Business card identification method and device

Abstract

The invention provides a business card identification method and device. The method comprises the following steps of: obtaining a candidate business card area in a to-be-identified image; identifyinga plurality of candidate outline key points in the candidate business card area according to a preset image identification algorithm, calculating a plurality of candidate contour key points accordingto a convex hull algorithm to obtain a plurality of candidate edges, selecting a plurality of groups of candidate edges meeting a preset condition from the plurality of candidate edges, constructing acandidate quadrangle corresponding to each group of candidate edges; calculating the confidence coefficient of each candidate quadrangle according to a preset algorithm, determining a target candidate quadrangle according to the confidence coefficient, determining the outline key points of the candidate business card areas according to the target candidate quadrangle, determining the target business card areas in the candidate business card areas according to the outline key points, and identifying the business card information in the target business card areas. According to the method, the technical problem that the identification accuracy is low when the business card image with the complex background is identified in the prior art is solved, and the business card identification precision and accuracy are improved.

Description

technical field [0001] The present application relates to the technical field of image recognition, in particular to a business card recognition method and device. Background technique [0002] As a concise and beautiful information carrier, paper business cards play an important role in daily business activities and social activities. Items of information, such as name, company, phone number and other important information are stored on the terminal device, so that relevant information can be obtained in time when needed. In general, users manually enter important information such as name, company, and phone number into the terminal device one by one and save them. However, this manual input method is not only inefficient, but also prone to errors. [0003] With the development of intelligent terminal equipment, a business card recognition system has emerged, which is used to automatically convert paper business cards into electronic information and store them in the termi...

AI Technical Summary

Problems solved by technology

[0005] For this reason, this application proposes a business card recognition method and device to solve the technical problem of low recognition accuracy in the prior art when recognizing business card images with complex backgrounds

Images