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Rate-distortion based optimization for zerotree entropy wavelet coding

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3 Author(s)
Hung-Ju Lee ; Sarnoff Corp., Princeton, NJ ; Tihao Chiang ; Ya-Qin Zhang

We present a rate-distortion (R-D) based bit allocation scheme for MPEG-4 zerotree entropy based wavelet coding, specifically, the multiscale zerotree entropy coding mode (MQ) of the MPEG-4 visual texture coding tool. With an iterative quadratic R-D model, our algorithm achieves accurate target bit rate and better image quality with fast convergence

Published in:

IEEE Transactions on Consumer Electronics  (Volume:45 ,  Issue: 3 )