基于图像融合的水下成像技术  

Underwater imaging technology based on image fusion

作　　者：李代林[1] 朱化凤[1] 裴红艳[1] 

机构地区：[1]中国石油大学物理科学与技术学院,山东东营257061

出　　处：《中国石油大学学报（自然科学版）》2008年第4期157-160,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(40704021)

摘　　要：开发了一种基于偏振成像和图像融合的新型水下成像技术。该技术是利用小波的多尺度和多分辨率特性,将一组偏振方向相互垂直的两幅源图像分别分解后进行加权融合处理,最后利用小波逆变换重构融合后的偏振图像。用图像的均值、标准差、信息熵和方差等参量对融合效果进行了评价。实验和仿真结果表明该方法十分有效,可极大地提高图像质量。A novel underwater imaging technology based on polarization imaging and image fusion was developed. According to the characteristics of mutil-scale and mutil-resolution of wavelet transform, the technology can be applied to decompose a pair of ortbogonally polarized images into basic blocks respectively, and then to fuse the wavelet coefficients to finally obtain the fused image by inverse wavelet transform. The fused images were evaluated by calculating the mean, standard variation, information entropy and variance to quantitatively examine the method. The results from experiments and simulations show that this method is effective and may improve the image quality substantially.

关 键 词：偏振成像 小波变换 图像融合 水下物体 

分 类 号：TN249[电子电信—物理电子学] TN248.4