Computationally efficient wavelet affine invariant functions for 2D object recognition
Proceedings of the International Conference on Image Processing, IEEE 2003
1061 - 1064
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In this paper, an affine invariant function is presented for object recognition from wavelet coefficients of the object boundary. In previous works, undecimated wavelet transform was used for affine invariant functions. In this paper, an algorithm based on decimated wavelet transform is developed to compute the affine invariant function. As a result, computational complexity is significantly reduced without decreasing recognition performance. Experimental results are presented.
KeywordsDyadic wavelet transform (DWT)
Wavelet affine invariant functions