TY - GEN
T1 - Joint source-channel vector quantization using deterministic annealing
AU - Miller, David
AU - Rose, Kenneth
PY - 1992/1/1
Y1 - 1992/1/1
N2 - We present a new approach to the combined sourcechannel vector quantizer design problem. The method utilizes deterministic annealing to avoid local minima that trap conventional descent algorithms. The temperature here is used to control the fuzziness of the encoder and decoder association probabilities. In the low temperature limit, our method reduces to a descent method that is an analogue of the Generalized Lloyd Algorithm (GLA) for noisy channels. Thus, in this sense, it is a generalization of noisy channel GLA (NC-GLA). We performed simulations to compare our approach with several versions of NC-GLA. Our method outperformed the other methods under all test conditions. Moreover, the gains over other methods grow with the codebook size.
AB - We present a new approach to the combined sourcechannel vector quantizer design problem. The method utilizes deterministic annealing to avoid local minima that trap conventional descent algorithms. The temperature here is used to control the fuzziness of the encoder and decoder association probabilities. In the low temperature limit, our method reduces to a descent method that is an analogue of the Generalized Lloyd Algorithm (GLA) for noisy channels. Thus, in this sense, it is a generalization of noisy channel GLA (NC-GLA). We performed simulations to compare our approach with several versions of NC-GLA. Our method outperformed the other methods under all test conditions. Moreover, the gains over other methods grow with the codebook size.
UR - http://www.scopus.com/inward/record.url?scp=33747763904&partnerID=8YFLogxK
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U2 - 10.1109/ICASSP.1992.226222
DO - 10.1109/ICASSP.1992.226222
M3 - Conference contribution
AN - SCOPUS:33747763904
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 377
EP - 380
BT - ICASSP 1992 - 1992 International Conference on Acoustics, Speech, and Signal Processing
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1992
Y2 - 23 March 1992 through 26 March 1992
ER -