Pyramidal directional filter banks and curvelets

M.N. Do, M. Vetterli
Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205)  
A flexible multiscale and directional representation for images is proposed. The scheme combines directional filter banks with the Laplacian pyramid to provides a sparse representation for twodimensional 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 effective method to implement the digital curvelet transform. The regularity issue of the iterated filters in the directional filter bank is examined.
doi:10.1109/icip.2001.958075 dblp:conf/icip/DoV01 fatcat:rxubdqkpyrgwxmgnhx7layutp4