公开(公告)号：US20220020134A1

公开(公告)日：2022-01-20

申请号：US17228979

申请日：2021-04-13

Applicant: China University of Mining and Technology

Inventor： Qiqi KOU ,  Deqiang CHENG ,  Yuchen WANG ,  Haixiang LI ,  Liangliang CHEN ,  Kai ZHAO ,  Rui GAO ,  Xinzhu FU

IPC: G06T7/00 ,  G06K9/40 ,  G06K9/62

Abstract: A method and system for matching image features is applied to mine machine vision. The method includes de-noising an image, performing super-pixel segmentation to obtain a plurality of image blocks, calculating the information entropy of each image block to obtain an image block with information entropy greater than a first preset threshold, extracting feature points of the image block, to obtain the feature point set of the image, using a wavelet method to describe the feature points in the feature point set to obtain a feature point descriptor set, and matching feature points in the feature point set with the feature points of a target image.