条纹投影动态三维表面成像技术综述

对条纹投影动态三维表面成像技术进行了总结,分析了典型方案的特点。首先介绍了该技术的基本原理,包括系统基本结构、三维表面成像原理及相移法和傅立叶变换法这两种典型的相位提取方法。接着介绍了动态成像方案,包括高速投影方案和采用速度相对低的相机进行动态三维表面成像的方案。然后介绍了动态三维成像中绝对相位获取方法,主要是模拟和数字编码法及区域统计特性编码法。最后介绍了高精度动态相位测量方案。

Review of dynamic three-dimensional surface imaging based on fringe projection

The dynamic three-dimensional(3D) surface imaging technology based on fringe projection was summarized and the characteristics of typical strategies were analyzed. Firstly, the basic principle of the technique was introduced, including the basic structure of the system, the principle of 3D surface imaging, and the two typical phase extraction methods, phase shifting method and Fourier transform method. Secondly, the dynamic imaging scheme including high speed projection scheme and dynamic 3D surface imaging method using relatively low speed camera was introduced. Thirdly, the absolute phase acquisition methods in dynamic 3D image were introduced, mainly analog and digital coding and area statistical coding, were introduced. Finally, the methods of accurate dynamic phase measurement were introduced.