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Image restoration by spline functions.

作者信息

Peyrovian M J, Sawchuk A A

出版信息

Appl Opt. 1978 Feb 15;17(4):660-6. doi: 10.1364/AO.17.000660.

DOI:10.1364/AO.17.000660
PMID:20197845
Abstract

Spline functions, because of their highly desirable interpolating and approximating characteristics, are used as a potential alternative to the conventional pulse approximation method in digital image processing. In space-invariant imaging systems, the object and point-spread function are represented by a class of spline functions called B-splines. Exploiting the convolutional property of B-splines, the deterministic part of the degraded image is another B-spline of higher degree. A minimum norm principle leading to pseudoinversion is used for the restoration of space-invariant degradations with underdetermined and overdetermined models. The singular-value-decomposition technique is used to determine the pseudoinverse.

摘要

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