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:
May. 21, 2013
Filed:
Jul. 22, 2011
Yunqian MA, Plymouth, MN (US);
Shrikant Rao, Bangalore, IN;
Yunqian Ma, Plymouth, MN (US);
Shrikant Rao, Bangalore, IN;
Honeywell International Inc., Morristown, NJ (US);
Abstract
An example embodiment includes a method for identifying true feature matches from a plurality of candidate feature matches for vision based navigation. A weight for each of the plurality of candidate feature matches can be set. The method also includes iteratively performing for N iterations: calculating a fundamental matrix for the plurality of candidate feature matches using a weighted estimation that accounts for the weight of each of the plurality of candidate feature matches; calculating a distance from the fundamental matrix for each of the plurality of candidate feature matches; and updating the weight for each of the plurality of candidate feature matches as a function of the distance for the respective candidate feature match. After N iterations candidate feature matches having a distance less than a distance threshold can be selected as true feature matches.