University of Hertfordshire

By the same authors

Distortions in stereoscopic displays

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages2-9
Number of pages8
Volume1669
ISBN (Print)0819408239
Publication statusPublished - 1992
EventStereoscopic Displays and Applications III - San Jose, CA, USA
Duration: 12 Feb 199213 Feb 1992

Conference

ConferenceStereoscopic Displays and Applications III
CitySan Jose, CA, USA
Period12/02/9213/02/92

Abstract

An investigation into two major potential sources of distortion in stereoscopic displays, namely magnification and vertical disparity, is presented. It is shown that there exist vertical as well as horizontal parallaxes in a 3-D image generated by a pair of TV cameras which are spatially rotated and spaced apart. This could well limit the potential usefulness of stereoscopic television systems, as it unfavorably affects the observer's ability to fuse the corresponding left and right images. An expression for disparity in the y-direction is derived which shows its direct relation to the rotation angle of the TV cameras from the parallel position. Display distortion due to the difference between the depth magnification and the magnification of the xy-plane is also examined. This class of distortion detracts from the realism of the display and hence has undesired effects in tasks involving visual inspection. The equations relating these magnifications to various parameters of the stereoscopic television system are given and the condition under which the two are identical is discussed.

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