[1] [1] Burt P J,Adelson E.The laplacian pyramid as a compact image code[J].IEEE Trans on Communications,1983,31(4):532-540

[2] [2] Toet A,Ruyven L J,Valeton J M.Merging thermal and visual images by a contrast pyramid[J].Optical Engineering,1989,28(7):789-792

[3] [3] Matsopoulos G K,Atlins S.Multiresolution morphological fusion of MR and CT images of the human brain[J].Image Signal Processing,1994,141(3):137-142

[4] [4] Do M N,Vetterli M.The Contourlet Transform:An Efficient Directional Multiresolution Image Representation[J].IEEE Transactions on Image Processing,2005,14(12):2091-2106

[5] [5] Cunha A L,Zhou J,Do M N.The nonsubsampled contourlet transform:theory,design and applications[J].IEEE Transactions on Image Processing,2006,15(10):3089-3101

[6] [6] Duncan D Y,Minh N D.Directional Multiscale Modeling of Images using the Contourlet Transform[C]// IEEE Workshop on Statistical Signal Processing.[S.l.]:IEEE,2003:262-265

[7] [7] Burt P J.A gradient pyramid basis for pattern selective image fusion[J].Society for Information Display Digest of Technical,1985,16:467-470

[8] [8] LI H,Manjunath B S,Mitra S K.Multi-sensor image fusion using the wavelet transforms[J].Graphical Models and Image Processing,1995,57(3):235-245