Virtual Environment Displays Based on Visual Physiology
Shu Li · 2001
Virtual environmen(VE) is always involved in some visual deficit. In order to avoid causing visual problem by VE, two approaches for design of display system are presented, which are based separately on the inner mechanism of vision and on new technique of system hardware. In the first approach, for further study on VE, a new term named “the depth of field in vision”, which is the max scenes depth imaging clearly on retina when the eye status mainly for vergence and accommodation is fixed, is presented for the first time and is illustrated detailedly with its concept, principle and measurement method. This offers a new theory infrastructure for display system design to make immersion more comfortable against dizziness, eyestrain etc. In the second approach, the principle, application as well as their advantage or disadvantage of some new techniques in VE such as eye tracking system, liquid crystal glasses with microcomputer are analyzed. The adaptive capability of human vision is also concerned at the end of the paper.