三维注册技术是增强现实系统研究的一个重要方面.现有的增强现实技术三维注册方法都是用平面标志来作为定位基准的,且系统构造较复杂,图象处理所需计算量较大,还会因此引入误差.该文提出了一种使用立体标志物的基于视觉的三维注册方法.该方法只需要一个彩色CCD摄像机就可以完成三维环境注册,并且不需要进行复杂的图象处理运算.这种新方法能够有效简化注册系统和算法,并且能消除使用多个传感器的配合误差.

Augmented reality AR is a technology in which a user's view of the real world is enhanced or augmented with additional information generated from a computer model. One of the key issues in the implementation of augmented reality is the registration problem. Synthetically,vision-based registration can offer superior solutions. In several existing registration methods, 2-D objects or pictures are used as positioning fiducials, and at least two cameras and/or separate tracking subsystems are needed. In this paper, a new registration method is proposed which uses a solid fiducial and a single color CCD camera. The new method significantly simplifies the registration system and algorithm, and coordination errors are eliminated. The algorithm requires little computation and can be easily realized in real time without latency.