BRAILLE (Behaviour Recognition Agents in a Land Logistics Environment) is an application that assists human intelligence officers in recognising “interesting” behaviours from a surveillance picture. The BRAILLE agents analyse a stream of entity positions on the battlefield, and provide visual feedback through a map display to highlight movement patterns that are indicative of logistics supply chains, and group behaviours. The objective of the software is to utilise real-time or stored target positional movement data and then discern similar/dissimilar behaviour patterns and common land/air/sea usage patterns.

Similar behaviour patterns can include:

• quantitative, where several targets are ascertained to be grouped closely together at common periods; or 
• qualitative, where targets are matched to specific attributes, for example low speed or high speed, or heading in a specific direction, for example west-south-west from a specific location.

Common land (including sea and air) usage patterns can include:

• multiple usage of the same terrain;
• areas where targets stay put for some time; or
• areas that are re-visited repeatedly by the same targets.

The BRAILLE application was developed for Australia’s Defence Scientific Technology Organisation (DSTO).