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:
Aug. 16, 2016
Filed:
Mar. 13, 2015
Sony Computer Entertainment Europe Limited, London, GB;
Antonio Martini, London, GB;
Abstract
A method generates a three-dimensional map of a region from successive images of that region captured from different camera poses. The method captures successive images of the region, detects a gravitational vertical direction in respect of each captured image, detects feature points within the captured images and designates a subset of the captured images as a set of keyframes each having respective sets of image position data representing image positions of landmark points detected as feature points in that image. The method also includes, for a captured image (i) deriving a camera pose from detected feature points in the image; (ii) rotating the gravitational vertical direction to the coordinates of a reference keyframe using the camera poses derived for that image and the reference keyframe; and (iii) comparing the rotated direction with the actual gravitational vertical direction for the reference keyframe to detect a quality measure of that image.