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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.

They have also become a source of security and privacy issues, as some built-in webcams can be remotely activated by spyware.

This can be applied to games, providing additional control, improved interactivity and immersiveness.

Free Track is a free webcam motion-tracking application for Microsoft Windows that can track a special head-mounted model in up to six degrees of freedom and output data to mouse, keyboard, joystick and Free Track-supported games.

Researchers claim that this method is accurate to ±5 bpm.

Webcams may be installed at places such as childcare centres, offices, shops and private areas to monitor security and general activity.

When sent to a remote location, the video stream may be saved, viewed or on sent there.

Unlike an IP camera (which connects using Ethernet or Wi-Fi), a webcam is generally connected by a USB cable, or similar cable, or built into computer hardware, such as laptops.With very-low-light capability, a few specific models of webcams are very popular to photograph the night sky by astronomers and astro photographers.Mostly, these are manual-focus cameras and contain an old CCD array instead of comparatively newer CMOS array.Webcam features and performance can vary by program, computer operating system, and also by the computer's processor capabilities.Video calling support has also been added to several popular instant messaging programs. Software is available to allow PC-connected cameras to watch for movement and sound, a computer e-mailed images of the burglar during the theft of the computer, enabling the owner to give police a clear picture of the burglar's face even after the computer had been stolen.The Webcam Social Shopper is one example of software that utilizes the webcam in this manner.

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