TY - GEN
T1 - A rate-distortion optimal scalable vertex based shape coding algorithm
AU - Melnikov, Gerry
AU - Katsaggelos, Aggelos K.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - In this paper, we present a rate-distortion (RD) optimized scalable vertex-based shape coding algorithm. Following the base layer, each successive enhancement layer refines a given shape approximation by optimally (within a layer) placing new vertices and perturbing existing vertices. An efficient low entropy distortion adaptive vertex coding strategy is employed to take advantage of information available from coarser layers. Based on the chosen vertex rate and distortion definitions, a resulting enhancement layer topology is solved by executing a Directed Acyclic Graph (DAG) shortest path algorithm. Finally, an iterative VLC optimization scheme is employed to find both the optimized scalable code and the most efficient set of parameter VLC tables.
AB - In this paper, we present a rate-distortion (RD) optimized scalable vertex-based shape coding algorithm. Following the base layer, each successive enhancement layer refines a given shape approximation by optimally (within a layer) placing new vertices and perturbing existing vertices. An efficient low entropy distortion adaptive vertex coding strategy is employed to take advantage of information available from coarser layers. Based on the chosen vertex rate and distortion definitions, a resulting enhancement layer topology is solved by executing a Directed Acyclic Graph (DAG) shortest path algorithm. Finally, an iterative VLC optimization scheme is employed to find both the optimized scalable code and the most efficient set of parameter VLC tables.
UR - http://www.scopus.com/inward/record.url?scp=0033692885&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033692885&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2000.859211
DO - 10.1109/ICASSP.2000.859211
M3 - Conference contribution
AN - SCOPUS:0033692885
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 1947
EP - 1950
BT - Image and Multidimensional Signal ProcessingMultimedia Signal Processing
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000
Y2 - 5 June 2000 through 9 June 2000
ER -