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Rotational image deblurring with sparse matrices

: Hansen, P.C.; Nagy, J.G.; Tigkos, K.


BIT. Numerical Mathematics 54 (2014), No.3, pp.649-671
ISSN: 0006-3835 (print)
ISSN: 1572-9125 (online)
Journal Article
Fraunhofer IIS ()

We describe iterative deblurring algorithms that can handle blur caused by a rotation along an arbitrary axis (including the common case of pure rotation). Our algorithms use a sparse-matrix representation of the blurring operation, which allows us to easily handle several different boundary conditions. We also include robust stopping rules for the iterations. The performance of our algorithms is illustrated with examples.