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:
Jul. 24, 2007
Cynthia Lynne Lewis, Webster, NY (US);
Andrew P. Sacco, Pittsford, NY (US);
Cynthia Lynne Lewis, Webster, NY (US);
Andrew P. Sacco, Pittsford, NY (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
A method for obtaining a modulation transfer function (MTF) of a knife-edge target imaged by an electro-optical device is described. The method includes the steps of: (a) obtaining edge response data points, where a data point includes a perpendicular distance, d, to the knife-edge target; and (b) constructing a sequence of line slopes of the edge response data points, where a line slope includes a spread of edge response data points. The method then selects a line slope that minimizes the spread of edge response data points, and calculates the MTF, based on the edge response data points included in the selected line slope. The MTF is provided to a user. An edge response data point is defined by a pair of values of (d, E) of a pixel, where distance, d, is the shortest distance between the pixel and a line slope and the pixel has an intensity value, E.