Navi

I built Navi for my grandpa, who is losing his sight. His Ray-Ban Meta glasses can describe a room, but they can't stop him walking into the coffee table or tell him where he left his keys. Navi keeps a 3D map of the places you go most, like your home and your workplace, built with Meta's MapAnything. The map builds itself in the background as you walk, so there's nothing to set up. A belt around your waist buzzes on the side where something is in the way. It also guides you back to things you put down, even when they're behind you. I walked my room fully blindfolded, guided by the buzzing alone. The goal is that in the places you know, you move safely on your own and depend less on other people. Built on Meta: Ray-Ban Meta glasses, MapAnything, DINOv2, SAM 3.1, Muse Spark, Muse Voice Transcribe, Muse Wonder, Muse Glimmer and Meta's denoiser. I tuned the belt's cues in a MuJoCo simulation (simulated users, not a human study).