... IVS(intelligent video analysis system),like perimeter detection,items care, flowmeter, abnormal video signal diagnosis17. DVR,NVR and HVR, 3 ... (intelligent video analysis system), like perimeter detection, items care, flowmeter, abnormal video signal diagnosis.1 Permeter detection (PEA)(1) ... stopped in the forbidden parking area on the street.3 Flowmeter count (CPC)The head count of people passing in ...