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. 23, 2017
Filed:
Aug. 12, 2015
Applicant:
Smart Technologies Ulc, Calgary, CA;
Inventors:
David E Holmgren, Calgary, CA;
Daniel McReynolds, Calgary, CA;
Assignee:
SMART Technologies ULC, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06T 7/20 (2017.01); H04N 5/247 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0354 (2013.01); G06F 3/041 (2013.01); G06T 7/20 (2013.01); H04N 5/247 (2013.01);
Abstract
The present invention relates to a method and system of improved pointer recognition. A camera-based interactive system has two cameras with fields of view observing an interactive surface. A processor receives a plurality of video frames from the cameras and recognizes a pointer within the video frames. Motion blur of the pointer is compensated to determine the pointer type from the compensated frames using a model-based approach.