Video Passthrough

A feature in VR headsets that uses external cameras to capture the real-world environment and display it on the headset's internal screens, allowing users to see their surroundings without removing the headset. Video passthrough enables augmented reality experiences on VR hardware by overlaying virtual elements on the camera feed of the real world. For accessibility applications, passthrough is valuable because it allows real-world visibility (e.g., seeing a keyboard instrument) while simultaneously displaying virtual assistive content (e.g., enlarged sheet music).