Title:
GESTURE TRACKING AND CLASSIFICATION
Document Type and Number:
WIPO Patent Application WO/2014/155131
Kind Code:
A3
Abstract:
A method of tracking the position of a body part, such as a hand, in captured images, the method comprising capturing (10) colour images of a region to form a set of captured images; identifying contiguous skin-colour regions (12) within an initial image of the set of captured images; defining regions of interest (16) containing the skin-coloured regions; extracting (18) image features in the regions of interest, each image feature relating to a point in a region of interest; and then, for successive pairs of images comprising a first image and a second image, the first pair of images having as the first image the initial image and a later image, following pairs of images each including as the first image the second image from the preceding pair and a later image as the second image: extracting (22) image features, each image feature relating to a point in the second image; determining matches (24) between image features relating to the second image and image features relating to in each region of interest in the first image; determining the displacement within the image of the matched image features between the first and second images; disregarding (28) matched features whose displacement is not within a range of displacements; determining regions of interest (30) in the second image containing the matched features which have not been disregarded; and determining the direction of movement (34) of the regions of interest between the first image and the second image.
Inventors:
LI CHANG-TSUN (GB)
YAO YI (GB)
YAO YI (GB)
Application Number:
PCT/GB2014/050996
Publication Date:
November 20, 2014
Filing Date:
March 28, 2014
Export Citation:
Assignee:
UNIV WARWICK (GB)
International Classes:
G06K9/00; G06K9/46; G06T7/20
Domestic Patent References:
| WO2012139241A1 | 2012-10-18 |
Foreign References:
| US20110110560A1 | 2011-05-12 | |||
| US20120106792A1 | 2012-05-03 |
Other References:
T. PLÖTZ ET AL: "Robust hand detection in still video images using a combination of salient regions and color cues for interaction with an intelligent environment", PATTERN RECOGNITION AND IMAGE ANALYSIS, vol. 18, no. 3, 1 September 2008 (2008-09-01), pages 417 - 430, XP055129056, ISSN: 1054-6618, DOI: 10.1134/S1054661808030097
RICHARZ J ET AL: "Real-time detection and interpretation of 3D deictic gestures for interactionwith an intelligent environment", 19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, 2008: ICPR 2008; 8 - 11 DEC. 2008, TAMPA, FLORIDA, USA, IEEE, PISCATAWAY, NJ, 8 December 2008 (2008-12-08), pages 1 - 4, XP031412202, ISBN: 978-1-4244-2174-9
TAEHEE LEE ET AL: "Multithreaded Hybrid Feature Tracking for Markerless Augmented Reality", IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, IEEE SERVICE CENTER, LOS ALAMITOS, CA, US, vol. 15, no. 3, 1 May 2009 (2009-05-01), pages 355 - 368, XP011448427, ISSN: 1077-2626, DOI: 10.1109/TVCG.2008.190
JIATONG BAO ET AL: "Dynamic hand gesture recognition based on SURF tracking", ELECTRIC INFORMATION AND CONTROL ENGINEERING (ICEICE), 2011 INTERNATIONAL CONFERENCE ON, IEEE, 15 April 2011 (2011-04-15), pages 338 - 341, XP031874583, ISBN: 978-1-4244-8036-4, DOI: 10.1109/ICEICE.2011.5777598
RICHARZ J ET AL: "Real-time detection and interpretation of 3D deictic gestures for interactionwith an intelligent environment", 19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, 2008: ICPR 2008; 8 - 11 DEC. 2008, TAMPA, FLORIDA, USA, IEEE, PISCATAWAY, NJ, 8 December 2008 (2008-12-08), pages 1 - 4, XP031412202, ISBN: 978-1-4244-2174-9
TAEHEE LEE ET AL: "Multithreaded Hybrid Feature Tracking for Markerless Augmented Reality", IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, IEEE SERVICE CENTER, LOS ALAMITOS, CA, US, vol. 15, no. 3, 1 May 2009 (2009-05-01), pages 355 - 368, XP011448427, ISSN: 1077-2626, DOI: 10.1109/TVCG.2008.190
JIATONG BAO ET AL: "Dynamic hand gesture recognition based on SURF tracking", ELECTRIC INFORMATION AND CONTROL ENGINEERING (ICEICE), 2011 INTERNATIONAL CONFERENCE ON, IEEE, 15 April 2011 (2011-04-15), pages 338 - 341, XP031874583, ISBN: 978-1-4244-8036-4, DOI: 10.1109/ICEICE.2011.5777598
Attorney, Agent or Firm:
BARKER BRETTELL LLP (EdgbastonBirmingham, West Midlands B16 8QQ, GB)
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