TY - GEN
T1 - Variable-rate finite-state vector quantization of images
AU - Hussain, Y.
AU - Farvardin, N.
PY - 1991
Y1 - 1991
N2 - A description is given of two variable-rate finite-state vector quantization systems for low bit rate image coding. The first system subtracts the mean from each input block and then encodes the mean-subtracted block by means of the 2-D version of the variable-rate finite-state vector quantization system. The block-mean is separately encoded efficiently by exploiting the high correlation present in the means of the adjacent blocks. At a bit rate of 0.31 b/pixel, a peak signal-to-noise ratio of 31.66 dB is achieved for encoding the 512 × 512 version of the Lena image using this system. The second system is a generalization of the system described by E. A. Riskin et al (1989). A prediction is made on each pixel using a fifth-order predictor, and the residual is again encoded using the same type of finite-state vector quantization. A peak signal-to-noise ratio of 31.2 dB is achieved at 0.31 bits/pixel for encoding the 512 × 512 version of Lena using this system.
AB - A description is given of two variable-rate finite-state vector quantization systems for low bit rate image coding. The first system subtracts the mean from each input block and then encodes the mean-subtracted block by means of the 2-D version of the variable-rate finite-state vector quantization system. The block-mean is separately encoded efficiently by exploiting the high correlation present in the means of the adjacent blocks. At a bit rate of 0.31 b/pixel, a peak signal-to-noise ratio of 31.66 dB is achieved for encoding the 512 × 512 version of the Lena image using this system. The second system is a generalization of the system described by E. A. Riskin et al (1989). A prediction is made on each pixel using a fifth-order predictor, and the residual is again encoded using the same type of finite-state vector quantization. A peak signal-to-noise ratio of 31.2 dB is achieved at 0.31 bits/pixel for encoding the 512 × 512 version of Lena using this system.
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U2 - 10.1109/icassp.1991.150757
DO - 10.1109/icassp.1991.150757
M3 - Conference contribution
AN - SCOPUS:0026368846
SN - 0780300033
T3 - Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
SP - 2301
EP - 2304
BT - Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
T2 - Proceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91
Y2 - 14 May 1991 through 17 May 1991
ER -