virtual reality and the dynamics of human vision

Human vision sensation includes foveal, parafoveal, and peripheral vision. Foveal vision is the middle of one's span of vision and gives the highest image resolution and focus. Image accuracy drops off as one moves from the foveal field to the outer portions of the parafoveal field. Nonetheless, people have amazing responsivity to movement, even for their peripheral vision. When computing power to make three-dimensional pictures in a virtual world is limited, Virtual Reality systems can build upon this structure in human sight perception. They can create pictures with more resolution in the center of vision of the user's span of vision. Such systems must also be able to adjust picture resolution rapidly in reaction to motion of one's head. ACSys VE Lab. for more VR information.

With current technologies, Virtual Reality (VR) is generally defined as involving at least: much of the total human range of sight and audio range; computer tracking and reactions to the position, angle, and movement of the participating person's head at between 50 and 100 reactions each second; and more than basic computer responding actions to the location, orientation, movement, and patterning of the one's hand. With further progress in technology, computer responding actions to the direction of the rest of one's body, quicker responses, better haptic interaction, and involvement of the senses of smell and taste may also become expected for virtual reality. Also, Virtual Tours St. Louis, Missouri has further information on this topic.

Virtual Reality Memory also deals with these topics.