多投影显示墙的几何校正技术综述  

Survey on the Geometric Calibration of the Multi-projector Display Wall

作　　者：周志光[1,2] 汪国锋 林海[2] 

机构地区：[1]浙江财经大学信息学院,杭州310018 [2]浙江大学CAD&CG国家重点实验室,杭州310058 [3]浙江省福利彩票发行中心,杭州310000

出　　处：《小型微型计算机系统》2015年第5期1091-1097,共7页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61303133)资助;浙江省公益技术研究工业项目(2014C31057)资助;浙江大学CAD&CG国家重点实验室开放课题项目(A1417)资助;国家“八六三”高技术研究发展计划项目(2012AA12A404)资助

摘　　要：几何校正技术作为多投影显示墙系统的基础环节和核心技术之一,已经成为近年来的一个研究热点.首先对比并且论述了机械校正技术的不足以及软件校正技术的优势,然后以解决多投影显示墙系统中透镜扭曲问题为主线,将当前的多投影显示墙几何校正技术归纳为如下三类:线性校正技术、分段线性校正技术和非线性校正技术,并分别对三类技术中不同算法的适用范围、优势及其所存在的局限性进行了深入的分析和讨论,在此基础之上,对多投影显示墙几何校正技术的未来发展趋势进行了展望.The geometric calibration is one of the fundamental processes and key techniques in the system of multi-projector display wall, and it has become a new hotspot as a challenging research. This paper firstly compared and discussed the advantages of the geometric calibration based on software and the deficiency of the geometric calibration based on mechanism. Secondly, we took the development of the methods for solving the lens distortion as a thread to classify current techniques into three categories：linear calibration, piecewise linear calibration and non-linear calibration. In addition, we presented an in-depth comparison of the three categories of methods, especially the scope of application, advantages and disadvantages of each geometric calibration technique. Finally, the potential directions of research on the geometric calibration of multi-projector display wall were proposed based on the discussion above.

关 键 词：几何校正 透镜扭曲 线性校正 分段线性校正 非线性校正 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]