A method and system for matching feature points of hazardous chemicals cargo

Abstract

The invention relates to a hazardous chemical substance cargo feature point matching method and system. The method comprises the steps of obtaining a left image and a right image of a hazardous chemical substance cargo to be measured; respectively detecting feature points of the left image and the right image by adopting SIFT operators; performing clustering analysis on the feature points, and determining a threshold value required by SIFT matching; performing primary matching on the feature points of the left image and the right image according to a threshold value to obtain a plurality of matching point pairs; and removing wrong matching point pairs to obtain an optimized matching point pair set. According to the technical scheme provided by the present invention, by detecting the feature points of the left image and the right image by adopting an SIFT operator, carrying out clustering analysis on the feature points through a DBSCAN density clustering algorithm, determining a threshold value required by SIFT matching, and after the initial matching is completed, removing wrong matching point pairs, the optimized matching point pair set is obtained so as to improve the matching accuracy. Through the DBSCAN density clustering analysis, a fixed threshold value in an SIFT algorithm is variable, the matching rate and the accuracy are greatly improved, and a guarantee is provided for a subsequent hazardous chemical substance storage distance measurement technology.

Description

technical field [0001] The invention relates to the technical field of distance measurement for storage of hazardous chemicals, in particular to a method and system for matching feature points of hazardous chemicals. Background technique [0002] With the rapid development of my country's economy, the production and use of hazardous chemicals continue to increase. Due to its characteristics of flammability, explosion and corrosion, there are serious hidden dangers of safety accidents. There is an urgent need for monitoring and early warning of the safe storage status of goods in hazardous chemical warehouses. The application of binocular vision three-dimensional measurement is very extensive. In the prior art, there is a scheme using binocular stereo ranging to locate litchi in an unstructured environment and improve the automatic collection rate of litchi. In addition, there are technical schemes in the prior art that use binocular Based on the parallax principle position...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a method and system for matching characteristic points of hazardous chemicals to solve the problem of high error rate in the matching of characteristic points of hazardous chemicals in the prior art

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