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Patent Searching and Data


Title:
TEXTURE FEATURE EXTRACTION METHOD, TEXTURE FEATURE EXTRACTION APPARATUS, AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/004180
Kind Code:
A1
Abstract:
A texture feature extraction method provided by the present application comprises: obtaining a grayscale image, the grayscale image comprising palmprint information; performing filtering processing on the grayscale image in N different directions by means of a preset filtering mode to obtain filtered images of the grayscale image respectively in the N different directions, and performing fusion processing on the filtered images in the N different directions to obtain a first image, wherein N is an integer greater than 0; obtaining curvature information of each pixel point in the grayscale image respectively in the M different directions; obtaining a second image according to the curvature information of each pixel point in the M different directions, wherein M is an integer greater than 0; and fusing the first image and the second image to obtain a target image, the target image comprising texture feature information in the palmprint information. By means of the present application, palmprint texture features having high definition can be obtained.

Inventors:
HUI HUI (CN)
YAN MINGYANG (CN)
Application Number:
PCT/CN2020/092722
Publication Date:
January 14, 2021
Filing Date:
May 27, 2020
Export Citation:
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Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
G06T7/40; G06K9/00; G06T5/00; G06T5/50
Foreign References:
CN110473242A2019-11-19
CN107346434A2017-11-14
CN101533475A2009-09-16
CN106022218A2016-10-12
US20090220127A12009-09-03
US20120314913A12012-12-13
Other References:
WU; JIACUN: "Finger Vein Recognition Algorithm Research", MASTER THESIS, no. 5, 1 May 2019 (2019-05-01), pages 1 - 69, XP009525513
RAO QING: "Research of Finger Vein Recognition Algorithms Based on Location and Direction Coding", CHINESE MASTER'S THESES FULL-TEXT DATABASE, no. 7, 1 May 2013 (2013-05-01), pages 1 - 80, XP055772673
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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