多投影仪Alpha融合的后期Gamma校正  

THE GAMMA CORRECTION FOR MULTIPLE PROJECTORS AFTER ALPHA BLENDING

作　　者：杨国平[1] 陈福民[1] 

机构地区：[1]同济大学计算中心,上海200092

出　　处：《计算机应用与软件》2009年第1期232-233,共2页Computer Applications and Software

摘　　要：大屏幕投影的应用中往往使用多台投影仪拼接,投影图像之间的融合程度,历来是评价拼接效果的重要标准。在分析传统Alpha融合拼接技术基础上,对投影仪投射阶段亮度非线性变化的校正进行了分析,并对Gamma校正方法在投影仪拼接中的使用作了探索。More than one projector is frequently used for large scale screen application. The blending effect of images from separate projectors has always been the crucial criteria of the application. Based on the analysis of traditional Alpha blending method, in this article it analyzes the correction method for nonlinear brightness changes in projecting phase of the projector and gropes the application of Gamma Correction in projectors＇image splicing.

关 键 词：无缝拼接 非线性 GAMMA校正 

分 类 号：TP317[自动化与计算机技术—计算机软件与理论] TN946.1[自动化与计算机技术—计算机科学与技术]