System and method for auto-focusing an image

Image analysis – Image enhancement or restoration – Focus measuring or adjusting

Reexamination Certificate

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C382S128000, C348S349000

Reexamination Certificate

active

06876776

ABSTRACT:
A method and system for auto-focusing is disclosed where the number of the fractal pixels having a fractal dimension within a predetermined range is determined. The focused image is determined by adjusting the image to maximize the fractal pixel count. Alternatively, the focused image may be selected from a set of images, the image having the largest fractal pixel count selected as the focused image.

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Firestone et al., “Composition of Autofocus Methods for Automated Microscopy”, Cytometry 12:195-206 (1991).
Luo et al., “Design and Implementation of New Auto-focusing Algorithms for Intelligent Robot Eye-in-Hand System,” IEEE, pp. 11-16, 1987.

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