Title :
Optimized lifting scheme for two-dimensional quincunx sampling images
Author :
Gouze, Annabelle ; Antonini, Marc ; Barlaud, Michel ; Macq, Benoit
Author_Institution :
CNRS, Sophia Antipolis Univ., France
Abstract :
This paper introduces the problem of designing a quincunx lifting scheme well-adapted to lossy compression applications. The main goal is to design quincunx filters adapted to the statistical properties of the input signal in order to perform a better signal reconstruction after deterioration due to a lossy coding. To perform such a filtering, the basic idea is to combine optimization methods and a lifting scheme. The latter is an attractive tool to perform wavelet transforms
Keywords :
circuit optimisation; filtering theory; image coding; image reconstruction; image sampling; transform coding; wavelet transforms; 2D quincunx sampling images; input signal; lossy coding; lossy compression; optimization methods; optimized lifting scheme; quincunx filters design; quincunx lifting filters optimization; signal reconstruction; statistical properties; two-dimensional quincunx sampling images; wavelet transforms; Filtering; Frequency; Image coding; Image sampling; Optimization methods; Signal design; Signal resolution; Wavelet coefficients; Wavelet transforms; Wiener filter;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.958472
