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Seal recognition method, device, equipment and medium

A recognition method and seal technology, applied in the field of computer vision, can solve the problems of poor recognition accuracy and coverage, achieve good accuracy and coverage, ensure accuracy, and improve recognition accuracy

Pending Publication Date: 2022-02-25
CHINA CONSTRUCTION BANK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a seal recognition method, device, equipment and media to solve the problem of poor recognition accuracy and coverage of seal text content in document images, and to achieve better results in accuracy and coverage

Method used

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  • Seal recognition method, device, equipment and medium
  • Seal recognition method, device, equipment and medium
  • Seal recognition method, device, equipment and medium

Examples

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Embodiment Construction

[0041] The present application will be further described below in combination with specific embodiments and accompanying drawings. It can be understood that the specific embodiments described here are only for explaining the present application, rather than limiting the present application. In addition, for the convenience of description, only some but not all structures or processes related to the present application are shown in the drawings. It should be noted that in this specification, like numerals and letters designate like items in the following drawings.

[0042] It should be understood that although the terms "first", "second", etc. may be used herein to describe various features, these features should not be limited by these terms. These terms are used for distinction only and should not be construed as indicating or implying relative importance. For example, a first feature could be termed a second feature, and similarly a second feature could be termed a first f...

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PUM

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Abstract

The invention relates to the technical field of computer vision, in particular to a seal recognition method, a device, equipment and a medium. The method comprises the following steps: collecting a to-be-recognized seal image; performing character recognition on the to-be-recognized seal image to obtain recognized characters, and performing feature vector extraction on the seal image to obtain a first feature vector; feature matching is conducted on feature vectors of existing seals and the first feature vectors, and seal characters of one or more existing seals with the matching degree exceeding a first preset threshold value are obtained; and performing similarity comparison on the seal characters of one or more existing seals and the recognition characters, outputting the seal characters with the highest similarity and exceeding a second preset threshold value as an recognition result; and when the similarity does not exceed the second preset threshold value, outputting the seal character of the existing seal with the highest matching degree as the recognition result.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a stamp recognition method, device, equipment and medium. Background technique [0002] With the development of society and economy, the transaction volume of the letter of credit business in the field of international settlement has grown rapidly, and the number of document images involved has also shown a rapid increase. In order to speed up business processing and reduce the workload of business personnel, computers can be used Technology assists. [0003] For business scenarios such as letters of credit that require high consistency, efficient and accurate extraction of image information is the primary task in the process of document processing. Document images often contain printed text, watermarks, signatures, seals, etc. For printed texts, there are currently some relatively mature detection and recognition algorithms; for watermarks, signatures, seals, etc., targ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V30/146G06V30/148G06V30/192G06V30/41G06K9/62G06Q40/02
CPCG06Q40/02G06F18/22
Inventor 林俪于淑英王国悦卜丽张岩徐云
Owner CHINA CONSTRUCTION BANK
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