多投影面显示系统亮度均衡的实现  

Realization of Intensity Balancing for Multi-projector Display System

作　　者：贾庆轩[1] 阮瑞卿[1] 孙汉旭[1] 宋荆洲[1] 张号[1] 

机构地区：[1]北京邮电大学虚拟技术研究中心,北京100876

出　　处：《系统仿真学报》2006年第z2期478-482,共5页Journal of System Simulation

基　　金：新世纪优秀人才计划资助(NCET-05-0115);北京市自然科学基金资助(3062014)。

摘　　要：由多个投影面形成的大屏幕显示系统存在诸如不同的投影机之间的亮度响应不一致、拼接重叠区的高亮带以及同一个投影面内的亮度差异等亮度不平衡的问题。针对这些问题,分别采用了直接逼近、二次曲线衰减及μ比例修正算法和相应的实现方法,对这类显示系统的投影面间的亮度匹配、边缘融合以及投影面内的亮度均衡进行实现,并提出亮度偏差对均衡效果进行衡量。Large-scale display system based on multi-projectors can provide highly immersive virtual environment. But the problems of intensity response nonuniformity between each projector, the high brightness in the overlap regions and the intensity difference within a projection can be annoying. To address these problems, different luminance attenuation algorithms were proposed, such as direct approach, conic attenuation and proportion correction. These algorithms can realize inter-projector intensity matching, edge blending and intra-projector intensity balancing. Finally, luminance deviation was proposed to weigh the luminance balance effect.

关 键 词：多投影显示 亮度匹配 边缘融合 亮度均衡 亮度偏差 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]