基于IHS的高通滤波法影像融合研究  

Study on High Pass Filter Method for Image Fusion Based on IHS

作　　者：杜艺[1] 龚循平[1] 林祥国[1,2] 

机构地区：[1]中国测绘科学研究院,北京100039 [2]武汉大学资源与环境学院,湖北武汉430079

出　　处：《测绘与空间地理信息》2010年第5期144-146,151,共4页Geomatics & Spatial Information Technology

摘　　要：在分析IHS法和高通滤波法图像融合算法优缺点的基础上,提出了一种基于IHS变换的高通滤波影像融合方法。该算法先对多光谱图像IHS变换的I分量进行低通滤波,然后对与I分量进行直方图匹配的全色图像进行高通滤波,接着合成低通滤波和高通滤波的结果作为新的I分量,最后进行IHS逆变换得到融合图像。通过与IHS法与高通滤波法的融合结果进行对比评价,表明了该方法在保持光谱信息上和提高多光谱的空间信息能力上都有很好的效果。After analyzing the advantages and disadvantages of the theory and algorithms of IHS method and high pass filter method,this paper put forward a high pass filter method for image fusion based on IHS transformation.The algorithm first filtered the component I obtained by IHS transforming of multi-spectral image by low pass filter and filtered the component I obtained by histogram matching of panchromatic image by filtering high pass filter,then fused the results of low pass filter and high pass filter to form a new component I and reconstructed the merged image after IHS inversion.After comparing and evaluating on the fusion result of IHS method and high pass filter method,it showed that the algorithm was more efficient in preserving spectral information and improving spatial information of multi-spectrum.

关 键 词：IHS变换 高通滤波 图像融合 光谱保持 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]