Responding to disasters or\u00a0emergency medical situations requires triage — the process of determining the priority of treating patients based on the severity of their condition.<\/p>\n
Video motion detection employs a similar\u00a0process in that it\u00a0prioritizes\u00a0only the\u00a0important events\u00a0and area’s of a camera’s view\u00a0that you specify\u00a0to be included or excluded for motion detection.<\/p>\n
By prioritizing\u00a0video recordings, video motion detection (VMD)\u00a0saves on storage space and bandwidth\u00a0by not having to record everything making searching for occurences\u00a0easier as well.<\/p>\n
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Video motion detection function in similar ways for\u00a0both internal and external implementations in that they will:<\/p>\n
“External” VMD is a function in IP camera software <\/a>for cameras that don’t have this feature built-in.\u00a0\u00a0The\u00a0video management software program\u00a0analyzes\u00a0video sent from the cameras, analyzes the activity, and then triggers any alerts that you have programmed.<\/p>\n The\u00a0drawback to relying on IP camera software for motion detection is the drain on your\u00a0hardware platform’s <\/a>resources – running a VMD function is CPU intensive.<\/p>\n “Internal”\u00a0VMD\u00a0is\u00a0when\u00a0the IP cameras\u00a0or video servers <\/a>have\u00a0video motion detection capabilites built-in and can analyze and process the activity “at the edge,” that is, in the device itself thus\u00a0saving your\u00a0recording devices from having to work as hard.<\/p>\n For example,\u00a0a camera like the Axis\u00a0P1311 Fixed IP Camera <\/a>has built-in video motion detection, audio detection, and detection of camera tampering attempts.\u00a0 And the ACTi ACD-2000Q <\/a>is a 4-channel video server\u00a0with video motion detection and alarm responses.\u00a0<\/p>\n “Security Info Watch has a great article, “Thinking About Motion Detection?”<\/a>, by Kenneth\u00a0 Gentile that outlines how and what VMD features can benefit your IP surveillance application.<\/p>\n First he outlines the features of VMD that you should understand:<\/p>\n Next he talks about understanding what you want achieve from your surveillance system.\u00a0<\/p>\n Identify what can move:<\/p>\n Then establish\u00a0what “items of interest” you have that are “typically stationary and should not be moved” such as:<\/p>\n For background on the history of video motion detection in surveillance systems I suggest reading “Digital Video Motion Detection<\/a>” by Charlie Pierce.\u00a0 It’s\u00a0interesting to see that while this technology has been around for 25-30 years in analog\/CCTV systems, there were many hurdles to overcome.<\/p>\n Namely, false alarms were very prevelant.\u00a0 Recognizing all the bugs that had to be worked out gives me an appreciation and better understanding of how today’s advanced VMD functions work.<\/p>\n More importantly, the advanced algorithms at play here allow you to be creative and imaginative in what you ask of your IP surveillance system.<\/p>\n Tweet<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Responding to disasters or\u00a0emergency medical situations requires triage — the process of determining the priority of treating patients based on the severity of their condition. Video motion detection employs a similar\u00a0process in that it\u00a0prioritizes\u00a0only the\u00a0important events\u00a0and area’s of a camera’s view\u00a0that you specify\u00a0to be included or excluded for motion detection. By prioritizing\u00a0video recordings, video motion… Continue reading Internal VMD<\/h2>\n
Where\u00a0\/ How\u00a0to use VMD?<\/h2>\n
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VMD Past, Present, Future<\/h2>\n