林业机械与木工设备
林業機械與木工設備
임업궤계여목공설비
FORESTRY MACHINERY & WOODWORKING EQUIPMENT
2014年
9期
37-41,47
,共6页
刘俊焱%云挺%周宇%薛联凤
劉俊焱%雲挺%週宇%薛聯鳳
류준염%운정%주우%설련봉
激光扫描仪%点云数据%曲面拟合%移动最小二乘法%Delaunay三角剖分
激光掃描儀%點雲數據%麯麵擬閤%移動最小二乘法%Delaunay三角剖分
격광소묘의%점운수거%곡면의합%이동최소이승법%Delaunay삼각부분
terrestrial laser scanner%point cloud data%curve surface fitting%moving least squares%Delaunay triangulation
利用地面激光扫描仪获取户外树木的大量点云数据，从中截取树叶点云数据并以此进行曲面拟合，构建树叶真实的三维模型。主要针对空间散乱点云数据的曲面拟合方法进行研究，并利用Delaunay三角剖分构建树叶三维模型。在移动最小二乘法的二维曲面拟合方法基础上，针对空间散乱点云数据，提出了新的曲面拟合方法。通过移动最小二乘法对点云数据曲面拟合，得到了理想的效果后再利用三角剖分重建叶面三维模型。
利用地麵激光掃描儀穫取戶外樹木的大量點雲數據，從中截取樹葉點雲數據併以此進行麯麵擬閤，構建樹葉真實的三維模型。主要針對空間散亂點雲數據的麯麵擬閤方法進行研究，併利用Delaunay三角剖分構建樹葉三維模型。在移動最小二乘法的二維麯麵擬閤方法基礎上，針對空間散亂點雲數據，提齣瞭新的麯麵擬閤方法。通過移動最小二乘法對點雲數據麯麵擬閤，得到瞭理想的效果後再利用三角剖分重建葉麵三維模型。
이용지면격광소묘의획취호외수목적대량점운수거，종중절취수협점운수거병이차진행곡면의합，구건수협진실적삼유모형。주요침대공간산란점운수거적곡면의합방법진행연구，병이용Delaunay삼각부분구건수협삼유모형。재이동최소이승법적이유곡면의합방법기출상，침대공간산란점운수거，제출료신적곡면의합방법。통과이동최소이승법대점운수거곡면의합，득도료이상적효과후재이용삼각부분중건협면삼유모형。
A large quantity of point cloud data of outdoor trees are obtained by a terrestrial laser scanner(TLS),with leaf-related point cloud data intercepted from it for blade curve surface fitting and real 3D model construction. The curve surface fitting method for point cloud data scattered in space is mainly studied,and Deluanay triangulation is used to construct a three-dimensional model. Based on the two-dimensional curve surface fitting method of moving least square,in view of the point cloud data scattered in space,a new curve surface fitting method is presented. Through the curve surface fitting of point cloud data based on moving least square,a lead 3D model is reconstructed using Deluanay triangulation after a desired result is obtained.
