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:
Mar. 21, 2023
Filed:
Nov. 09, 2020
Applicant:
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Inventors:
Christopher A. Keith, Wilsonville, OR (US);
Ming Yu, Tigard, OR (US);
Assignee:
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); G06T 5/00 (2006.01); G06T 5/50 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01); G06T 5/002 (2013.01); G06T 5/003 (2013.01); G06T 5/50 (2013.01); H04N 5/23227 (2018.08); G06T 2207/20024 (2013.01); G06T 2207/20224 (2013.01);
Abstract
A method for identifying and correcting fixed pattern noise includes capturing a focused image and an unfocused image via a variable focus lens. Fixed pattern noise represented in the unfocused image is filtered from the focused image. The unfocused image represents a low-pass filtered component of the focused image; subtracting the unfocused image from the focused image results in a high-pass and fixed pattern noise filtered focused image. Image capture and focus of the variable focus lens are synchronized to remove transitional frames from the image stream.