TY - GEN
T1 - Image compression using a stochastic competitive learning algorithm (SCoLA)
AU - Bouzerdoum, Abdesselam
PY - 2001
Y1 - 2001
N2 - We introduce a new stochastic competitive learning algorithm (SCoLA) and apply it to vector quantization for image compression. In competitive learning, the training process involves presenting, simultaneously, an input vector to each of the competing neurons, which then compare the input vector to their own weight vectors and one of them is declared the winner based on some deterministic distortion measure. Here a stochastic criterion is used for selecting the winning neuron, whose weights are then updated to become more like the input vector. The performance of the new algorithm is compared to that of frequency-sensitive competitive learning (FSCL); it was found that SCoLA achieves higher peak signal-to-noise ratios (PSNR) than FSCL.
AB - We introduce a new stochastic competitive learning algorithm (SCoLA) and apply it to vector quantization for image compression. In competitive learning, the training process involves presenting, simultaneously, an input vector to each of the competing neurons, which then compare the input vector to their own weight vectors and one of them is declared the winner based on some deterministic distortion measure. Here a stochastic criterion is used for selecting the winning neuron, whose weights are then updated to become more like the input vector. The performance of the new algorithm is compared to that of frequency-sensitive competitive learning (FSCL); it was found that SCoLA achieves higher peak signal-to-noise ratios (PSNR) than FSCL.
UR - http://www.scopus.com/inward/record.url?scp=84904365230&partnerID=8YFLogxK
U2 - 10.1109/ISSPA.2001.950200
DO - 10.1109/ISSPA.2001.950200
M3 - Conference contribution
AN - SCOPUS:84904365230
SN - 0780367030
SN - 9780780367036
T3 - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
SP - 541
EP - 544
BT - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
PB - IEEE Computer Society
T2 - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001
Y2 - 13 August 2001 through 16 August 2001
ER -