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:
Apr. 25, 2017
Filed:
May. 20, 2011
Daniel Wagner, Vienna, AT;
Alessandro Mulloni, Graz, AT;
Dieter Schmalstieg, Graz, AT;
Tobias Martin Langlotz, Graz, AT;
Daniel Wagner, Vienna, AT;
Alessandro Mulloni, Graz, AT;
Dieter Schmalstieg, Graz, AT;
Tobias Martin Langlotz, Graz, AT;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A mobile platform maps and tracks the orientation of the mobile platform in real-time as the mobile platform rotates. The mobile platform captures a plurality of camera images as the camera rotates and projects the plurality of camera images consecutively to a panoramic cylindrical map. The map is extended by projecting areas of any camera image that correspond to unmapped portions of the panoramic cylindrical map. Keypoints are extracted from mapped portions of the map and using the keypoints the orientation of the camera is determined. Accumulated error is removed when closing the panoramic cylindrical map by extending the map horizontally beyond 360 degrees to produce overlapping regions and extracting and matching keypoints from the overlapping regions. Additionally, an incorrect estimate of the initial orientation of the map may be corrected by determining the correct orientation and re-projecting the map onto a map with the correct orientation.