The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Aug. 29, 2008
James W. Douglass, Indialantic, FL (US);
Thomas J. Riding, West Melbourne, FL (US);
James E. Ring, Melbourne Beach, FL (US);
Gina Mclaren, Laguna Niguel, CA (US);
William J. Decker, San Diego, CA (US);
Robert T. Ellis, Dana Point, CA (US);
James W. Douglass, Indialantic, FL (US);
Thomas J. Riding, West Melbourne, FL (US);
James E. Ring, Melbourne Beach, FL (US);
Gina McLaren, Laguna Niguel, CA (US);
William J. Decker, San Diego, CA (US);
Robert T. Ellis, Dana Point, CA (US);
Carl Zeiss MicroImaging GmbH, Jena, DE;
Abstract
A method including acquiring images of medical slides at a plurality of different focus positions, determining a position which produces a maximum value of pixel values relative to a pixel value mean, wherein said determining comprises using a pixel value mean as a coarse estimate of coarse focus position, and subsequently refining said coarse focus position to find a fine focus position, and wherein said refining comprises fitting to a polynomial, and using a specified portion of the polynomial as a fine estimate of focus position, and producing a focus control signal that is related to said maximum value to control a focus position.