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Hierarchical image matching algorithm based on wavelet

Guo Fengjun\ \ Yang Xin\ \ Shi Pengfei (Inst. of Image Processing and Pattern Recognition, Shanghai Jiaotong Univ.,\ Shanghai,\ China,\ 200030)\;\;  
In this paper, hierarchical image matching algorithm based on wavelet is presented. Due to the multiresolution feature of wavelet representation, the advantages of this algorithm are that the convergent rate is faster and the results are not so easy falling to the local minimum. Our algorithm matches subimages in the lower resolution level to get the displacement vector field between two subimages, then this matching result is passed onto the higher resolution level as an initial estimate. Experiment proves that the algorithm indeed accelerates the convergence rate, and the probability that the solution falling into the local minimum is decreased. \;
【CateGory Index】: TP391.4
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