Gaze-Dependent Refresh Technique for a Low-Power VR System

The refresh rate is important factor of display as it significantly enhances the user experience. Nonetheless, simply enhancing the refresh rate can result in higher power consumption of display driver ICs or increased computational cost for complex 3D image rendering. In this paper, we proposed a method to control the refresh rate of specific area based on the user’s gaze point. It may reduce the overall user experience, leading viewers to perceive the videos as choppy. To address this concern, we conducted a psychophysical experiment. The result shows that users may not perceive the videos as choppy even when applying our proposed method. Based on the that, we expect that our proposed method will lead to improvements in power consumption and computational efficiency without deteriorating the user experience.