CAJ | 학술논문

为进一步提高增强现实系统的三维注册精度,分析了磁力跟踪系统误差产生原因,在坐标变换校正法的基础上,提出了一种自适应网格线性插值校正法,对跟踪器进行校正.该方法首先将系统所用的整个三维空间划分为空间网格,再建立磁力坐标与真实坐标的对应表,然后对网格进行自适应重划分,最后利用线性插值法对实时磁力坐标进行校正.对该方法进行了详细的分析说明,进行了相关实验,实验结果表明,该方法能够显著提高增强现实系统的跟踪精确度,使虚实结合更自然.
위진일보제고증강현실계통적삼유주책정도,분석료자력근종계통오차산생원인,재좌표변환교정법적기출상,제출료일충자괄응망격선성삽치교정법,대근종기진행교정.해방법수선장계통소용적정개삼유공간화분위공간망격,재건립자력좌표여진실좌표적대응표,연후대망격진행자괄응중화분,최후이용선성삽치법대실시자력좌표진행교정.대해방법진행료상세적분석설명,진행료상관실험,실험결과표명,해방법능구현저제고증강현실계통적근종정학도,사허실결합경자연.
In order to enhance the accuracy of the registration in augmented reality system, the reasons which cased the error were analyzed, and an approach named linear interpolation in an adaptive grid is proposed based on the method of coordinates system transformation. 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.