计算机科学 ›› 2019, Vol. 46 ›› Issue (6A): 205-207.

• 模式识别与图像处理 • 上一篇    下一篇

基于深度特征的足底曲面三角剖分重构

孟文权, 武利生   

  1. 太原理工大学机械工程学院 太原030024
  • 出版日期:2019-06-14 发布日期:2019-07-02
  • 作者简介:孟文权(1993-),男,硕士,主要研究方向为机电一体化;武利生(1972-),男,博士,副教授,主要研究方向为机电一体化。
  • 基金资助:
    本文受国家自然科学基金(51675364)资助。

Triangulation Reconstruction of Plantar Surface Based on Depth Feature

MENG Wen-quan, WU Li-sheng   

  1. College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan 030024,China
  • Online:2019-06-14 Published:2019-07-02

摘要: 三维重构可理解为曲线曲面的拟合,以三角剖分为特点的复杂曲面被广泛应用。文中提出一种基于点云深度特征的细节三角剖分方法,详细介绍了以线激光扫描为基础的足底点云数据的重构过程。首先,对带状数据点分段处理,设定阈值补充漏点,删除无用段;接着,以8-邻接域法为主寻找边界点,并排序连接构成闭合曲线;其次,对带状数据点进行Savitzky-golay滤波;最后,根据数据二维网格形式的拓扑关系构建四边形网络,并使用提出的细节三角剖分方法进行面片分割。实验表明,给出的曲面重构方法响应迅速,展示的边界与内部细节特征明显。

关键词: 凹凸点, 曲率特征, 三角剖分, 三维重构, 深度图像

Abstract: 3D reconstruction can be understood as the fitting of curves and surfaces,and the complex surfaces characteri-zed by triangulation is widely applied.This paper proposed a detail triangulation method based on depth feature of point cloud.The reconstruction method of foot point cloud data based on line laser scanning was introduced in detail.First,the strip data points are segmented by piecewise processing,the threshold is setted to supplement the leakage points and delet the useless segments.Then,the 8-adjacency domain method is used to find the boundary points and to sort the closed curves,and the band data points are filtered by Savitzky-golay.Finally,the basis is based on the method of filtering the banded data points.The topological relationship of two-dimensional mesh forms a quadrilateral network,and the detail triangulation method is used to segment the faces.Experiments show that the method of surface reconstruction is fast,and the boundary and internal details are obvious.

Key words: 3D reconstruction, Concavo convex point, Curvature feature, Depth image, Triangulation

中图分类号: 

  • TP391
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