What is video motion detection and what are its advantages & disadvantages?
A8: First of all, there are a couple major types of “video motion detection” available. Some are external auxiliary sensors. Video motion detection is a relatively new technology which is replacing external motion sensors and physical switches for alarm recording. It is generally found in two versions- those which use “markers” (kind of ‘blips’) which you place on the screen. These little dots create an internal alarm in the device when the video underneath them changes (figured as motion). The other kind uses a basic light adjustment feature. The main reported problems with the marker type are that- by the time a subject passes the area in which marker has been installed, more than half of the desired video will never have been recorded. The newer light sensitive type has been reported to create a lot of false alarms in light changing environments- such as slight movements in the sun during outdoor surveillance. On a positive note. The best digital motion detection is found within tru
