电磁跟踪器在立体投影虚拟环境中的注册

提出一种6自由度电磁方位跟踪器在墙幕式立体投影虚拟环境中的注册方式. 将跟踪传感器以一定姿态置于空间中已知点处,根据其在虚拟环境屏幕坐标系和电磁跟踪系统坐标系中的方位输出值,确定两坐标系之间的变换矩阵,实现跟踪器的注册,从而可实时将跟踪传感器的方位输出值转化为在屏幕坐标系中的方位值,实现了虚实世界的融合. 实验结果证明,该注册方式简单、可行,注册偏差在10mm内,精度满足基于自然交互的多感知虚拟现实系统操作要求.

Registration of Electromagnetic Tracker for Projective Stereoscopic Virtual Environment

An approach to registering 6-DOF electromagnetic tracker for stereoscopic virtual environment is proposed.To put tracking sensor with certain posture at a known point in real space,its position and orientation values in screen coordinate system and electromagnetic tracker coordinate system are caught.According to the values,the transformation matrix between these two systems can be calculated.Then the registration is realized,and the outputs of tracker can be transformed into coordinate values in screen coo...