计算机与现代化 ›› 2011, Vol. 1 ›› Issue (11): 64-3.doi: 10.3969/j.issn.1006-2475.2011.11.017

• 图像处理 • 上一篇    下一篇

一种变形表面的三维测量方法

史金龙1,2,刘庆华1   

  1. 1.江苏科技大学计算机科学与工程学院,江苏 镇江 212003; 2.复旦大学计算机科学技术学院,上海 200433
  • 收稿日期:2011-07-18 修回日期:1900-01-01 出版日期:2011-11-28 发布日期:2011-11-28

A 3D Reconstruction Method for Deformable Surface

SHI Jin-long1,2, LIU Qing-hua1   

  1. 1.School of Computer Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;2. School of Computer Science and Technology, Fudan University, Shanghai 200433, China
  • Received:2011-07-18 Revised:1900-01-01 Online:2011-11-28 Published:2011-11-28

摘要:

提出一种新的利用标定图像进行三维测量的方法。利用SIFT算法找到初始的对应点,然后根据这些点生成三维空间中的种子点,再以这些种子点为中心,向外区域增长,直到完成整个物体表面测量。在每次增长的过程中,需要计算增长的三维空间平面在两个相机上的投影之间的图像相关系数。图像相关系数较大时认为是正确的增长,否则是错误的增长。实验证明,使用该方法能够得到很好的三维测量结果。

关键词: 表面, 种子点, 区域增长, 图像相关系数, 三维测量

Abstract:

This paper presents a novel method of 3D reconstruction from calibrated images. With this method, firstly, initial corresponding points are found by using SIFT, secondly, 3D points are generated as seed points, thirdly, region growing is implemented according to these seed points until the whole surface is reconstructed. During the process of region growing, image correlation of the projected patches in two images is calculated. If the image correlation is bigger than a threshold, the growing is considered as a right one; otherwise the growing will be rejected. The performance and effectiveness are evaluated by experiments.

Key words: surface, seed points, region growing, image correlation, 3D reconstruction