Hikvision Metadata performance based on ONVIF & ISAPI

Hikvision 5 Series & 7Series cameras are be able to provide metadata based on ONVIF and ISAPI, which provides the ability to support the function of quick retrieving the relevant images from abundant video data in the backend device. Related Products: 7-series: https://www.hikvision.com/europe/Products/Network-Camera/DeepinView/DeepinView-Face-Capture-Camera 5-series: https://www.hikvision.com/europe/Products/Network-Camera/Ultra-Series(SmartIP)/5-Series/4MP