ONVIF
ONVIF is an industry forum whose mission is to provide and promote standardized interfaces for effective interoperability of IP-based physical security products.
Standardized interfaces are documented as interface specifications available at Network Interface Specifications.
ONVIF scene description
The ONVIF scene description is an XML based data structure and set of data types that represents elements that are part of a scene.
It includes data structures used to represent object tracking data. Notable parts include,
tt:Objectused to represent the object state at a particular time.tt:Frameuse to represent the state of scene for a particular video frame. It includes an array oftt:Objectto represent the state of all tracked objects in a particular video frame.
For more information about ONVIF, see ONVIF Analytics Service Specification