Paper Info
Title
New Dynamic Enhancements to the Vertex-Based Rate-Distortion Optimal Shape Coding Framework
Abstract
Existing vertex-based operational rate-distortion (ORD) optimal shape coding algorithms use a vertex band around the shape boundary as the source of candidate control points (CP) usually in combination with a tolerance band (TB) and sliding window (SW) arrangement, as their distortion measuring technique. These algorithms however, employ a fixed vertex-band width irrespective of the shape and admissible distortion (AD), so the full bit-rate reduction potential is not fulfilled. Moreover, despite the causal impact of the SW-length upon both the bit-rate and computational-speed, there is no formal mechanism for determining the most suitable SW-length. This paper introduces the concept of a variable width admissible CP band and new adaptive SW-length selection strategy to address these issues. The presented quantitative and qualitative results analysis endorses the superior performance achieved by integrating these enhancements into the existing vertex-based ORD optimal algorithms.
Year
DOI
Venue
2007
10.1109/TCSVT.2007.903788
IEEE Trans. Circuits Syst. Video Techn.
Keywords
Field
DocType
width admissible cp band,new dynamic enhancements,admissible distortion,existing vertex-based ord optimal,new adaptive sw-length selection,shape boundary,vertex band,optimal shape,distortion measuring technique,coding framework,vertex-based rate-distortion optimal shape,suitable sw-length,tolerance band,rate distortion optimization,algorithm design and analysis,sliding window,shape,spline
Spline (mathematics),Code rate,Computer science,Control theory,Shape coding,Artificial intelligence,Distortion,Rate–distortion theory,Algorithm design,Sliding window protocol,Pattern recognition,Vertex (geometry),Algorithm
Journal
Volume
Issue
ISSN
17
10
1051-8215
Citations 
PageRank 
References 
11
0.55
9
Authors
3
Name
Order
Citations
PageRank
F. A. Sohel1110.55
Laurence Dooley2605.36
G. C. Karmakar3182.19