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Optical-Mechanical Motion Capture System for Virtual Reality Applications

[+] Author Affiliations
Ulises Zaldivar-Colado, Xiomara Zaldivar-Colado, Claudia Marmolejo-Rivas, Carlos León-Sánchez, Roberto Bernal-Guadiana

Universidad Autónoma de Sinaloa, Mazatlán, SIN, México

Diego Murillo-Campos, Carolina Martinez-Tirado

Universidad de Occidente, Mazatlán, SIN, México

Paper No. WINVR2011-5544, pp. 225-233; 9 pages
  • ASME 2011 World Conference on Innovative Virtual Reality
  • ASME 2011 World Conference on Innovative Virtual Reality
  • Milan, Italy, June 27–29, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4432-8
  • Copyright © 2011 by ASME


Actually, virtual reality is introduced in so many areas, such as medicine, automotive industry, robotics, entertainment, etc. A common interest of these areas is related with the user interaction, or with devices allowing users to interact with virtual reality. In this work we present the development of a prototype to capture the user’s fingers motion, obtaining the flexion angles of the fingers and representing them in a virtual assembly environment. The developed prototype is composed by a mechanical system which transmits the generated flexion movements of the medial and proximal phalanges. The movement is transmitted using a nylon cable, which is captured by the use of a webcam. The offset of the cable is measured, and this permits to obtain the angular variation of the generated flexion by the phalanges. The Lucas-Kanade algorithm is used to follow, in a high velocity, the cable displacement. Experimental results showed that angular resolution is very high and angular capture-rate is over 30fps. We present an implementation of our prototype in a virtual assembly environment.

Copyright © 2011 by ASME



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