Title :
Sparse edge coding using overcomplete Gabor wavelets
Author :
Fischer, Sylvain ; Cristóbal, Gabriel ; Redondo, Rafael
Author_Institution :
Inst. de Opt., Madrid, Spain
Abstract :
We present here a sparse coding algorithm dedicated exclusively to overcomplete Gabor wavelets and based on perceptual contour extraction methods. The algorithm has reduced computational cost and achieves compression rates similar to the standard image compression algorithms (JPEG and JPEG-2000) with the additional advantage of limiting the appearance of artifacts.
Keywords :
data compression; image coding; wavelet transforms; contour extraction methods; image compression algorithms; overcomplete Gabor wavelets; sparse edge coding; Band pass filters; Brain modeling; Gabor filters; Image coding; Image reconstruction; Low pass filters; Nonlinear filters; Signal resolution; Transform coding; Wavelet transforms;
Conference_Titel :
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Print_ISBN :
0-7803-9134-9
DOI :
10.1109/ICIP.2005.1529693
