基于结构照明的三维物体识别新方法

New Method for 3D Object Recognition Based on Structure Illumination

提出了一种三维物体的识别方法。将一正弦条纹分别投影到参考物体和待测表面,摄像机得到的是2幅有变形条纹的二维强度像。参考的变形条纹图像和待识别的变形条纹图像,经过联合变换相关(JTC),得到自相关和互相关输出,最后根据输出的相关峰大小即可判别不同的物体。这种相关识别方法的实质是通过结构照明的方法,构造一个新的识别复函数,物体的高度分布以复函数位相的形式编码于新的识别复函数之中,因此该方法具有本征三维识别的特点。计算机模拟实验证明了这种方法用于三维物体识别的可能性。

A new method of 3D object recognition was proposed.Sine fringes were projected to the surface of reference object and target object respectively.Autocorrelation and cross correlation were obtained by joint transform correlation(JTC) of two deformed images.The method has the characteristic of intrinsic 3D recognition.