TY - GEN
T1 - Subband VPIC with classified joint vector quantization
AU - Chan, K. W.
AU - Chan, K. L.
PY - 1996
Y1 - 1996
N2 - Subband Coding (SBC) was combined with Visual Pattern Image Coding (VPIC) to eliminate the blockiness and reduce the jagged edge artifact. A new set of 2 × 2 patterns was designed to code the highly compacted subband signals. The MSE's are significantly reduced by coding only the lowest frequency band. By making use of the inter-band correlation among various subband signals, a Classified Joint Vector Quantization (CJVQ) scheme was derived for coding the high frequency and residue subbands, using the pattern index in the Low Frequency Band (LFB) as the classifier. PSNR is further enhanced by up to 1.7 dB with less than 8% decrease in compression ratio.
AB - Subband Coding (SBC) was combined with Visual Pattern Image Coding (VPIC) to eliminate the blockiness and reduce the jagged edge artifact. A new set of 2 × 2 patterns was designed to code the highly compacted subband signals. The MSE's are significantly reduced by coding only the lowest frequency band. By making use of the inter-band correlation among various subband signals, a Classified Joint Vector Quantization (CJVQ) scheme was derived for coding the high frequency and residue subbands, using the pattern index in the Low Frequency Band (LFB) as the classifier. PSNR is further enhanced by up to 1.7 dB with less than 8% decrease in compression ratio.
UR - http://www.scopus.com/inward/record.url?scp=0030416522&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0030416522&origin=recordpage
M3 - RGC 32 - Refereed conference paper (with host publication)
VL - 3
SP - 383
EP - 386
BT - IEEE International Conference on Image Processing
PB - IEEE
T2 - Proceedings of the 1996 IEEE International Conference on Image Processing, ICIP'96. Part 2 (of 3)
Y2 - 16 September 1996 through 19 September 1996
ER -