Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Time multiplexing for increased FOV and resolution in virtual reality 
Research Areas
  • Engineering
We introduce a time multiplexing strategy to increase the total pixel count of the virtual image seen in a VR headset. This translates into an improvement of the pixel density or the Field of View FOV (or both) A given virtual image is displayed by generating a succession of partial real images, each representing part of the virtual image and together representing the virtual image. Each partial real image uses the full set of physical pixels available in the display. The partial real images are successively formed and combine spatially and temporally to form a virtual image viewable from the eye position. Partial real images are imaged through different optical channels depending of its time slot. Shutters or other schemes are used to avoid that a partial real image be imaged through the wrong optical channels or at the wrong time slot. This time multiplexing strategy needs real images be shown at high frame rates (>120fps). Available display and shutters technologies are discussed. Several optical designs for achieving this time multiplexing scheme in a compact format are shown. This time multiplexing scheme allows increasing the resolution/FOV of the virtual image not only by increasing the physical pixel density but also by decreasing the pixels switching time, a feature that may be simpler to achieve in certain circumstances.
SPIE Digital Optical Technologies. Internationales Congress Center.
Munich, Germany
Start Date
End Date
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Proceedings Volume 10335, Digital Optical Technologies 2017; 1033504 (2017)
  • Autor: Juan Carlos Miñano Dominguez (UPM)
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Dejan Grabovickic . (UPM)
  • Autor: Pablo Zamora (Limbak 4Pi S.L.)
  • Autor: Marina Buljan . (UPM)
  • Autor: Bharathwaj Appan Narasimhan (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Departamento: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)