Title :
Wavelet packet-based progressive image transmission by prioritized subband selection and multistage quantization
Author :
Song, Joon Ho ; Lee, Gi Hun ; Park, Rae-Hong
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
Abstract :
This paper proposes progressive image transmission (PIT) algorithms based on the wavelet packet transform. In the proposed methods quantization steps are optimized at each stage in an embedded manner for the given bit rate. After quantization selected subbands are ordered by their priorities for transmission. Subjective quality of the reconstructed image is improved by human visual system (HVS) weighting
Keywords :
image reconstruction; optimisation; quantisation (signal); visual communication; wavelet transforms; algorithms; bit rate; human visual system weighting; multistage quantization; optimization; prioritized subband selection; reconstructed image; subjective quality; wavelet packet-based progressive image transmission; Bandwidth; Bit rate; Image communication; Image reconstruction; Lagrangian functions; Optimization methods; Quantization; Streaming media; Visual system; Wavelet packets;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.632190
