VideoAnalytics XML Schema Definition (XSD): where is it?

[zachvictor]

I am consulting the "ONVIF Analytics Service Specification" Version 22.12 (December, 2022). In "Table 1: Namespaces used in this specification" on p. 7, this namespace URI is given as the "XML schema descriptions for the analytics service": http://www.onvif.org/ver20/analytics.

I thought that there would be an XML Schema Definition (XSD) for analytics. I could not locate one online. Visiting the link quoted above forwards to: https://www.onvif.org/ver20/analytics/rules.xsd.

I was wondering: is there an XSD for video analytics specifically (not rules)?

I am especially interested in the definition of frames containing object classification. For example, in "5.3.5 Object Class descriptor" there is an example of a Frame with object information:

<tt:Frame UtcTime="2010-11-10T12:24:57.721">
	<tt:Transformation>
		<tt:Translate x="-1.0" y="-1.0"/>
		<tt:Scale x="0.003125" y="0.00416667"/>
	</tt:Transformation
  
	<tt:Object ObjectId="22">
		<tt:Appearance>
			<tt:Shape>
				<tt:BoundingBox left="20.0" top="80.0" right="100.0" bottom="30.0"/>
				<tt:CenterOfGravity x="60.0" y="50.0"/>
			</tt:Shape>
			<tt:Class>
				<tt:Type Likelihood=”0.8”>Vehicle</tt:Type>
				<tt:Type Likelihood=”0.75”>Car</tt:Type>
				<tt:Type Likelihood=”0.3”>Truck</tt:Type>
			</tt:Class>
		</tt:Appearance>
	</tt:Object>
</tt:Frame>

There, tt refers to http://www.onvif.org/ver10/schema—but I cannot find a definition of Frame (or VideoAnalytics, or Object, etc.) in that schema.

Is the structure of VideoAnalytics and the related data structures—not the services, but the actual analytics metadata described in the ONVIF Analytics Service Specification defined formally in an XSD? If so, could you please point me in the right direction?

[svefredrik]

The schema is defined here. It uses datatypes from here and here.

[zachvictor]

Many thanks for responding so quickly and completely. These are the sources I needed.

[svefredrik]

Sure, no problem