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
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