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Proceedings Paper

Stereoscopic display using multimedia and depth sense test
Author(s): Jiaxin Wang; Zaixing Zhang; Peifa Jia; Zhen Ye
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Paper Abstract

A vision telepresence system was built in our lab, including stereoscopic display on a CRT and a spherical screen. Two images from two cameras are sent to two multimedia video cards (grand-video cards), Ml and Mr. The two cards, Ml and Mr, transform from two video signals of two cameras to RGB signals in its memory. The field synchronism signal of a VGA card is used as a switch, which takes the two RGB signals in Ml and Mr alternately and sends them into a CRT display or a projector for the spherical screen. In fact, the images of two cameras are put into multimedia cards at lower frequency, but are taken from multimedia cards and shown on CRT at higher frequency, the display may be at higher field frequency. The twinkle can be improved. In order to test the depth sense of the stereoscopic display, an experiment was made in our lab. The purpose of the test is to check the effect for the subjects to use the stereoscopic display to recognize the depth of objects. The test result gives some conclusion. (1) The stereo-display-mode (SDM) using 124 mm camera-distance is worse (has bigger depth-error) than the nude-eye-mode (NEM). But the SDM using 226 mm camera-distance is better than the NEM. (2) The 20 m object-distance has bigger depth-error than the 10 m object-distance. And the 30 m object-distance has very big depth-errors

Paper Details

Date Published: 15 May 1997
PDF: 8 pages
Proc. SPIE 3012, Stereoscopic Displays and Virtual Reality Systems IV, (15 May 1997); doi: 10.1117/12.274472
Show Author Affiliations
Jiaxin Wang, Tsinghua Univ. (China)
Zaixing Zhang, Tsinghua Univ. (China)
Peifa Jia, Tsinghua Univ. (China)
Zhen Ye, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 3012:
Stereoscopic Displays and Virtual Reality Systems IV
Scott S. Fisher; John O. Merritt; Mark T. Bolas, Editor(s)

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