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:
Sep. 04, 2018
Filed:
Oct. 11, 2016
Applicant:
Google Llc, Mountain View, CA (US);
Inventors:
Vlad Constantin Cardei, Redwood City, CA (US);
Boyd Albert Fowler, Sunnyvale, CA (US);
Assignee:
Google LLC, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 11/00 (2006.01); G01M 11/02 (2006.01); G06T 7/13 (2017.01); G06T 7/00 (2017.01);
U.S. Cl.
CPC ...
G01M 11/0292 (2013.01); G06T 7/0085 (2013.01); G06T 7/13 (2017.01); G06T 2207/30168 (2013.01); H05K 999/99 (2013.01);
Abstract
A method of determining a modulation transfer function (MTF) for an image includes receiving an image captured through the optical system, performing edge detection on columns or rows in the image to calculate a plurality of edge points, calculating a plurality polynomials to fit to the calculated edge points, each of the plurality of polynomials varying in degree, selecting a polynomial from the plurality of polynomials to represent the detected edge, and estimating the MTF based on the selected polynomial.