A friend and I built a proof of concept of a similar thing. We could do almost per pixel playback of video on the audience without the K-pop Bluetooth style set

A friend and I built a proof of concept of a similar thing. We could do almost per pixel playback of video on the audience without the K-pop Bluetooth style setup or assigned seats. We used computer vision and infrared beacons and timing groups to expand out to tens of thousands of them.