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:
Nov. 16, 2021
Filed:
Dec. 20, 2016
Applicant:
Sony Depthsensing Solutions Sa/nv, Brussels, BE;
Inventor:
Laurent Guigues, Brussels, BE;
Assignee:
Sony Depthsensing Solutions SA/NV, Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06K 9/46 (2006.01); G06K 9/52 (2006.01); G06K 9/56 (2006.01); G06K 9/62 (2006.01);
U.S. Cl.
CPC ...
G06K 9/4671 (2013.01); G06K 9/00355 (2013.01); G06K 9/4614 (2013.01); G06K 9/52 (2013.01); G06K 9/56 (2013.01); G06K 9/6212 (2013.01); G06K 2009/4666 (2013.01); G06T 2207/10028 (2013.01);
Abstract
Described herein is a method for detecting keypoints in three-dimensional images in which a three-dimensional image of a scene captured by a depth sensing imaging system is processed using a distance-independent keypoint filter. Keypoints are derived from the three-dimensional image by determining a mean shift field and using x- and y-components of the mean shift field to derive intersections of 0-isolines thereof. Positive and negative keypoints or nodes are connected to one another, positive to positive and negative to negative, to form a keygraph structure.