TY - GEN
T1 - Eliminating correlated errors in subband/wavelet coding systems with quantization
AU - Kovacevic, Jelena
PY - 1993
Y1 - 1993
N2 - A new method for dealing with the effects of quantization in a subband system, is proposed. It uses the `gain plus additive noise' linear model for the Lloyd-Max quantizer. Based on this, it is demonstrated how, by an appropriate choice of synthesis filters, one can cancel all signal-dependent errors at the output of the system. The only remaining error is random in nature and uncorrelated to the input signal. As a result, it is possible to alleviate this error using a noise removal technique. To demonstrate the validity of the proposed approach, experiments on images are carried out.
AB - A new method for dealing with the effects of quantization in a subband system, is proposed. It uses the `gain plus additive noise' linear model for the Lloyd-Max quantizer. Based on this, it is demonstrated how, by an appropriate choice of synthesis filters, one can cancel all signal-dependent errors at the output of the system. The only remaining error is random in nature and uncorrelated to the input signal. As a result, it is possible to alleviate this error using a noise removal technique. To demonstrate the validity of the proposed approach, experiments on images are carried out.
UR - http://www.scopus.com/inward/record.url?scp=0027882408&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027882408&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0027882408
SN - 0818641207
T3 - Conference Record of the Asilomar Conference of Signals, Systems & Computers
SP - 881
EP - 885
BT - Conference Record of the Asilomar Conference of Signals, Systems & Computers
PB - Publ by IEEE
T2 - Proceedings of the 27th Asilomar Conference on Signals, Systems & Computers
Y2 - 1 November 1993 through 3 November 1993
ER -