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:
Nov. 16, 2004
Filed:
Apr. 24, 2003
Applicant:
Inventors:
Oliver Rockinger, Friedrichshafen, DE;
Juergen A. Topp, Friedrichshafen, DE;
Thomas Fechner, Berlin, DE;
Assignee:
LFK-Lenkflugkoerpersysteme GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/16 ;
U.S. Cl.
CPC ...
H01J 5/16 ;
Abstract
A method for the detection of helicopters from a flying platform utilizes an imaging sensor. Relevant image regions of two successive images are subtracted from one another with respect to picture elements, and within the thus formed differential image, segments are identified by means of a threshold value process. Straight lines of the same orientation are adapted to the identified segments, and intersection points are determined for all such straight lines. Identification of a helicopter is made based on a bunching of the intersection points.