城市地质2024，Vol.19Issue(2)：267-273,7.DOI:10.3969/j.issn.2097-3764.2024.02.016
北京市密云东庄铁矿区岩浆岩断面结晶度特征信息提取方法研究
Methods to extract crystallinity characteristic information of magmatic rock section in Miyun,Beijing
摘要
Abstract
Based on the MATLAB simulation platform,the effective characteristics of the magma rock section crystallinity in the study area are studied.Histogram equalization was applied for image enhancement preprocessing.Geometric feature algorithms were used to extract horizontal perimeter,vertical perimeter,and area data to calculate the relative value parameters of granular-ity.The frequency domain algorithm was used to segment the spectral image into circular regions,and the high-frequency data were analyzed and integrated to obtain the high-frequency region parameters.By combining two algorithms and comprehensively extracting 8-dimensional image feature vectors,the crystallization degree and particle size of magmatic rocks are accurately char-acterized.关键词
北京东庄铁矿区/岩浆岩/特征提取/几何特征/频域特征/地质勘查Key words
Beijing Dongzhuang Iron Mine Area/magmatic rocks/feature extraction/geometric features/frequency domain char-acteristics/geological exploration引用本文复制引用
李敏,王婷,王晓红,周嘉林,韩征,张诗檬,许飞青,周捷铭..北京市密云东庄铁矿区岩浆岩断面结晶度特征信息提取方法研究[J].城市地质,2024,19(2):267-273,7.基金项目
北京市自然科学基金项目(8204076)资助 （8204076）
