A Remote Sensing Image Fusion Algorithm Based on à trousContourlet Transformation
LUO Li 1, YUAN Zhen2, WANG Ke1
1.College of Communication Engineering, Jilin University, Changchun 130025 2.Institute of Computer and Information, Hefei University of Technology, Hefei 230009
Abstract A new algorithm is developed which merges a highresolution images and multispectral images based on the à trousContourlet transform. First, à trousContourlet transform is presents based on the advantages of à trous wavelet transform and Contourlet transform. Then the images to be merged are decomposed by multiresolution based on the IHS transform and à trousContourlet transform. According to the high frequency information, a new algorithm of weighted average is proposed according to its deviation and collection coefficient. Finally, the image is fused by high frequency addition. The experimental results show that better fusion result by the proposed method is acquired compared with the traditional transform methods.
[1] Choi M, Kim R Y, Nam M R, et al. Fusion of Multispectral and Panchromatic Satellite Image Using the Curvelet Transform. IEEE Geoscience and Remote Sensing Letters, 2005, 2(2): 136140 [2] Li H, Manjunath B S, Mitra S K. Multisensor Image Fusion Using the Wavelet Transform. Graphical Models and Image Processing, 1995, 57(3): 235245 [3] Santos M, Pajares G, Porteta M, et al. A New Wavelets Image Fusion Strategy // Adam N R, ed. Lecture Notes in Computer Science. Berlin, Germany: SpringerVerlag, 2003, 2652: 919926 [4] Nunez J, Otazu X, Fors O, et al. MultiresolutionBased Image Fusion with Additive Wavelet Decomposition. IEEE Trans on Geosciences and Remote Sensing, 1999, 37(3): 12041211 [5] Do M N, Vetterli M. The Contourlet Transform: An Efficient Directional Multiresolution Image Representation. IEEE Trans on Image Processing, 2005, 14(12): 20912106 [6] Liang Qiusheng, Kong Lingfu. Construction of Wavelet with MultiDirectional Selectivity. Acta Electronica Sinica, 2005, 33(10): 19051909 (in Chinese) (练秋生,孔令富.具有多方向选择性的小波构造.电子学报, 2005, 33(10): 19051909) [7] Jiao Licheng, Tang Shan. Development and Prospect of Image Multiscale Geometric Analysis. Acta Electronica Sinica, 2003, 31(Z1): 19751981 (in Chinese) (焦李成,谭 山.图像的多尺度几何分析:回顾和展望.电子学报, 2003, 31(Z1): 19751981) [8] Ranchin T, Aiazzi B, Alparone L, et al. Image Fusion-The ARSIS Concept and Some Successful Implementation Schemes. ISPRS Journal of Photogrammetry and Remote Sensing, 2003, 58(1/2): 418 [9] Li Guangxin, Wang Ke, Zhang Libao. Computationally Efficient Algorithm of Multiresolution Image Fusion with Weighted Average Fusion Rule. Journal of Image and Graphics, 2005, 10(12): 15291536 (in Chinese) (李光鑫,王 珂,张立保.加权多分辨率图像融合的快速算法.中国图象图形学报, 2005, 10(12): 15291536) [10] Li Huihui, Guo Lei, Liu Hang. A RegionBased Remote Sensing Image Fusion Method. Acta Photonica Sinica, 2005, 34(12): 19011905 (in Chinese) (李晖晖,郭 雷,刘 航.基于区域分割的遥感图像融合方法.光子学报, 2005, 34(12):19011905)
2007, Vol. 20 
