Webcam pay by phone
Special software can use the video stream from a webcam to assist or enhance a user's control of applications and games.
Webcams have been used for augmented reality experiences online.
In December 2011, Russia announced that 290,000 Webcams would be installed in 90,000 polling stations to monitor the Russian presidential election, 2012.
Webcams can be used to take video clips and still pictures.
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.
Researchers claim that this method is accurate to ±5 bpm.
Some of them, for example, those used as online traffic cameras, are expensive, rugged professional video cameras.