一种新颖的多视点图像规正算法  

Novel multi-view images correction algorithm

作　　者：孙炯[1] 邵枫[2] 陈偕雄[2] 

机构地区：[1]浙江大学宁波理工学院,浙江宁波315100 [2]浙江大学信息与电子工程学系,杭州310027

出　　处：《计算机工程与应用》2007年第17期50-52,93,共4页Computer Engineering and Applications

摘　　要：在多视点图像系统中,由于场景光照或相机标定的原因,通常会导致同一对象在不同视点位置颜色外表的不一致。传统的亮度补偿算法难以有效地解决这个问题。基于Retinex颜色恒常性理论,提出了一种新颖的多视点图像规正算法,通过直方图均衡化、Retinex处理和颜色恢复手段,提取出反映物体本质特征的反射光系数来消除不一致光照的影响,在增强单视点图像对比度的同时,将视点间图像的颜色规正到一致的水平。Because of scene illumination or camera calibration,the color appearance of the same object between different view-points will be different in multi-view images system.Tradition illumination compensation algorithm for image is unable to solve this problem effectively.ln this paper,a novel multi-view images color correction algorithm is proposed based on retinex color constancy theory.Histogram equalization,retinex processing and color restoration are performed for multi-view images,and extract reflectance which describe object intrinsic properties to eliminate un-consistent light source influence.The experimental results show that corrected images not only have high color contract,also have consistent color appearance with others.

关 键 词：图像规正 颜色恒常性 RETINEX 直方图均衡化 颜色恢复 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]