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Autofocusing with the help of orthogonal series transforms

Śliwiński P.

International Journal of Electronics and Telecommunications

2010

Vol. 56, No. 1

33-39

An autofocus algorithm employing orthogonal series expansions is proposed. Several instances of the generic algorithm, based on discrete trigonometric, polynomial and wavelet series, are reviewed. The algorithms are easy to implement in the transform coders used in digital cameras. Formal analysis of the algorithm properties is illustrated in experiments. Some practical issues are also discussed.