测绘工程
測繪工程
측회공정
ENGINEERING OF SURVEYING AND MAPPING
2015年
10期
59-61,76
,共4页
机载激光三维扫描%建筑物%轮廓线%规则化
機載激光三維掃描%建築物%輪廓線%規則化
궤재격광삼유소묘%건축물%륜곽선%규칙화
LiDAR%building%contour%regularization
在点云数据分类和建筑物轮廓提取的基础上,提出一种基于最小外包矩形的建筑物轮廓规则化方法。以任意两相邻轮廓点构建初始外包矩形,以迭代的方式将内点数最多者作为最终外包矩形,继而以面积比率、距离和均方根作为指标对规则化结果给出评判,最后以实际数据进行实验。实验结果表明,文中提出的方法能够有效对分类后的建筑物轮廓点进行规则化。
在點雲數據分類和建築物輪廓提取的基礎上,提齣一種基于最小外包矩形的建築物輪廓規則化方法。以任意兩相鄰輪廓點構建初始外包矩形,以迭代的方式將內點數最多者作為最終外包矩形,繼而以麵積比率、距離和均方根作為指標對規則化結果給齣評判,最後以實際數據進行實驗。實驗結果錶明,文中提齣的方法能夠有效對分類後的建築物輪廓點進行規則化。
재점운수거분류화건축물륜곽제취적기출상,제출일충기우최소외포구형적건축물륜곽규칙화방법。이임의량상린륜곽점구건초시외포구형,이질대적방식장내점수최다자작위최종외포구형,계이이면적비솔、거리화균방근작위지표대규칙화결과급출평판,최후이실제수거진행실험。실험결과표명,문중제출적방법능구유효대분류후적건축물륜곽점진행규칙화。
Based on the classification of point cloud and extraction of building boundary ,a regularization method for building boundary based on Minimum Bounding Rectangle (MBR) is put forward .First the initial bounding rectangle is constructed by two arbitrary adjacent contour points ,of which the optimal one obtaining the most consistent contour points is determined by an iterative manner ,and then the results are evaluated by two criterions :area ratio and RMS of the distance between contour points and its corresponding rectangle side .Finally a sample data is taken as an example to carry out the experiment .The results show the method proposed can regularize the contour points effectively .