3 ms·
My guess would be that's not "true" LIDAR. It's probably something akin to the Kinect hardware; an infrared pattern is projected, then distance is inferred depe
by moralestapia 2y ago
My guess would be that's not "true" LIDAR. It's probably something akin to the Kinect hardware; an infrared pattern is projected, then distance is inferred depending on how it gets distorted, while LIDAR sends photons and measures them back (technically the first does that as well but w/e).
- Animats 2y agoThere have been Kinect sensors with true time of flight. The first Kinect used triangulation, but Microsoft switched to time-of-flight for later models.[1] There are several ways to do this. At short ranges, they all work. Then it gets hard, because not much energy is coming back. [1] https://arxiv.org/abs/1505.05459 https://arxiv.org/abs/1505.05459
- moralestapia 2y agoNice, I didn't know that!
- solardev 2y agoI don't think Apple would outright mislabel it if it were some other kind of depth sensor. iPhones do also combine data from the visible light cameras to aid in depth mapping, but the lidar sensor is a separate emitter and receiver. As far as I can tell, it's true lidar? Technical analysis: https://4da.tech/?p=582 https://4da.tech/?p=582 Being used for science: https://www.nature.com/articles/s41598-021-01763-9 https://www.nature.com/articles/s41598-021-01763-9