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Quantifying the coding power of zerotrees of wavelet coefficients: a degree-k zerotree model

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2 Author(s)
Yushin Cho ; Rensselaer Polytech. Inst., Troy, NY, USA ; Pearlman, W.A.

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.

Published in:

Image Processing, 2005. ICIP 2005. IEEE International Conference on  (Volume:3 )

Date of Conference:

11-14 Sept. 2005