一种改进的广角镜头数字图像畸变校正算法  

An Improved Distortion Correction Algorithms for Wide-angle Lens Digital Image

作　　者：周游[1] 张剑[1] 周少武[1] 王维 

机构地区：[1]湖南科技大学信息与电气工程学院,湖南湘潭411201 [2]深圳市优威视讯科技有限公司,广东深圳518000

出　　处：《计算技术与自动化》2015年第3期92-95,共4页Computing Technology and Automation

基　　金：国家自然科学基金项目(51374107;51275169);湖南省自然科学基金项目(13JJ8014);湖南省科技厅科技计划项目(20012FJ4112)

摘　　要：针对广角镜头数字图像产生的严重桶形畸变的问题,提出两种改进的畸变校正的算法。已有的彩色数字图像畸变校正都先将彩色图像转化为灰度图像后再进行图像的畸变校正,使得图像无法还原到原来的彩色信息。提出的非线性模型法及等效球面法直接采用原始数据图像进行校正,数字仿真实例和实验结果证明了本文算法优于已有文献的结果。Aiming at the serious barrel distortion problem of wide-angle lens digital image,this paper put forward two Improved Distortion Correction Algorithms.The distortion Correction Algorithms in literature are divided into two steps：the first step is to change color image to grayscale,and the second step is to correct image distortion,but these methods can ＇t restore the original color information of image.The nonlinear model method and equivalent spherical method proposed in this paper use the original data of image.The numerical simulation examples and experiment results were given to illustrate the superiority of the obtained results to those in literature.

关 键 词：桶形畸变 非线性模型法 等效球面法 DSP 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]