Pyramidal directional filter banks and curvelets
- 13 November 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 158-161
- https://doi.org/10.1109/icip.2001.958075
Abstract
A flexible multiscale and directional representation for im ages is proposed. The scheme combines directional filter banks with the Laplacian pyramid to provides a sparse representation for t wo- dimensional piecewise smooth signals resembling images. The underlying expansion is a frame and can be designed to be a tight frame. Pyramidal directional filter banks provide an e ffective method to implement the digital curvelet transform. The regularity issue of the iterated filters in the directional filter bank is examined.Keywords
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