Interaction Analysis

FindFace Multi can provide interaction tracking and analysis. To harness this functionality, you must enable face clustering.

When tracking interactions, the system automatically determines a circle of people with whom a person has previously been in contact. For each person from the first circle, the system builds another circle of connected people, and so on. Overall, interaction analysis is three-circle deep.

Note

You can track interactions between bodies and cars as well. Access this functionality via HTTP API. Note that body and car clustering must be enabled beforehand.

The interaction analysis is available on the Interaction Analysis tab.

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Tip

You can also display the circle of connected people right from the Clusters tab by clicking on the handshake icon.

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On the Interaction Analysis tab, click on a person to display their first circle of interactions and associated events. Keep on to unveil the entire tree of interactions.

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You can apply available filters to every circle.

Tip

For example, you can find older adults or people without a face mask who are directly or indirectly related to a potentially contagious person.

Tip

When searching through a circle of interactions, apply the following settings:

  • Use the last event: use the last event of an episode to analyze contacts between individuals. In this case, having found truly associated people is most probable as they simultaneously leave a camera’s field of view. If the option is disabled, the system will use the best event of an episode for interaction search.

  • Relations threshold: maximum time in seconds between the appearance of individuals to consider them related.

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