CARD BORDER RECOGNITION METHOD, APPARATUS AND DEVICE, AND COMPUTER STORAGE MEDIUM

WIPO Patent Application WO/2021/184718

A1

A card border recognition method, comprising the following steps: upon receipt of an image recognition request, acquiring a target image corresponding to the image recognition request (S10); inputting a pre-processed target image into a pre-set card recognition model to perform image recognition, so as to obtain image feature information of the target image (S20); establishing a rectangular coordinate system on the basis of the image feature information, and acquiring feature point coordinates of feature points in the image feature information according to the rectangular coordinate system (S30); establishing an equation set on the basis of the feature point coordinates of the feature points, solving the equation set to obtain vertex coordinates of a card in the target image (S40); and taking straight line segments perpendicular to each other between every two vertex coordinates as the card borders of the card in the target image, and outputting a recognition result containing the card borders (S50). Also disclosed are a card border recognition apparatus and device, and a computer storage medium, improving the recognition efficiency and accuracy rate of card borders.

ZHANG GUOHUI (CN)
LEI CHENYU (CN)

PCT/CN2020/117773

September 23, 2021

September 25, 2020

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PING AN TECH SHENZHEN CO LTD (CN)

G06K9/46

CN111507324A	2020-08-07
CN110059702A	2019-07-26
CN105139378A	2015-12-09
CN108647634A	2018-10-12
US20160110627A1	2016-04-21

SCIHEAD IP LAW FIRM (CN)

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