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Other popular uses include security surveillance, computer vision, video broadcasting, and for recording social videos.
The video streams provided by webcams can be used for a number of purposes, each using appropriate software: Most modern webcams are capable of capturing arterial pulse rate by the use of a simple algorithmic trick.
For a more complete list see Comparison of webcam software.
Special software can use the video stream from a webcam to assist or enhance a user's control of applications and games.
Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).