Title :
Quantifying the coding power of zerotrees of wavelet coefficients: a degree-k zerotree model
Author :
Cho, Yushin ; Pearlman, W.A.
Author_Institution :
Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
A degree-k zero tree model is presented, in order to quantify the coding power of zerotrees in wavelet-based image coding. Based on the model, the coding behaviors of modern zerotree based image coders are clearly explained. Also, we explain why the well-known SPIHT algorithm can code a wider range of zerotrees than EZW. Experimental results support our idea that higher degree zerotree coder will have more coding power.
Keywords :
image coding; transform coding; tree codes; wavelet transforms; coding power; degree-k zerotree model; wavelet coefficients; wavelet-based image coding; zerotrees; Algorithm design and analysis; Entropy coding; Image analysis; Image coding; Performance analysis; Quantization; Wavelet analysis; Wavelet coefficients;
Conference_Titel :
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Print_ISBN :
0-7803-9134-9
DOI :
10.1109/ICIP.2005.1530326
