Pattern-Based Algorithm for Registration of Virtual and Real Objects
一种基于平面模板的虚实配准算法

Registration of virtual and real objects is a crucial technology for augmented reality. Because pattern-based algorithm has less operation cost, the method has been used widely in augmented reality. Homography is a mapping relation existing in the pattern-based registration. It has been employed to build the 3D transformation from pattern coordinate to camera coordinate and the 3D-2D transformation from camera coordinate to project coordinate in this paper. As a simple proportional relation, homography cuts back the operation cost. Moreover, it solves the problem of manual calibration. After elaborating the registration course, registration optimization has been further discussed in the paper. The best homography will be selected from several computed results in order to enhance the robustness of registration. The optimization ensures that registration succeeds with partial mark points occluded.