Directional wavelet transforms and frames

V. Velisavljevic, P.L. Dragotti, M. Vetterli
Proceedings. International Conference on Image Processing  
The application of the wavelet transform in image processing is most frequently based on a separable transform. Lines and columns in an image are treated independently and the basis functions are simply products of corresponding onedimensional functions. Such a method keeps simplicity in design and computation. In this paper, a new two-dimensional approach is proposed, which retains the simplicity of separable processing, but allows more directionalities. The method can be applied in many areas
more » ... plied in many areas like denoising, nonlinear approximation and compression. The results on nonlinear approximation and denoising show interesting gains compared to the standard two-dimensional analysis.
doi:10.1109/icip.2002.1039039 dblp:conf/icip/DragottiVV02 fatcat:2i2zbpjg4rddxhsq7f6t5yxjwi