DEVELOPMENTS

Functional specifications.

Functional specifications for ADVISOR based on analysis of user needs together with definitions of the model scenarios which will be used to evaluate performance. These scenarios will be supported by video data supplied by end users from various sites.

Test Bed 1.

The first test bed for laboratory evaluation of the individual processing functions based on a single recorded video input. The major functional components of Test Bed 1 are:

  • Camera calibration and scene modelling.

  • Local storage of video.

  • Monocular tracking of people.

  • Crowd flow monitoring.

  • Simple event detection and object description.

  • Preliminary HCI (Human Computer Interface).

This work will form the basis for more complex behaviour recognition across multiple cameras in Test Bed 2.

Figure 1. Test Bed 1.

Test Bed 2.

The second test bed for evaluation of the integrated processing functions will use data recorded at carefully chosen sites provided by end users. It will take multiple inputs from pre recorded video collected from multiple time synchronised cameras. The major functional components of Test Bed 2 are:

  • Updated version of the HCI.

  • Multi-camera tracking of people.

  • Behaviour description and classification.

  • Multi-camera storage of annotated images with off line search of the resulting archive.

The tracking and behaviour recognition functions will now operate from multiple video inputs with overlapping views to allow targets to be tracked as they move between the views of cameras linked by the ADVISOR system.

Figure 2. Test Bed 2.

Demonstrator.

A demonstrator to be installed at one or more major European metro sites, linking the ADVISOR system to live camera feed. The major functional components of the demonstrator are:

  • Full on site installation and demonstration of the system, including storage of annotated multi camera images with auditable trail and watermarking.

  • Demonstration of system learning by operator interaction.

  • Demonstration of system adaptation to changing light levels.

The crowd-monitoring module of Test Bed 2 will be updated to interact with live camera input and other ADVISOR components. The system components of Test Bed 2 will be installed on a number of separate video workstations with communications through a defined interface across a LAN.

Figure 3. The Demonstrator.

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Project Co-ordinator: Michael Naylor

Issue 5,  24 June 2003