automatically segmenting handwritten entries in an electronic notebook, which differs from the method for automatically segmenting handwritten entries in an electronic notebook described in Embodiments 1 and 2 in that the paper quality is known in advance. The type of the page, the specific implementation of determining the type of the paper page according to the image of the paper page is as follows:

[0034] A type mark is printed at a fixed position on the paper page; the type mark can be a word, a symbol, a figure or a combination of any two or three items.

[0035] Detecting the type mark on the image of the paper page, comparing the detected type mark with the type mark known in advance to find out the type of the paper page. A type of mark is printed at a fixed position on the paper page; that is, a pre-designed mark (that is, a type mark) is printed at a designated position on each paper page of the notebook in advance, and ...

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Abstract

The invention provides a method for automatically dividing handwritten clauses in an electronic notebook. The method includes: shooting a paper page image of the notebook needing to be electronized; determining four edge lines of the paper page image through a linear detection method in the image, and rectifying the page area defined by the four edges lines into a square area; determining the type of a paper page according to the paper page image, and obtaining a paper page blank dividing template of a pre-reserved type notebook, wherein the blank dividing template is composed of a plurality of character blocks; and determining a character block where the handwriting of a user locates in the square area, and automatically dividing and extracting the handwriting of the user in any character block with the character blocks as the unit. The pre-reserved blank dividing template is used for aiding to obtain and divide the handwriting on the electronized paper page, and the blank dividing template is composed of the plurality of character blocks, so that each character block can serve as the dividing unit, and automatic dividing and extracting of electronized document contents can be achieved.

Description

technical field [0001] The invention belongs to the technical field of electronic computers and relates to a method for automatically segmenting handwritten entries in electronic notebooks. Background technique [0002] In daily life, people often need to take paper documents, save them as photos in JPEG format, or generate documents in PDF format, so as to realize the electronicization of paper documents and facilitate management. Smartphones are one of the commonly used tools to digitize paper documents. Because smartphones generally have a camera, the camera on the mobile phone can be used to take pictures of paper documents, and then convert the captured electronic documents into photos in JPEG format after certain image processing, or generate documents in PDF format. Application software with the above-mentioned functions has also been relatively popular, such as the application CamScanner in the Apple App Store and the Google App Store. These application software ca...

Claims

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Application Information

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IPC IPC(8): G06K9/32G06V30/40
CPCG06V30/40
Inventor 陈青山罗希平
Owner SHANGHAI HEHE INFORMATION TECH DEV
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