Novel method for merging panchromatic and multi-spectral images based on sensor spectral response

doi:10.11834/jrs.20090113

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Novel method for merging panchromatic and multi-spectral images based on sensor spectral response
Vol. 13, Issue 1, Pages: 97-102(2009)
Published：2009
DOI： 10.11834/jrs.20090113
稿件说明：

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[1]徐佳,关泽群,何秀凤,胡俊伟.基于传感器光谱特性的全色与多光谱图像融合[J].遥感学报,2009,13(01):97-102. DOI： 10.11834/jrs.20090113.

Novel method for merging panchromatic and multi-spectral images based on sensor spectral response[J]. Journal of Remote Sensing, 2009, 13(1): 97-102. DOI： 10.11834/jrs.20090113.

摘要

提出了一种基于传感器光谱特性的全色与多光谱影像融合方法。该方法主要基于快速IHS融合方法的思想

在充分考虑各波段成像传感器的相对光谱响应的基础上

对强度分量的构造和空间细节信息的注入方式2个方面进行了改进。改进后的方法有效地改善了光谱畸变问题

且能同时对所有的光谱波段进行融合。分别对IKONOS、ETM+影像进行融合实验

结果表明该方法在光谱信息损失最少的情况下

较大地提高了影像的空间分辨率

与其他方法相比具有更好的综合性能。

Abstract

For most of the traditional image fusion methods

the spectral distortion of the fused images is a common problem.The major reason relates closely to the different spectral characteristics of sensors.In this paper

a novel spectral preservation fusion method for remotely sensed images is presented by considering the spectral characteristics of sensors.The method is mainly based on the fast IHS transform.After analyzing the spectral response of the multispectral and panchromatic sensors

the IHS fusion method has been improved in two parts:the construction of intensity component and the injection method of detail information.In the proposed method

the spectral distortion is reduced significantly and all the multispectral bands can be fused at the same time.To evaluate the performance and efficiency of the proposed method

two experiments are carried out on IKONOS and ETM+ images respectively.The results show that the proposed method is better than other methods.It can keep almost the same spatial resolution as the panchromatic images and minimize color distortion.