公开(公告)号：US11688057B2

公开(公告)日：2023-06-27

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: G06V10/75 ,  G06T7/00 ,  G06V10/30 ,  G06V10/74 ,  G06F18/22

CPC classification number: G06T7/001 ,  G06F18/22 ,  G06V10/30 ,  G06V10/751 ,  G06V10/761 ,  G06T2207/10016 ,  G06T2207/20076 ,  G06T2207/30108 ,  G06T2207/30181

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.