摘要
遮挡一致性是增强现实中实现虚实融合的重要方面,正确处理虚实物体的遮挡关系,对实现遮挡一致性和增强真实感具有重要意义。介绍了增强现实应用中存在的虚实遮挡问题,把现有的虚实遮挡方法分为基于深度计算、基于模型重建和前后关系不变三类方法,总结了各类方法的基本原理和有代表性的研究工作,并且详细比较了各类方法的优缺点和适用范围。最后,根据实际应用中存在的问题和挑战,展望了增强现实中虚实遮挡方法的研究方向。
Occlusion consistency plays an important role in merging virtual objects into real scenes for augmented reality. Correct occlusion handling is of great importance for both occlusion consistency and high realism of augmented reality. Mutual occlusion among virtual and real objects in augmented reality was introduced firstly. Then the taxonomy of existing occlusion handling methods was proposed And existing occlusion handling methods consisted of depth-based method, model-based method and spatial-fixedness method Relevant fundamental principles and typical algorithms were concluded, and their advantages, disadvantages and applicable scopes were compared in detail Finally, according to existing problems and challenges in actual applications, future research trends of occlusion handling were foreseen.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2014年第1期1-10,共10页
Journal of System Simulation
基金
国家自然科学基金(60970105
61173173)
山东省住房和城乡建设厅科技项目(2011YK060)
山东省高等学校科研计划(J11LG12)
关键词
增强现实
遮挡一致性
虚实遮挡
深度图
模型重建
图形处理器
评述
augmented reality
occlusion consistency
occlusion
depth map
three-dimensional model reconstruction
graphics processing unit
review
