Title :
Spatiotemporal adaptive 3-D Volterra equalizer for video restoration
Author :
El Hassouni, Mohammed ; Elhaj, E. Ibn ; Aboutajdine, D.
Author_Institution :
Univ. Mohammed V, Rabat, Morocco
Abstract :
This paper presents a 3-D adaptive Volterra filter with an LMS type adaptation algorithm. This filter is used for equalizing an unknown channel with some point-wise nonlinearity and restoring image sequences degraded by this channel. First a robust higher order statistics (HOS) based motion estimation method is employed. Then, a 3-D Volterra equalizer is applied. The performance of this algorithm is demonstrated using real image sequences
Keywords :
adaptive equalisers; adaptive filters; higher order statistics; image restoration; image sequences; least mean squares methods; motion estimation; multidimensional signal processing; nonlinear filters; video signal processing; 3-D adaptive Volterra filter; HOS based motion estimation method; LMS type adaptation algorithm; high order statistics based motion estimation method; image sequences; point-wise nonlinearity; spatiotemporal adaptive 3-D Volterra equalizer; unknown channel; video restoration; Adaptive filters; Degradation; Equalizers; Higher order statistics; Image restoration; Image sequences; Least squares approximation; Motion estimation; Robustness; Spatiotemporal phenomena;
Conference_Titel :
Multimedia Signal Processing, 2001 IEEE Fourth Workshop on
Conference_Location :
Cannes
Print_ISBN :
0-7803-7025-2
DOI :
10.1109/MMSP.2001.962730
