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:
Feb. 22, 2011
Filed:
Mar. 10, 2008
Melissa Wiedemann, Kissimmee, FL (US);
Larry Phurrough, Orlando, FL (US);
Colleen Flynn Gratsch, Coca, FL (US);
Richard Skoblick, Oviedo, FL (US);
Harry C. Lee, Maitland, FL (US);
Melissa Wiedemann, Kissimmee, FL (US);
Larry Phurrough, Orlando, FL (US);
Colleen Flynn Gratsch, Coca, FL (US);
Richard Skoblick, Oviedo, FL (US);
Harry C. Lee, Maitland, FL (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A method and apparatus are provided for identifying linear objects in an image. Terrain types in the image are identified, and a gradient vector image, which identifies a gradient magnitude value and a gradient direction value for each pixel of the image, is generated from the image. Lines in the gradient vector image are identified using the identified terrain types in each portion of the image. It is determined whether the identified lines are perpendicular, collinear, or parallel to another line among the identified lines in the gradient vector image. Lines among the identified line are eliminated which are determined to not be perpendicular, collinear, or parallel to another line among the identified lines in the gradient vector image. Linear objects are identified using the remaining identified lines which have not been eliminated.