Title :
Adaptive image restoration using the multichannel recursive least squares algorithm
Author :
Chellali, Mohamed ; Ingle, Vinay K.
Author_Institution :
Commun. & Digital Signal Process. Center, Northeastern Univ., Boston, MA, USA
Abstract :
Because of the inhomogeneous nature of images in the real world, and fading imaging systems, an adaptive approach to image restoration is used. The approach is based on the multichannel adaptive equalization technique. The adaptive algorithm used is the multichannel recursive least squares algorithm, which is an extension of the 1-D recursive least squares (RLS) transversal filter. This new approach does not require knowledge of system characteristics or signal data; however, a training phase is required for initial adaptation of restoration filter coefficients. To verify the proposed approach, simulation results are included
Keywords :
least squares approximations; picture processing; telecommunication channels; 1-D recursive least squares; RLS transversal filter; adaptive algorithm; adaptive image restoration; fading imaging systems; multichannel adaptive equalization; multichannel recursive least squares algorithm; restoration filter coefficients; simulation results; training phase; Adaptive equalizers; Adaptive filters; Degradation; Filtering; Image restoration; Intersymbol interference; Least squares methods; Nonlinear filters; Signal processing algorithms; Wiener filter;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150914