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:
Dec. 29, 2015
Filed:
Jun. 14, 2012
Yanghai Tsin, San Diego, CA (US);
Prasun Choudhury, San Diego, CA (US);
Murali Ramaswamy Chari, San Diego, CA (US);
Yanghai Tsin, San Diego, CA (US);
Prasun Choudhury, San Diego, CA (US);
Murali Ramaswamy Chari, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A reference in an unknown environment is generated on the fly for positioning and tracking. The reference is produced in a top down process by capturing an image of a planar object with a predefined geometric shape, detecting edge pixels of the planar object, then detecting a plurality of line segments from the edge pixels. The plurality of line segments may then be used to detect the planar object in the image based on the predefined geometric shape. An initial pose of the camera with respect to the planar object is determined and tracked using the edges of the planar object.