湖南大学学报（自然科学版）2009，Vol.36Issue(5)：85-88,4.
增强现实中的多层次遮挡算法
Multi-layer Occlusion Algorithm in Augmented Reality System
摘要
Abstract
An improved occlusion detection algorithm based on geometry stereo matching was put forward to increase the occlusion detecting speed, the accuracy and the robustness in the augmented reality system.The occlusion relation was judged by the relation of virtual and real points' projection positions on the stereo images.By skipping the deepness calculation, a faster detecting speed was achieved.By selecting virtual edge points with obvious feature on mesh contour to do detecting computation, higher occlusion detecting accuracy was obtained.And according to the property that the display status is spatio-temporal piecewise-constant, a status combining model based on artificial neural network has been proposed to improve the robustness.Experiment results have proved that this algorithm can realize real-time, reliable and multi-layer occlusion detection in augmented reality system.关键词
增强现实/遮挡检测/立体匹配Key words
augmented reality/occlusion detection/stereo matching分类
信息技术与安全科学引用本文复制引用
张金玲,贾庆轩,孙汉旭,刘亚辉..增强现实中的多层次遮挡算法[J].湖南大学学报（自然科学版）,2009,36(5):85-88,4.基金项目
国家自然科学基金资助项目(60803103)和国家863计划资助项目(2007AA01Z329) （60803103）
