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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 2 — Jan. 10, 2004
  • pp: 379–390

Virtual three-dimensional blackboard: three-dimensional finger tracking with a single camera

Andrew Wu, Khurram Hassan-Shafique, Mubarak Shah, and N. da Vitoria Lobo  »View Author Affiliations


Applied Optics, Vol. 43, Issue 2, pp. 379-390 (2004)
http://dx.doi.org/10.1364/AO.43.000379


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Abstract

We present a method for three-dimensional (3D) tracking of a human finger from a monocular sequence of images. To recover the third dimension from the two-dimensional images, we use the fact that the motion of the human arm is highly constrained owing to the dependencies between elbow and forearm and the physical constraints on joint angles. We use these anthropometric constraints to derive a 3D trajectory of a gesticulating arm. The system is fully automated and does not require human intervention. The system presented can be used as a visualization tool, as a user-input interface, or as part of some gesture-analysis system in which 3D information is important.

© 2004 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing

Citation
Andrew Wu, Khurram Hassan-Shafique, Mubarak Shah, and N. da Vitoria Lobo, "Virtual Three-Dimensional Blackboard: Three-Dimensional Finger Tracking with a Single Camera," Appl. Opt. 43, 379-390 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-2-379

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