ABSTRACT
As cloud virtual reality (VR) terminals provide users with entry to the virtual world, the quality of these terminals plays an important role in user experience. Compared with traditional video and game services, cloud VR services have revolutionary service experience modes, such as full immersion and cloud interaction. The main body of a VR terminal is the headset, which is a display equipped with a closed mask near the user’s eyes. VR headsets display images in the direction that users face. Because these images are isolated from the real world, users feel as if they are in virtual spaces. Cloud VR terminals need to access networks through 5G or Wi-Fi and perform image decoding, as well as local rendering, on video streams received from the cloud. Eye tracking tries to model and simulate eye motions by sensing eye movement. Eye tracking technology was first used in medicine and has since been applied commercially on PCs and smartphones.
