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Proceedings Paper

Psychovisual aspects of viewing stereoscopic video sequences
Author(s): Wa James Tam; Lew B. Stelmach; Philip J. Corriveau
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Paper Abstract

In comparison to conventional displays, 3D stereoscopic displays convey additional information about the 3D structure of a scene by providing information that can be used to extract depth. In the present study we evaluated the psychovisual impact of stereoscopic images on viewers. Thirty-three non-expert viewers rated sensation of depth, perceived sharpness, subjective image quality, and relative preference for stereoscopic over non-stereoscopic images. Rating methods were based on procedures described in ITU- Rec. 500. Viewers also rated sequences in which the left- and right-eye images were processed independently, using a generic MPEG-2 codec, at bit-rates of 6, 3, and 1 Mbits/s. The main finding was that viewers preferred the stereoscopic version over the non-stereoscopic version of the sequences, provided that the sequence did not contain noticeable stereo artifacts, such as exaggerated disparity. Perceived depth was rated greater for stereoscopic than for non-stereoscopic sequences, and perceived sharpness of stereoscopic sequences was rated the same or lower compared to non-stereoscopic sequences. Subjective image quality was influenced primarily by apparent sharpness of the video sequences, and less so by perceived depth.

Paper Details

Date Published: 30 April 1998
PDF: 10 pages
Proc. SPIE 3295, Stereoscopic Displays and Virtual Reality Systems V, (30 April 1998); doi: 10.1117/12.307169
Show Author Affiliations
Wa James Tam, Communications Research Ctr. (Canada)
Lew B. Stelmach, Communications Research Ctr. (Canada)
Philip J. Corriveau, Communications Research Ctr. (United States)


Published in SPIE Proceedings Vol. 3295:
Stereoscopic Displays and Virtual Reality Systems V
Mark T. Bolas; Mark T. Bolas; Scott S. Fisher; Scott S. Fisher; John O. Merritt, Editor(s)

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