计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (17): 50-52.

• 学术探讨 • 上一篇    下一篇

一种新颖的多视点图像规正算法

孙 炯1,邵 枫2,陈偕雄2   

  1. 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
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-11 发布日期:2007-06-11
  • 通讯作者: 孙 炯

Novel multi-view images correction algorithm

SUN Jiong1,SHAO Feng2,CHEN Xie-xiong2   

  1. 1.Ningbo Institute of Technology,Zhejiang University,Ningbo,Zhejiang 315100,China
    2.Department of Information and Electronics Engineering,Zhejiang University,Hangzhou 310027,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-11 Published:2007-06-11
  • Contact: SUN Jiong

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。

关键词: 图像规正, 颜色恒常性, Retinex, 直方图均衡化, 颜色恢复

Abstract: Because of scene illumination or camera calibration,the color appearance of the same object between different viewpoints will be different in multi-view images system.Tradition illumination compensation algorithm for image is unable to solve this problem effectively.In 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.

Key words: image correction, color constancy, Retinex, histogram equalization, color restoration