增强现实系统中虚拟与现实信息空间视觉匹配的算法研究

Algorithmic research on virtual-real matching on the vision in augmented reality

本文在对相机成像原理研究的基础上,通过一台数码相机从不同方向拍摄的两幅或两幅以上二维图像,实现实际空间坐标和数码相机像平面坐标的透视变换,建立现实空间坐标系与像素坐标系之间的变换关系,并推导出通过相机校准来确定相机参数的数学过程。通过这个算法可以解决虚实的视觉匹配问题,为增强现实系统提供基本支持。最后还通过实验验证算法的正确性。

In this paper,based on the research of the elements of photograph,it is able to accomplish the perspective transition between real space and image plane coordinate.The direct relationship between real space and pix plane coordinate is established.Moreover,the mathematic procedure to identify the parameters of camera by camera calibration is derived.This algorithm can accomplish virtual-real registration on the vision as the basis of augmented reality system.Finally the algorithm is tested for its validation.