矿冶工程
礦冶工程
광야공정
Mining and Metallurgical Engineering
2015年
4期
1-4,8
,共5页
采空区%点云数据%预处理%噪声点%数据精简
採空區%點雲數據%預處理%譟聲點%數據精簡
채공구%점운수거%예처리%조성점%수거정간
goaf%point cloud data%preprocessing%noise points%data reduction
依据MDL VS150空区探测仪工作原理及点云数据空间拓扑关系的特点,基于弦高比理论、最大夹角理论及周长比理论,提出一种点云去噪及数据精简的点云数据完整预处理算法和实施流程,并在广西某矿山的空区探测中开展了实际应用。结果表明:该预处理方法在实现去除噪声点、降低点云数据总量的同时,有效保留了采空区边界三维信息的完整性,最终得到的精确空区三维模型与实际情况符合较好,是一种高效可靠的采空区点云数据预处理方法。
依據MDL VS150空區探測儀工作原理及點雲數據空間拓撲關繫的特點,基于絃高比理論、最大夾角理論及週長比理論,提齣一種點雲去譟及數據精簡的點雲數據完整預處理算法和實施流程,併在廣西某礦山的空區探測中開展瞭實際應用。結果錶明:該預處理方法在實現去除譟聲點、降低點雲數據總量的同時,有效保留瞭採空區邊界三維信息的完整性,最終得到的精確空區三維模型與實際情況符閤較好,是一種高效可靠的採空區點雲數據預處理方法。
의거MDL VS150공구탐측의공작원리급점운수거공간탁복관계적특점,기우현고비이론、최대협각이론급주장비이론,제출일충점운거조급수거정간적점운수거완정예처리산법화실시류정,병재엄서모광산적공구탐측중개전료실제응용。결과표명:해예처리방법재실현거제조성점、강저점운수거총량적동시,유효보류료채공구변계삼유신식적완정성,최종득도적정학공구삼유모형여실제정황부합교호,시일충고효가고적채공구점운수거예처리방법。
According to the working principle of MDL VS150 detector and topological spatial relations of point cloud data, a complete set of algorithm for preprocessing point cloud data that combines point cloud denoise with data reduction, was proposed based on the Chord Height Ratio, maximum angle and ratio of perimeters. The application of such preprocessing into the cavity detection for a Guangxi mine showed that the removal of noise points and the reduction of goaf′s point cloud data can be realized with the integrity of 3D information about goaf′s boundary retained. The finally obtained 3D model of cavity is in conformity with the actual situation, indicating such algorithm is an efficient and reliable method for preprocessing goaf′s point cloud data.