Virtual Window Viewing Geometry

John O. Merritt

doi:10.1117/12.948953

5 January 1989 Virtual Window Viewing Geometry

John O. Merritt

Proceedings Volume 1003, Sensor Fusion: Spatial Reasoning and Scene Interpretation; (1989) https://doi.org/10.1117/12.948953
Event: 1988 Cambridge Symposium on Advances in Intelligent Robotics Systems, 1988, Boston, MA, United States

Abstract

Operator performance with telerobotic systems may be improved by use of video displays that simulate direct vision through a window. This "virtual window" concept provides intuitive head-coupled aiming of the camera system field-of-view as the observer shifts left /right or up /down. It also provides correct motion parallax cues, thus eliminating the strange distortions seen in conventional stereoscopic video when the observer moves laterally in front of the display screen. Unlike other head-coupled approaches, this permits the use of fixed rack-mounted video displays (typically more comfortable for prolonged work sessions) that are relatively low-cost and readily available with color, high-resolution, and good image contrast (difficult to achieve in a helmet-mounted display). While this "virtual window" concept is relatively easy to implement for computer-generated imagery, real-world imaging requires special camera system geometry to make the display concept work. This paper reviews "virtual window" camera/display geometry and reports on initial performance testing with a simple prototype.

Citation Download Citation

John O. Merritt "Virtual Window Viewing Geometry", Proc. SPIE 1003, Sensor Fusion: Spatial Reasoning and Scene Interpretation, (5 January 1989); https://doi.org/10.1117/12.948953

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