Title :
Distortion measurement using arc-length-parameterisation within a vertex-based shape coding framework
Author :
Sohel, Ferdous Ahmed ; Benna, Mohammed
Author_Institution :
Sch. of Comput. Sci. & Software Eng., Univ. of Western Australia, Perth, WA
Abstract :
Existing vertex-based shape coding algorithms use a number of different distortion measurement techniques including the shortest absolute distance (SAD), distortion band (DB) or tolerance band (TB), accurate distortion measurement technique for shape coding (ADMSC) and distortion measurement based on chord-length-parameterisation (DMCLP). Among these techniques DMCLP is computationally the fastest. It however, is a relaxed measurement technique and does not fully utilise the admissible distortion within the rate-distortion optimisation. This paper presents a novel distortion measurement technique based on arc-length-parameterisation (DMALP) within the vertex-based shape coding framework. Experimental results vindicate its superior performance over the existing geometric distortion measurement techniques.
Keywords :
distortion measurement; image coding; optimisation; rate distortion theory; arc-length-parameterisation; chord-length-parameterisation; distortion band; distortion measurement technique; rate-distortion optimisation; shortest absolute distance; tolerance band; vertex-based shape coding framework; Computational complexity; Computer science; Distortion measurement; Encoding; Information technology; Rate-distortion; Real time systems; Shape control; Shape measurement; Video coding; Image coding; image/video coding and transmission; video coding;
Conference_Titel :
Computer and Information Technology, 2008. ICCIT 2008. 11th International Conference on
Conference_Location :
Khulna
Print_ISBN :
978-1-4244-2135-0
Electronic_ISBN :
978-1-4244-2136-7
DOI :
10.1109/ICCITECHN.2008.4803073