摘要
提出了一种增强现实中虚实结合的新方法.首先研究了一种两帧相邻图像的快速点对应方法;在准确对应的前提下,大大提高了对应的速度.在此基础之上,研究了基于平面结构的虚实结合方法;通过计算表示虚实坐标之间关系的单应矩阵,可以得到任意一帧虚实坐标之间的单应矩阵,实现了虚实结合和虚拟物体的动态跟踪.所提方法简单、方便,对于虚拟物体的注册误差较低.
A new method is proposed for virtual and real object correspondence in augmented reality. A fast point correspondence method for two adjacent images is studied, which can greatly improve the correspondence accuracy and speed in the condition of correct correspondence. Then a virtual and real object correspondence method based on planar structure is studied. Homography matrix between virtual and real coordinates of any frame can be obtained after the homography matrix between virtual and real coordinates is calculated. With this method, the virtual and real objects can be combined and the virtual objects can be dynamically tracked. The presented method is simple and convenient, and has a lower error in virtual object registration.
出处
《机器人》
EI
CSCD
北大核心
2008年第6期561-565,共5页
Robot
基金
国家青年自然科学基金资助项目(60603076)
上海市科委自然科学基金资助项目(07ZR14035)
国家863计划资助项目(2007AA01Z316)
上海市青年科技启明星计划资助项目(08QA14025)
关键词
增强现实
平面结构
单应矩阵
注册
augmented reality
planar structure
homography matrix
registration
