Surface point cloud directed normal vector correction method and device

The invention provides a surface point cloud directed normal vector correction method and apparatus. The method comprises the steps of obtaining an initial normal vector of each point in a point cloud based on a principal component analysis method; calculating the total repulsive interaction of each...

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Bibliographische Detailangaben
Hauptverfasser: DING TING, DENG BINFENG, ZHAN HENGRUI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a surface point cloud directed normal vector correction method and apparatus. The method comprises the steps of obtaining an initial normal vector of each point in a point cloud based on a principal component analysis method; calculating the total repulsive interaction of each point by using the repulsive interaction between the points in the point cloud, and determining the actual direction of the normal vector of each point in the point cloud; and for each point in the point cloud, adjusting the initial normal vector according to the actual direction of the normal vector to obtain an adjusted first normal vector. According to the method, the problem of inaccurate normal vector can be solved under the conditions of rich object surface details, violent curvature change, large illumination change and the like, and the accuracy of point cloud processing is improved. 本公开提供了一种表面点云有向法向量的校正方法及装置,方法包括:基于主成分分析法获取点云中各个点的初始法向量;利用点云中各个点之间的排斥作用,计算出各个点受到的总排斥作用,确定所述点云中各个点的法向量的实际指向;针对所述点云中的每个点,根据法向量的实