Three-dimensional object recognition by Fourier transform profilometry

被引:60
作者
Esteve-Taboada, JJ [1 ]
Mas, D [1 ]
García, J [1 ]
机构
[1] Univ Valencia, Fac Fis, Dept Interuniv Opt, E-46100 Valencia, Spain
关键词
D O I
10.1364/AO.38.004760
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An automatic method for three-dimensional (3-D) shape recognition is proposed. It combines: the Fourier transform profilometry technique with a real-time recognition setup such as the joint transform correlator (STC). A grating is projected onto the object surface resulting in a distorted grating pattern. Since this pattern carries information about the depth and the shape of the object, their comparison provides a method for recognizing 3-D objects in real time. A two-cycle JTC is used for this purpose. Experimental results demonstrate the theory and show the utility of the new proposed method. (C) 1999 Optical Society of America.
引用
收藏
页码:4760 / 4765
页数:6
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