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Method and device for detecting document image occlusion

A document and image technology, applied in the field of image processing, can solve problems such as errors, information cannot be recognized and recognized, and related information input fails.

Active Publication Date: 2019-05-07
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 device for detecting document image occlusion
  • Method and device for detecting document image occlusion
  • Method and device for detecting document image occlusion

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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 relates to a method and device for detecting occlusion of a certificate image, and belongs to the technical field of image processing. The method includes: acquiring a document image; performing document boundary detection on the document image; performing character detection within the detected document boundary range to obtain a character area; combining the detected character area with the document character template The character areas are compared to determine the undetected character areas; according to the undetected character areas, a detection result is generated, and the detection result is used to indicate whether the certificate image may be blocked. The device includes an image acquisition module, a boundary detection module, a character detection module, a comparison module and a generation module. The embodiments of the present disclosure can effectively detect whether the certificate image is blocked.

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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Patent Type & Authority Patents(China)
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