|ENVIMON Research Project|
The traffic monitoring application is based on the processing and interpretation of video sequences captured from an aircraft or a high building, tower etc. The general objective is to develop:
An effort will be made also to identify smaller objects (pedestrians, bicyclists) within the limitations of the image resolution.
Traffic objects are identified from a digital video sequence. The frame shown is captured from a helicopter at 200 meters.
Two imaging flights with a helicopter took place in June 2002 over the downtown area of Helsinki. This material has been used for the method development and testing during the project. The following video sequences demonstrate the data processing chain in case of a moving camera platform:
Another imaging campaign took place in summer 2005. Five intersections in Helsinki downtown area were monitored from the rooftop or the upper floor of a nearby building. No stabilization was required in this case. The following video sequences demonstrate the data obtained at short distance and with a non-vertical view:
In both cases, the results will be stored in the video format, which enables various post-processing methods according to the application. The user may e.g. restrict the area of interest within the scene and concentrate on specific trajectories or monitor those vehicles stopping during the sequence.
|Web administrator: Seppo.Vaatainen@vtt.fi|