Video Analytics Events

Playback section has a special investigation mode that allows browsing the archive based on the video analytics events. These events may come from:

• server-side video contents analysis (VA) engine,

• server-side VA engine,

• server-side Open VCA engine,

• and camera-side analytics (onboard/edge VCA).

Events from the server side must be pre-configured to be recorded together with the video stream. These are displayed in Macula Monitor and can be investigated and also exported to an external file in the comma-separated format.

VCA event data are available for server-side analytics and also for camera-side VCA in case metadata are supported for that particular camera brand. For the exact manufacturer list with VCA metadata support, please contact GSF representative.

In playback, VA and VCA metadata is represented by a thick white stripe over the footage. This means, these events can be searched for in the Playback mode. To access the VA investigation panel, go to playback mode in Macula Monitor and click the VCA button in the top right corner.

Earlier Macula versions had a continuous timeline stripe for VA metadata. Starting from v.1.20.0, metadata are displayed similarly to motion, with the timeline overlay only present during periods with analytics detections.

The appeared panel will allow you to specify the search criteria, which are:

• Source: a channel currently present in the layout that has VCA enabled

  • Search interval: time range to look for the events in

  • Search for: VCA item to search for, can be an object, a counter or an event

  • Object: all entries containing object appearance according to the VCA/VA object classification

  • Counter: all moments where any counter value was changed

  • Event: all entries from triggered VCA rules

• Class name: VCA class name (full or partial) according to the VCA/VA internal object classification

For the built-in video analytics engine, you can search by VA objects, events, rule names (full or partial), or zones.

When ready, press Search to get the results based on your refinements. Click any result in the list to jump to it in playback, then press the play button below the timeline to start viewing the footage.

Found data can be saved into a CSV file (comma-separated values) that can be later parsed or opened with MS Excel-like applications. To do this, simply click the Export CSV... button below the search result list and specify your desired file name and path.