Software-Based Adjustment of Mobile Autostereoscopic Graphics Using Static Parallax Barriers

Martin Marko Paprocki, Kim Srirat Krog, Morten Bak Kristoffersen, Martin Kraus

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Abstract

We show that the autostereoscopic display of stereoscopic images using a static parallax barrier can be improved by adapting the rendering to the angle under which the user is looking at a mobile display; thus, ghosting artifacts and depth reversals can often be avoided even if the user tilts the mobile device. Instead of moving the barrier itself to compensate for a misplacement of the viewing zones in relation to the user, we employ dynamic pixel column shifts to provide a similar compensation in software. This requires a parallax barrier where each section covers two pixel columns at a time instead of one. The proposed method has been implemented using OpenGL shaders and a parallax barrier that was designed for a display of exactly half the resolution of the employed display. Technical tests showed a good separation of the left and right images for viewing angles of up to ± 30 degrees. Preliminary user tests indicate that an improvement in the stereoscopic experience can be achieved.
Original languageEnglish
Title of host publicationProceedings of the Working Conference on Advanced Visual Interfaces : AVI 2012
EditorsGenny Tortora, Stefano Levialdi, Maurizio Tucci
Number of pages4
PublisherAssociation for Computing Machinery
Publication date2012
Pages295-298
ChapterChapter 7 (Context Aware Pervasive Interfaces)
ISBN (Electronic)978-1-4503-1287-5, ACM
DOIs
Publication statusPublished - 2012
EventInternational Working Conference on Advanced Visual Interfaces - Anacapri, Italy
Duration: 21 May 201225 May 2012

Conference

ConferenceInternational Working Conference on Advanced Visual Interfaces
Country/TerritoryItaly
CityAnacapri
Period21/05/201225/05/2012
SeriesProceedings of the International Working Conference on Advanced Visual Interfaces

Keywords

  • autostereoscopy
  • display
  • parallax barriers
  • adaptive interface
  • mobile device
  • ghosting
  • context-aware interface
  • GPU

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