Glass Hunter

What it does

Ever noticed the 'M' numbers on pint glasses? They show the year it was made. Once we found this out, me and my friends would 'collect' these glasses by sending photos of finds to our group chat, until we had the idea to build an app to do it. GlassHunter turns spotting rare glasses into a social game - challenge friends, collect finds, race to spot the first M26 of 2026. It's Pokémon GO for pub enthusiasts. 🍺

• GT
  Glasses to detect smart-glasses that have camerasNov 2025 · github.com · ▲509

  Hi! Recently smart-glasses with cameras like the Meta Ray-bans seem to be getting more popular. As does some people's desire to remove/cover up the recording indicator LED. I wanted to see if there's a way to detect when people are recording with these types of glasses, so a little bit ago I started working this project. I've hit a little bit of a wall though so I'm very much open to ideas! I've written a bunch more on the link (+photos are there), but essentially this uses 2 fingerprinting approaches: - retro-reflectivity of the camera sensor by looking at IR reflections. mixed results…

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