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Method and apparatus for detecting whether document image is covered

A certificate and image technology, applied in the field of image processing, can solve problems such as information cannot be recognized and recognized, errors, and related information entry failures.

Active Publication Date: 2016-08-24
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the relevant information in the obtained image of the certificate is blocked, it will lead to unrecognizable information or errors in the recognition results, which may eventually lead to failure of relevant information entry

Method used

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  • Method and apparatus for detecting whether document image is covered
  • Method and apparatus for detecting whether document image is covered
  • Method and apparatus for detecting whether document image is covered

Examples

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Embodiment Construction

[0120] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0121] The embodiments of the present disclosure can be applied to the scene where verification information is uploaded after the certificate is photographed, especially for the scene where the certificate is photographed with a hand-held terminal device or the certificate is photographed with a handheld terminal device, because when the certificate is taken with a hand-held certificate, some are...

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Abstract

The disclosure is directed to a method and apparatus for detecting whether a document image is covered, and belongs to the technical field of image processing. The method includes the steps of acquiring a document image; detecting the document boundary of the document image; conducting character detection in the range of the detected document boundary, and obtaining a character region; matching the detected character region with a character region in a document character template, and determining an undetected character region; and according to the undetected character region, generating a detection result for representing whether the document image may be covered or not. The apparatus includes an image acquisition module, a boundary detection module, a character detection module, a comparison module and a generation module. The embodiment of the disclosure can effectively detect whether the document image is covered.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, in particular to a method and device for detecting occlusion of a certificate image. Background technique [0002] In people's daily life, it is often necessary to obtain relevant information from documents. With the rapid development of technologies such as computers and image processing, the use of computers to automatically identify and enter relevant information has become more and more popular. [0003] In the related technologies, the document image is usually collected by shooting or scanning, and then the collected document image is processed and analyzed to automatically identify and extract relevant information in the document image. However, if the relevant information in the acquired image of the certificate is blocked, it will lead to unrecognizable information or errors in the recognition results, which may eventually lead to failure of relevant information entry....

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/34G06K9/32G06K9/20G06T7/00
CPCG06V10/23G06V30/1478G06V30/153G06V10/759G06F18/22
Inventor 王百超范金松杨松
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD