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基于对应点匹配的物体深度信息测量
引用本文:范秋凤,杨国胜,马晓燕,王应军.基于对应点匹配的物体深度信息测量[J].计算机应用,2006,26(8):1873-1875.
作者姓名:范秋凤  杨国胜  马晓燕  王应军
作者单位:1. 河南大学,先进控制与智能信息处理研究所,河南,开封,475001;安阳工学院,电子信息与电气工程系,河南,安阳,455000
2. 河南大学,先进控制与智能信息处理研究所,河南,开封,475001
基金项目:河南省科技厅自然科学基金;河南省高校杰出科研创新人才工程项目
摘    要:提出了一种基于对应点匹配的物体深度信息测量方法。首先给出了物理图像坐标系与像素坐标系之间的关系;其次,借助于相关法计算两幅图像中目标的相似度,以实现同一目标在不同成像中的匹配;然后从目标几何形状的角点出发,结合对应点的外极线约束条件,提出一种有效的对应点匹配算法,并利用对应点的视差计算基于光轴平行的双摄像机成像的目标深度信息。计算机仿真结果验证了算法的有效性。

关 键 词:立体视觉  图像匹配  相关法  视差  外极线约束
文章编号:1001-9081(2006)08-1873-03
收稿时间:2006-03-06
修稿时间:2006-03-062006-05-12

Depth measurement of the object based on the corresponding points matching
FAN Qiu-feng,YANG Guo-sheng,MA Xiao-yan,WANG Ying-jun.Depth measurement of the object based on the corresponding points matching[J].journal of Computer Applications,2006,26(8):1873-1875.
Authors:FAN Qiu-feng  YANG Guo-sheng  MA Xiao-yan  WANG Ying-jun
Affiliation:1. Institute of Advanced Control and Intelligent Information Processing, Henan University, Kaifeng Henan 475001, China; 2. Department of Electronic Information and Electrical Engineering, Anyang Institute of Technology, Anyang Henan 455000, China
Abstract:A method for measuring the depth of an object was proposed based on the corresponding points matching. Firstly, the transform relation between physics image coordinate system and pixel coordinate system was presented. Secondly, the matching of the same object in two different images was achieved by use of the similarity calculated through the correlation algorithm of two images. Thirdly, from the viewpoint of the comer of the object, a method for matching the corresponding points was presented based on the epipolar restriction of corresponding points. By making use of the disparity of corresponding points, the depth information was computed based on the images that were obtained from the parallel dual cameras. Simulation results demonstrate the effectiveness of this algorithm.
Keywords:stereo vision  image matching  correlation  disparity  epipolar restriction
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