Video features, including faces, shapes, models and colors can be observed and tracked to produce a corresponding form of control.

For example, the position of a single light source can be tracked and used to emulate a mouse pointer, a head-mounted light would enable hands-free computing and would greatly improve computer accessibility.

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The term "webcam" (a clipped compound) may also be used in its original sense of a video camera connected to the Web continuously for an indefinite time, rather than for a particular session, generally supplying a view for anyone who visits its web page over the Internet.

Some of them, for example, those used as online traffic cameras, are expensive, rugged professional video cameras.

A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.

When "captured" by the computer, the video stream may be saved, viewed or sent on to other networks via systems such as the internet, and emailed as an attachment.

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No matter what your shipping needs, Walmart's got you covered.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.You can also lock-release Flash by pressing on the "puzzle" icon in the top right corner of your browser.You are currently using the Flash-version of the chat: it's fully featured and optimized.Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).