基于距离像位相编码的三维物体识别

Method for 3-D objects recognition base on phase-encoded range images

本文分析了距离像的相位傅立叶变换的原理和特征,研究了生成三维物体定向图的方法,通过计算机模拟实验分析了距离像的相位傅立叶变换用于三维物体识别和定向的性能.生成一种大间隔角度旋转得到的三维物体定向图,通过计算机模拟实验证实能准确的定位物体小角度的旋转方向,表明这种方法具有相当高的物体定向精度。

In this paper the basic theory and characteristics of the Fourier transform of phase - eneoded 3 - D object range image is analysed. The method of the obtaining 3 - D object orientation map is researched. The performance of detection and orientation evaluation of 3 - D object base on phase - encoded range images is analysed by eoraputer simulation . A 3 - D object orientation map is obtained by the Fourier tranaform of phase - encoded 3 D object range - image at large alternation rotations. With the help of computer simulation the capability that sharply determine the small rotations of detected object is eanfinned. which indicates that this method have the high precision in determining the orientation of 3 - D objects.