Title :
Modified SPIHT algorithm for wavelet packet image coding
Author :
Sprljan, Nikola ; Grgic, Sonja ; Mrak, Marta ; Grgic, Mislav
Author_Institution :
Fac. of Electr. Eng. & Comput., Zagreb Univ., Croatia
Abstract :
SPIHT is a very efficient image compression algorithm that is based on the idea of coding groups of wavelet coefficients as zerotrees. This method is well suited for the dyadic wavelet transform, where child-parent relations are easily established. In this paper we investigate how the SPIHT algorithm can be used for any arbitrary wavelet packet basis.
Keywords :
data compression; image coding; tree data structures; wavelet transforms; child-parent relations; dyadic wavelet transform; image compression algorithm; modified SPIHT algorithm; wavelet coefficients; wavelet packet basis; wavelet packet image coding; zerotrees; Cost function; Discrete transforms; Discrete wavelet transforms; Energy measurement; Entropy; Image coding; Quantization; Transform coding; Wavelet packets; Wavelet transforms;
Conference_Titel :
Video/Image Processing and Multimedia Communications 4th EURASIP-IEEE Region 8 International Symposium on VIPromCom
Print_ISBN :
953-7044-01-7
DOI :
10.1109/VIPROM.2002.1026653
