Title :
Multi-resolution Mean-Shift Algorithm for Vector Quantization
Author :
Bouttefroy, P.L.M. ; Bouzerdoum, A. ; Beghdadi, A. ; Phung, S.L.
Author_Institution :
SECTE, Univ. of Wollongong, Wollongong, NSW, Australia
Abstract :
Here we propose to apply the mean-shift algorithm to the four image subbands generated by a DWT, namely the LL, LH, HL and HH subbands. The simulated annealing technique traditionally used to identify the modes of the distribution for different resolutions can be performed by exploration of the multi-scale DWT pyramid, avoiding the costly estimation by a full mean-shift at each level.
Keywords :
discrete wavelet transforms; image resolution; simulated annealing; video coding; image subbands; multi-resolution mean-shift algorithm; multi-scale DWT pyramid; simulated annealing technique; vector quantization; Australia; Data compression; Decoding; Discrete wavelet transforms; Image converters; Image generation; Kernel; PSNR; Pixel; Vector quantization; Vector Quantization; discrete wavelet transform; mean-shift;
Conference_Titel :
Data Compression Conference (DCC), 2010
Conference_Location :
Snowbird, UT
Print_ISBN :
978-1-4244-6425-8
Electronic_ISBN :
1068-0314
DOI :
10.1109/DCC.2010.55
