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Method and device for detecting page direction of document

A direction detection and page technology, applied in the field of image processing, can solve problems such as inability to obtain detection results

Active Publication Date: 2011-09-21
PEKING UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a document page direction detection method and device, which can solve the problem in the prior art that correct detection results cannot be obtained for complex document pages

Method used

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  • Method and device for detecting page direction of document
  • Method and device for detecting page direction of document
  • Method and device for detecting page direction of document

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0018] figure 1 It shows a flowchart of a method for detecting the orientation of a document page according to an embodiment of the present invention, including the following steps:

[0019] S102. Separating the image and text on the manuscript page, splitting the obtained text area into multiple text units, and determining the language category attributes of the multiple text units;

[0020] S104. Obtain the writing direction attribute feature values ​​of multiple text units according to the language category attribute, and incorporate them into the corresponding global statistics;

[0021] S106. According to the characteristic values ​​of each writing direction attribute in the global statistics, respectively obtain the page direction and the corresponding confidence degree for each writing direction attribute characteristic value...

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Abstract

The invention discloses a method and device for detecting page direction of a document, wherein the method comprises the following steps: performing picture-text separation on a page of the document, splitting a got text region into a plurality of text units, and determining language type attributes of the plurality of text units; getting presentation direction attribute feature values of the plurality of text units aiming at the language type attributes, and incorporating the presentation direction attribute feature values into corresponding global statistics; getting the page directions andthe corresponding confidence levels aiming at all the presentation direction attribute feature values respectively according to all the presentation direction attribute feature values in the global statistics; and determining the page direction of the document and the corresponding overall confidence level according to the page directions and the corresponding confidence levels of all the presentation direction attribute feature values.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a method and device for detecting the page direction of a document. Background technique [0002] Although digital document exchange has gradually become the mainstream mode of modern communication, content with legal effect and authentication, such as contracts and valuable papers, still needs to be transmitted and stored in the form of paper documents. The management of such paper documents and the delivery of content need to be digitized by scanning. In daily offices and document centralized management organizations, the business demand for scanning large quantities of paper documents is huge. [0003] In the process of scanning a large batch of documents, it is necessary to arrange all documents in the forward direction. There are two ways to correct the orientation of the document afterwards. One is to manually browse and rotate the image page by page, and the other...

Claims

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Application Information

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IPC IPC(8): G06K9/32
Inventor 袁梦尤张宏志李平立六尾敏明
Owner PEKING UNIV
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