Evaluating dual-view perceptual issues in handheld augmented reality: device vs. user perspective rendering

  • Authors:
  • Klen Čopič Pucihar;Paul Coulton;Jason Alexander

  • Affiliations:
  • Lancaster University, Lancaster, United Kingdom;Lancaster University, Lancaster, United Kingdom;Lancaster University, Lancaster, United Kingdom

  • Venue:
  • Proceedings of the 15th ACM on International conference on multimodal interaction
  • Year:
  • 2013

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Abstract

In handheld Augmented Reality (AR) the magic-lens paradigm is typically implemented by rendering the video stream captured by the back-facing camera onto the device's screen. Unfortunately, such implementations show the real world from the device's perspective rather than the user's perspective. This dual-perspective results in misaligned and incorrectly scaled imagery, a predominate cause for the dual-view problem with potential to distort user's spatial perception. This paper presents a user study that analyzes users' expectations, spatial-perception, and their ability to deal with the dual-view problem, by comparing device-perspective and fixed Point-of-View (POV) user-perspective rendering. The results confirm the existence of the dual-view perceptual issue and that the majority of participants expect user-perspective rendering irrespective of their previous AR experience. Participants also demonstrated significantly better spatial perception and preference of the user-perspective view.