Title:
VISION-BASED POINTER TRACKING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO2003032143
Kind Code:
A3
Abstract:
A vision-based pointer tracking and object recognizing system is presented. The system comprises a computer system including a processor, a memory coupled with the processor, an input coupled with the processor for receiving a series of image frames from a camera, and an output coupled with the processor for outputting a path of a pointer. The computer system includes a tracking system and a recognition system which are configured to accurately and efficiently track the fingertip of a user in order to allow the user to perform coarse segmentation of an object in preparation for object classification. The tracking system includes a Robust Tracking Filter that accomodates uncertainties. The object recognition system incorporates an invariant object recognition technique that allows objects to be recognized despite changes in user viewpoint.
Inventors:
KEATON PATRICIA (US)
DOMINGUEZ SYLVIA (US)
SAYED ALI H (US)
DOMINGUEZ SYLVIA (US)
SAYED ALI H (US)
Application Number:
PCT/US2002/033265
Publication Date:
June 24, 2004
Filing Date:
October 12, 2002
Export Citation:
Assignee:
HRL LAB LLC (US)
KEATON PATRICIA (US)
DOMINGUEZ SYLVIA (US)
SAYED ALI H (US)
KEATON PATRICIA (US)
DOMINGUEZ SYLVIA (US)
SAYED ALI H (US)
International Classes:
G06F3/033; G06F3/042; (IPC1-7): G06K11/08; G06F3/00; G06T7/00
Foreign References:
| US5423554A | 1995-06-13 |
Other References:
JENNINGS C: "Robust finger tracking with multiple cameras", RECOGNITION, ANALYSIS, AND TRACKING OF FACES AND GESTURES IN REAL-TIME SYSTEMS, 1999. PROCEEDINGS. INTERNATIONAL WORKSHOP ON CORFU, GREECE 26-27 SEPT. 1999, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 26 September 1999 (1999-09-26), pages 152 - 160, XP010356542, ISBN: 0-7695-0378-0
MOHAN MALLADI K ET AL: "Gauss-Markov model formulation for the estimation of time-varying signals and systems", TENCON '98. 1998 IEEE REGION 10 INTERNATIONAL CONFERENCE ON GLOBAL CONNECTIVITY IN ENERGY, COMPUTER, COMMUNICATION AND CONTROL NEW DELHI, INDIA 17-19 DEC. 1998, PISCATAWAY, NJ, USA,IEEE, US, 17 December 1998 (1998-12-17), pages 166 - 169, XP010355488, ISBN: 0-7803-4886-9
IRENE YU-HUA GU ET AL: "Colour image segmentation using adaptive mean shift filters", PROCEEDINGS 2001 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING. ICIP 2001. THESSALONIKI, GREECE, OCT. 7 - 10, 2001, INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, NEW YORK, NY: IEEE, US, vol. 1 OF 3. CONF. 8, 7 October 2001 (2001-10-07), pages 726 - 729, XP010564962, ISBN: 0-7803-6725-1
MOHAN MALLADI K ET AL: "Gauss-Markov model formulation for the estimation of time-varying signals and systems", TENCON '98. 1998 IEEE REGION 10 INTERNATIONAL CONFERENCE ON GLOBAL CONNECTIVITY IN ENERGY, COMPUTER, COMMUNICATION AND CONTROL NEW DELHI, INDIA 17-19 DEC. 1998, PISCATAWAY, NJ, USA,IEEE, US, 17 December 1998 (1998-12-17), pages 166 - 169, XP010355488, ISBN: 0-7803-4886-9
IRENE YU-HUA GU ET AL: "Colour image segmentation using adaptive mean shift filters", PROCEEDINGS 2001 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING. ICIP 2001. THESSALONIKI, GREECE, OCT. 7 - 10, 2001, INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, NEW YORK, NY: IEEE, US, vol. 1 OF 3. CONF. 8, 7 October 2001 (2001-10-07), pages 726 - 729, XP010564962, ISBN: 0-7803-6725-1
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