Samenvatting
In wavelet-based L-infinity-constrained embedded coding, the bit-stream is truncated at the bit-rate that corresponds to a guaranteed, user-defined distortion bound. The letter analyzes the optimality of embedded deadzone scalar-quantizers for high-rate L-infinity-constrained scalable wavelet-based image coding. A rate-distortion model applicable to the family of embedded deadzone scalar-quantizers is derived and experimentally validated. Conclusions are drawn regarding the optimal subband-quantizer instantiations. The optimal quantizers are employed in a coding algorithm that retains the coding performance and the flexibility options of wavelet-based codecs while allowing for a fully embedded L-infinity-oriented bit-stream.
| Originele taal-2 | English |
|---|---|
| Pagina's (van-tot) | 367-371 |
| Aantal pagina's | 5 |
| Tijdschrift | IEEE Signal Processing Letters |
| Volume | 11 |
| Nummer van het tijdschrift | 3 |
| Status | Published - mrt 2004 |