Title :
Blind multichannel image restoration using subspace based method
Author :
Wirawan ; Abed-Meraim, Karim ; Maître, Henri ; Duhamel, Pierre
Author_Institution :
Dept. of Signal & Image Process., Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
We address the problem of image restoration in a multichannel system degraded by unknown blurs and additive noise. To identify the unknown blurs, modelled as FIR channels, we propose a subspace based method which exploits an orthogonality property between signal and noise subspaces. Finally, to demonstrate the performance of the proposed method, we run simulations and compare the results with those of the cross relation method.
Keywords :
convolution; image denoising; image restoration; matrix algebra; random noise; FIR channels; additive noise; blind multichannel image restoration; blurring; convolution matrix; cross relation method; subspace based method; Additive noise; Convolution; Covariance matrix; Degradation; Finite impulse response filter; Image processing; Image restoration; Laboratories; Signal processing; Signal restoration;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199854