Some Results in Visual Surveillance
VIVA Research Lab

Principal investigator: Robert Laganiere

Monitoring the entrance of a room

The basic steps:


Original Image

Foreground Extraction
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People Detection

People Tracking

Result of observation over an extended period of time. Scene containing peoples are automatically detected and saved. These ones are also classified as entering or leaving events. Persons in each of these events are matches based on clothing color histograms in order to associate a sequence showing a person leaving a room with the previously recorded sequence showing that same person entering.

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Entering Events

Leaving Events

Participant: Daniel Wojtaszek, M.Sc.

Publications:

Daniel Wojtaszek and Robert Laganière,
Tracking and Recognizing People in Colors using the Earth Mover's Distance,
in IEEE Workshop on Haptic Virtual Environments and their Application, pp. 13-18, Ottawa, Ontario, 2002.
PDF [0.2 mb]

Daniel Wojtaszek and Robert Laganière,
Using Color Histograms to Recognize People in Real Time Visual Surveillance,
in Int. Conf. on Multimedia, Internet and Video Technologies, pp. 261-264, Greece, 2002.
PDF [0.2 mb]

Identifying Object Depositing and Removal Events

Objects added to the scene or removed from the scene are automatically detected and annotated. Object apparitions are enclosed by a rectangle, object disappearances are marked by an X.

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Original Sequence

Processed Sequence

Another example:
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Processed Sequence

Participant: Benjamin Pujol, Universite de Nantes

Car tracking

Moving objects are tracked over time. A label is assigned to each object and the trace of its tracked path is memorized.

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Street Intersection Sequence

Participant: Mickael Biardeau, Ecole Superieure d'Ingenieur d'Annecy

Bird Detection

This objective is to detect birds for a bird deterrence application. Developed in collaboration with Noble Vision Robotics corp. Tests performed in a vineyard of the Niagara Valley. Detected bird are surrounded by a circle of size proportional to bird speed.

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Original Sequence

Processed Sequence


At the farm

Participant: Daniel Wojtaszek, M.Sc.