Visual discomfort in stereoscopic displays : a review

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Visual discomfort has been the subject of considerable research in relation to stereoscopic and autostereoscopic displays, but remains an ambiguous concept used to denote a variety of subjective symptoms potentially related to different underlying processes. In this paper we clarify the importance of various causes and aspects of visual comfort. Classical causative factors such as excessive binocular parallax and accommodation-convergence conflict appear to be of minor importance when disparity values do not surpass one degree limit of visual angle, which still provides sufficient range to allow for satisfactory depth perception in consumer applications, such as stereoscopic television. Visual discomfort, however, may still occur within this limit and we believe the following factors to be the most pertinent in contributing to this: (1) excessive demand of accommodation-convergence linkage, e.g., by fast motion in depth, viewed at short distances, (2) 3D artefacts resulting from insufficient depth information in the incoming data signal yielding spatial and temporal inconsistencies, and (3) unnatural amounts of blur. In order to adequately characterize and understand visual discomfort, multiple types of measurements, both objective and subjective, are needed.
Original languageEnglish
Title of host publicationStereoscopic Displays and Virtual Reality Systems XIV, January 29-31, 2007, San Jose, California
EditorsA.J. Woods, J.O. Merritt, M.T. Bolas, I.E. McDowall
Place of PublicationBellingham, USA
ISBN (Print)9780819466037
Publication statusPublished - 2007
Eventconference; Stereoscopic Displays and Applications XVIII; 2007-01-29; 2007-01-31 -
Duration: 29 Jan 200731 Jan 2007

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


Conferenceconference; Stereoscopic Displays and Applications XVIII; 2007-01-29; 2007-01-31
OtherStereoscopic Displays and Applications XVIII


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