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Live video from the International Space Station includes internal views when the crew is on-duty and Earth views at other times.
The video is accompanied by audio of conversations between the crew and Mission Control.
Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).
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 have been used for augmented reality experiences online.
One such function has the webcam act as a "magic mirror" to allow an online shopper to view a virtual item on themselves.
A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.
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.
Improved video quality has helped webcams encroach on traditional video conferencing systems.
New features such as automatic lighting controls, real-time enhancements (retouching, wrinkle smoothing and vertical stretch), automatic face tracking and autofocus, assist users by providing substantial ease-of-use, further increasing the popularity of webcams.
By removing the IR filter of the webcam, IR LEDs can be used, which has the advantage of being invisible to the naked eye, removing a distraction from the user.
Track IR is a commercial version of this technology.The Webcam Social Shopper is one example of software that utilizes the webcam in this manner.