Research of accurate registration based on magnetic force tracing in AR system
Zhengwei Yao · Jisuanji gongcheng yu sheji · 2009
In order to enhance the accuracy of the registration in augmented reality system,the reasons which cased the error were ana-lyzed,and an approach named linear interpolation in an adaptive grid is proposed based on the method of coordinates system transforma-tion.At first,divided the whole work space into a grid,then constructed a lookup table in which the magnetic coordinates corresponded to the actual coordinates one by one,later on,redivided the grid using an adaptive algorithm,at last,rectified the real-time magnetic coordinates using linear interpolation method.Related experiments are carried out.The results of the experiments show that after the tracker is rectified with the above method,the precision of AR system is improved prominently,consequently to integrate the realty with the virtual scene more naturally.