Oct 2011
Such data are outlined by the following table:CountryTotal market million of dollarsTotal imports million of dollarsImports from U. S. million of dollarsU. S share2002 2004%Change 2002 2004%Change 2002 2004%Change Australia 950 1400 47% 380 560 47% 185 285 54% 51% Source: 4239321. pdf. The U.Oct 2011
What kind of motion it detects depends on the user’s custom settings. In the case of a home security camera, this will typically include any moving objects, and people in particular. The great feature of motion detection home security camera is its ability to send alerts the second it begins to record movement based on its settings. One of the great things about motion detection is that your camera still works for you in the background even when you’re away or logged out of the system. The best way to understand how motion detection works is to first look at how a camera functions. Inside every camera is the image sensor which the lens of the camera directs light to. The moment light reaches the image sensor, pixels then record how much light they receive. These dark and light areas then form the video images that we see. Motion detection works by comparing successive video images. So if the pattern of light changes between frames a change in pixels the smart camera concludes that something has moved and starts to record. As it begins to record, it also sends you an alert.