Abstract
Tracking persons on a stage with velocity-measuring LiDAR sensors finds and follows performers without markers, without an operator and independently of stage lighting. Two or more sensors at separate positions measure the radial velocity of every point. Moving points are separated from the static stage and scenery within one scan by their velocity, so no background model is needed and moving scenery does not disturb tracking. The point clouds of all sensors are registered into one stage coordinate system, fused and clustered into persons, each with a foot point, body height and velocity, and tracked over time; persons who stop are kept. Identities come from a camera with person detection or from simple low-rate beacons. The same positions aim moving lights, place voices in a spatial audio system and block stage machinery or pyrotechnics while anyone is in a hazard zone. Several sensors with partly overlapping fields cover large stages and runways.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Honold, Michel; Hermann, Paul; and OpenFollow Project, "Tracking Persons on a Stage with Velocity-Measuring LiDAR Sensors", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/12462