Refcam
Type of camera used in sports From Wikipedia, the free encyclopedia
A Refcam (also known as Referee cam or Umpire cam) is a special type of broadcast point-of-view camera used in sports and worn by a referee or umpire during the game.

Usage
Refcams are being used in various sports like american football,[1][2] ice hockey,[3][4][5] field hockey,[6] baseball[7] and other.
See also
References
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