A deformation measurement method based on surface texture information of rocks and its application

作     者：Yanbo Zhang Xin Han Peng Liang Xulong Yao Qun Li Guangyuan Yu Qi Wang Yanbo Zhang;Xin Han;Peng Liang;Xulong Yao;Qun Li;Guangyuan Yu;Qi Wang

作者机构：College of Mining EngineeringNorth China University of Science and TechnologyTangshan 063210China Green Intelligent Mining Technology Innovation Center of Hebei ProvinceTangshan 063210China Key Laboratory for Geo-mechanics and Deep Underground EngineeringChina University of Mining and Technology-BeijingBeijing 100083China 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2023年第33卷第9期

页      面：1117-1130页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(No.52074123) the Natural Science Foundation of Hebei Province(Nos.E2022209143,E2021209148 and E2021209052) 

主　　题：Deformation measurement Texture information Digital speckle Local binary model Target tracking algorithm 

摘      要：Users of the digital image correlation method are faced with the problem of poor operability,low repeatability,and lack of standardized specifications for spraying *** solve the problem,the research proposed a rock deformation measurement method that obviates the need to spray speckles.A local binary model was established by using the local binary pattern(LBP)operator based on deep texture features on rock *** resulting LBP digital speckle pattern can substitute artificial speckle patterns and demonstrates high quality and strong *** on the LBP digital speckle pattern,the target tracking algorithm was employed to achieve non-contact measurement of the dynamic displacements of *** feasibility and effectiveness of the algorithm in practical application were verified by conducting shear tests on granite and *** results show that the deformation characteristics in the displacement nephograms are in line with the measured data pertaining to rock fracturing and conform to the basic characteristics of the shear failure of *** deformation measurement method based on surface texture information can realize non-contact displacement measurement of rocks under conditions without speckles:this obviates the influence of the quality of sprayed speckles on the accuracy of the measurement of deformation.