像素级多分辨图像融合技术概述

多分辨率图像融合算法是目前常用的图像融合方法,可分为多分辨金字塔融合算法和基于小波变换的融合算法。详细介绍了各类金字塔的演变过程、构成方法和融合规则,并分析了各自的优缺点;还论述了基于小波变换的多分辨率图像融合方法,包括离散小波变换图像融合方法、小波树图像融合方法和小波标架图像融合方法。最后,对这两类融合算法作了比较,证明了该算法比其它方法具有更好的性质。

Pixel-level multiresolution image fusion

The multiresolution image fusion algorithm is commonly used in image fusion process and can be divided into multiresolution pyramid fusion algorithm and wavelet transformation (WT) fusion algorithm. The development, formation and merging rule of various pyramids are introduced in detail. The WT image fusion algorithm is also described, including discrete WT method, WT tree and WT frame. The performances of these two kinds of algorithms are compared at last.;