Search - RANSAC Method

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[Books] A_registration_method_applicable_to_outdoor_AR_sys DL : 0: 主要阐述了一种适用于户外AR系统(augmented reality system)的注册方法；利用标记物计算初始结构参数，并确定初始的共面自然特征点集；在后续的运行过程中, 通过相关系数法在相邻的两帧画面中寻找候选匹配自然特征点对；采用了基于标记物提供的共面约束和 RANSAC（RANdom Sample Consensus）算法相结合的方法，从这些候选匹配点中选出满足共面条件的匹配点对；计算这些共面点所对应的单应矩阵(Homography)，进而求解相机的运动参数，完成虚拟物体的注册。该方法特别适合没有显式平面结构的室外环境。 -In this paper, a kind of registration method applicable to outdoor AR system (augmented reality system) is elaborated. The plane marker is employed in calculating initial structure parameter natural features are tracked from the two adjacent frame through correlation and taken as candidate matches. A method Based on the constraint of marker and RANSAC (Random Sample Consensus) is adopted, so that good matches, which satisfy coplanar condition, are selected out of the candidate matches. Through the homographic matrix provided from the coplanar points, we could work out motion parameter of the camera, and finally finish registration of virtual objects. The registration method is most appropriate for outdoor surroundings with obscure plane structure.
Date : 2025-12-22 Size : 807kb User : xiaofang