Abstract
Within a stereoscopic display the field of view (FOV) was held constant at 13.86Mo while the geometric field of view (GFOV) was varied across four levels: 0Mo (parallel), 13.86Mo (veridical), 50Mo and 100Mo. Participants performed a distance-matching task where they adjusted the distance of a standard track from the centre of the display to match the distance of a target track from the same point. The results indicated that while the least error occurred in the veridical GFOV condition, small variations of GFOV away from the veridical have little effect. Large differences between FOV and GFOV (36Mo and 86Mo) increased errors markedly. A trend toward better performance in the veridical GFOV condition relative to the parallel GFOV condition suggests that the use of linear perspective information in a stereoscopic display may facilitate more accurate spatial perception. Actual or potential applications of this work include stereoscopic display design in aviation and non-aviation settings.
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