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Image restoration by iterative estimation of the expansion coefficients of an object in singular vector space
Abstract:
The singular-value-decomposition (SVD) method has been utilized in an algebraic image-reconstruction problem. The effect of noise on a reconstructed image can be understood from the expansion coefficients of an object in singular vector space calculated by the SVD algorithm. We propose a method in which the coefficients corresponding to small singular values are estimated by using a priori information about the object. Results of computer simulations for iterative restoration of an image subjected to low-pass frequency filtering show the utility of the method.
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