Ocular Tactile Vibration Intervention in VR and Its Modeling Coupled with Visual Fusion

Abstract

The main application of virtual reality (VR) is to immerse users in the three-dimensional simulation environment and experience the virtual reality world. At present, VR products and content on the market have some problems to be solved, such as location information error, dizziness and discomfort, stereo vision error, sound mismatch and so on. Moreover, most VR applications use stereo vision perception, but that alone is not enough to fully immerse users in the VR environment. For a long time, the single way of information transmission makes people over rely on the visual channel, which leads to visual information overload. Compared with the receptive visual information obtained by a single channel, haptic interaction system is more bidirectional. The employment of tactile feedback technology in VR can provide better immersion and interaction, and expand the scope of user experience. Among the four main tactile stimuli-vibrant stimulus, pressure stimulus, electric stimulus and temperature stimulus, vibrant stimulus has higher comfort, consistency and better response speed and adjustable range. Therefore in this paper, combined with specific VR scene, external vibration was applied around the eyes to provide periocular stimulation, so as to explore the role of vibration in enhancing the immersion of VR equipments. A mathematical model of human visual-haptic interaction process is established, and it is verified that the artificial neural network model has good fitting effect in simulating human visual-haptic nervous system.