TY - JOUR
T1 - Jigsaw-puzzle vector quantization for image compression
AU - Yeh, Chia Hung
PY - 2004/2
Y1 - 2004/2
N2 - A new finite-state vector quantization scheme called jigsaw-puzzle vector quantization (JPVQ) is proposed to provide better image quality, especially in the low bit rate context. For low bit rate image coding with conventional finite-state vector quantization (FSVQ) techniques, image quality degrades due to error propagation from one state to the next. The proposed JPVQ algorithm exploits the four-step side-match prediction technique to optimize the spatial continuity of each encoded block to improve the coding performance and reduce the error propagation effect. In the proposed coding scheme, an input block can be encoded by the jigsaw-puzzle block, the dynamic codebook, or the super-codebook. It is demonstrated with experimental results that JPVQ performs significantly better than traditional FSVQ techniques.
AB - A new finite-state vector quantization scheme called jigsaw-puzzle vector quantization (JPVQ) is proposed to provide better image quality, especially in the low bit rate context. For low bit rate image coding with conventional finite-state vector quantization (FSVQ) techniques, image quality degrades due to error propagation from one state to the next. The proposed JPVQ algorithm exploits the four-step side-match prediction technique to optimize the spatial continuity of each encoded block to improve the coding performance and reduce the error propagation effect. In the proposed coding scheme, an input block can be encoded by the jigsaw-puzzle block, the dynamic codebook, or the super-codebook. It is demonstrated with experimental results that JPVQ performs significantly better than traditional FSVQ techniques.
KW - Classified side-match vector quantization
KW - Dynamic finite-state vector quantization
KW - Finite-state vector quantization
KW - Gradient classified side-match vector quantization
KW - Gradient-match vector quantization
KW - Image compression
KW - Improved feature match finite-state vector quantization
KW - Side-match vector quantization
KW - Vector quantization
UR - http://www.scopus.com/inward/record.url?scp=1942520216&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1942520216&partnerID=8YFLogxK
U2 - 10.1117/1.1633777
DO - 10.1117/1.1633777
M3 - Article
AN - SCOPUS:1942520216
SN - 0091-3286
VL - 43
SP - 363
EP - 370
JO - Optical Engineering
JF - Optical Engineering
IS - 2
ER -