测绘科学技术学报2012，Vol.29Issue(3)：204-208,5.DOI:10.3969/j.issn.1673-6338.2012.03.012
基于非下采样Contourlet变换的遥感影像融合
Fusion of Remote Sensing Image Based on Nonsubsampled Contourlet Transform
张一平 1龚志辉 1胡玲 1王鹏1
作者信息
- 1. 信息工程大学测绘学院,河南郑州 450052
- 折叠
摘要
Abstract
According to the characteristics of nonsubsampled contourlet transform, a algorithm of remote sensing image fusion which is based on the combination of nonsubsampled contourlet transform and 1HS transform was proposed. Firstly, the nonsubsampled contourlet transform is done separately with the panchromatic image and the multi-spectral image's intensity component which came from the IHS transform; then the high and low frequency coefficients are fused separately by using different fusion strategies: the low frequency coefficient is fused by the regional energy weighted method, while the high frequency coefficient was fused by using the principle of eight neighborhood gradient priority; finally the target image is obtained by performing inverse nonsubsampled contourlet transform and inverse IHS transform. The experimental results showed that: the proposed method could improve the spatial resolution of the fusion image, and at the same time, it could keep the image's spectral quality better.关键词
影像融合/非下采样Contourlet变换/IHS变换/融合策略/空间分辨率/光谱质量Key words
image fusion/ nonsubsampled contourlet transform/ IHS transform/ fusion strategy/ spatial resolution/ spectral quality分类
天文与地球科学引用本文复制引用
张一平,龚志辉,胡玲,王鹏..基于非下采样Contourlet变换的遥感影像融合[J].测绘科学技术学报,2012,29(3):204-208,5.
