Views of the virtual environment before and after subtle, dynamic FOV modification. (Photo: Ajoy Fernandes and Steve Feiner)

Researchers have developed a method of combating virtual reality (VR) sickness that can be applied to consumer head-worn VR displays such as the Sony PlayStation VR. The approach dynamically, yet subtly, changes the user’s field of view (FOV) in response to visually perceived motion.

Software functions as a pair of “dynamic FOV restrictors,” and can partially obscure each eye’s view with a virtual soft-edged cutout. The team determined how much the user's FOV should be reduced, and the speed with which it should be reduced and then restored, and tested the system. The team targeted scenarios in which users move in the virtual environment in a way that intentionally differs from how they move in the real world. These include games in which they are physically standing or sitting while walking, running, driving, or flying in the virtual world.