Mine surface crack automatic measurement and extraction method based on image recognition
By using multi-time-period, multi-angle image acquisition and feature matching technology, the problem of high extraction error of surface cracks in mines has been solved, achieving high-precision crack identification and measurement, and ensuring the accuracy of mine safety monitoring.
CN122265897APending Publication Date: 2026-06-23SHAANXI SHANMEI PUBAI MINING CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHAANXI SHANMEI PUBAI MINING CO LTD
- Filing Date
- 2026-05-28
- Publication Date
- 2026-06-23
Smart Images
Figure CN122265897A_ABST
Abstract
This invention relates to the field of image processing, specifically to an automatic measurement and extraction method for surface cracks in mines based on image recognition. The method employs a multi-time-segment, multi-angle mine image acquisition strategy, performing feature matching and benchmark registration on multiple mine images to align all images to the same geographic coordinate system. Candidate cracks are selected based on edge overlap in the crack representation of the mine images. The final crack edges are obtained based on the grayscale features and edge pixel overlap of the corresponding regions of the candidate cracks in each mine image. Finally, the final crack edges are merged based on the direction angle and distance between them to obtain the actual cracks. This invention can identify areas in complex mine surfaces that may contain cracks, reducing interference from sunlight and shadows, improving crack identification accuracy, and reducing the false positive rate, thus facilitating subsequent measurement and damage assessment and the development of corresponding safety measures.
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