Multi-spectral image fusion method based on two channels non-separable wavelets

A construction method of two channels non-separable wavelets filter bank which dilation matrix is [1, 1; 1, −1] and its application in the fusion of multi-spectral image are presented. Many 4×4 filter banks are designed. The multi-spectral image fusion algorithm based on this kind of wavelet is proposed. Using this filter bank, multi-resolution wavelet decomposition of the intensity of multi-spectral image and panchromatic image is performed, and the two low-frequency components of the intensity and the panchromatic image are merged by using a tradeoff parameter. The experiment results show that this method is good in the preservation of spectral quality and high spatial resolution information. Its performance in preserving spectral quality and high spatial information is better than the fusion method based on DWFT and IHS. When the parameter t is closed to 1, the fused image can obtain rich spectral information from the original MS image. The amount of computation reduced to only half of the fusion method based on four channels wavelet transform.

[1]  Yuesheng Xu,et al.  Multivariate Filter Banks Having Matrix Factorizations , 2003, SIAM J. Matrix Anal. Appl..

[2]  Thierry Blu,et al.  Isotropic-polyharmonic B-splines and wavelets , 2004, 2004 International Conference on Image Processing, 2004. ICIP '04..

[3]  Jelena Kovacevic,et al.  Nonseparable multidimensional perfect reconstruction filter banks and wavelet bases for Rn , 1992, IEEE Trans. Inf. Theory.

[4]  Wang Wenji.  Fusion of Multispectral Bands and Panchromatic Band of ETM Images Based on the Combination of Wavelet Transformation and IHS Transformation , 2005 .

[5]  Thierry Blu,et al.  Isotropic polyharmonic B-splines: scaling functions and wavelets , 2005, IEEE Transactions on Image Processing.

[6]  Wang Yaonan,et al.  A New Method for Image Fusion Based on Principal Component Analysis and Wavelet Transforms , 2005 .

[7]  Peng Jia-xiong.  Image fusion method based on symmetric non-separable wavelet , 2005 .

[8]  Xavier Otazu,et al.  Multiresolution-based image fusion with additive wavelet decomposition , 1999, IEEE Trans. Geosci. Remote. Sens..

[9]  Jiaxiong Peng,et al.  Image Fusion Method Based on Short Support Symmetric Non-Separable Wavelet , 2004, Int. J. Wavelets Multiresolution Inf. Process..

[10]  Myeong-Ryong Nam,et al.  Fusion of multispectral and panchromatic Satellite images using the curvelet transform , 2005, IEEE Geoscience and Remote Sensing Letters.

[11]  V. K. Shettigara,et al.  A generalized component substitution technique for spatial enhancement of multispectral images using , 1992 .

[12]  D H Tay,et al.  Flexible design of multidimensional perfect reconstruction FIR 2-band filters using transformations of variables , 1993, IEEE Trans. Image Process..

[13]  S. Sides,et al.  Comparison of three different methods to merge multiresolution and multispectral data: Landsat TM and SPOT panchromatic , 1991 .

[14]  J. Schott,et al.  Resolution enhancement of multispectral image data to improve classification accuracy , 1993 .

[15]  Chen Hanlin.  SAR-image enhancement and fusion based on improved IHS method , 2007 .

[16]  D. Yocky.  Image merging and data fusion by means of the discrete two-dimensional wavelet transform , 1995 .

[17]  Jiaxiong Peng,et al.  Image fusion method based on nonseparable wavelets , 2004, Machine Vision and Applications.