System and computer readable medium for pre-focus of digital slides

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United States of America Patent

PATENT NO 7646495
SERIAL NO

12547386

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Abstract

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Methods and apparatus are provided for computing focus information prior to scanning digital microscope slides with a line scan camera. The methods include a point-focus procedure that works by moving the slide to the desired measurement location, moving the objective lens through a predefined set of height values, acquiring imagery data at each height, and determining the height of maximum contrast. The methods also include a ribbon-focus procedure whereby imagery data are acquired continuously, while the slide and objective lens are in motion. Both methods may be applied with either a static or a dynamic implementation.

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Patent Owner(s)

Patent OwnerAddress
LEICA BIOSYSTEMS IMAGING INC1360 PARK CENTER DRIVE VISTA CA 92081

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crandall, Greg Rancho Santa Fe, US 22 456
Olsen, Allen San Diego, US 1 21
Soenksen, Dirk G Carlsbad, US 48 1750

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