The panel's built-in wide-angle colour camera captures images of the visitor and the resident views this on an internal monitor within their apartment.

这个面板通过内置的广角彩色摄像机来捕获访客的图像，且住户可以通过公寓房间里的内部监控器来查看图像。

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He decided to contact a specialist motoring solicitor and then received documentation for the case, which included two colour photos from the fixed camera in Fakenham Road.

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The lighting, camera angles, wall-colour, acoustics and furniture are all designed to make two Halo systems feel like a single room when linked together, and to do away with the 15 minutes of messing around usually required to set up videoconferencing gear.

ECONOMIST: Videoconferencing

To calculate the heart rate the camera detects tiny changes in the colour of the skin.

ECONOMIST: Facial monitoring