DocumentCode :
2128417
Title :
Errorless restoration algorithms for band-limited images
Author :
Ferreira, P.J.S.G. ; Pinho, Armando J.
Author_Institution :
Dept. de Electron. e Telecoms, Aveiro Univ., Portugal
Volume :
3
fYear :
1994
fDate :
13-16 Nov 1994
Firstpage :
157
Abstract :
Considers the problem of restoring randomly distributed sets of missing pixels in band-limited discrete images, and give non-iterative and iterative algorithms capable of error-free restoration. The methods discussed have minimum dimension, that is, the size of the matrices and vectors which appear in the algorithm is determined by the number of unknown pixels. This is a characteristic which an alternative iterative formulation, based on the Papoulis-Gerchberg iteration, does not have. Convergence proofs for both the basic algorithms and a number of accelerated iterative methods are included as well. The performance of the methods is demonstrated with examples
Keywords :
convergence of numerical methods; image restoration; iterative methods; matrix algebra; random processes; accelerated iterative methods; band-limited images; convergence proof; discrete images; errorless restoration algorithms; iterative algorithms; matrices; minimum dimension; missing pixels; noniterative algorithms; performance; randomly distributed sets; vectors; Acceleration; Convergence; Discrete Fourier transforms; Eigenvalues and eigenfunctions; Fast Fourier transforms; Image restoration; Iterative algorithms; Iterative methods; Pixel; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
Type :
conf
DOI :
10.1109/ICIP.1994.413868
Filename :
413868
Link To Document :
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