A WAVELET-BASED VEHICLES DETECTION ALGORITHM
Journal Title: Scientific Journals of Silesian University of Technology. Series Transport - Year 2012, Vol 2012, Issue 74
Abstract
The detection of vehicles, in video streams from road cameras, is generally performed by analyses of the occupancy of virtual detection fields defined in image frames. This principle of detection is sensitive to ambient light variations, vehicle shadows, and camera movement. The paper presents a method for detection of vehicles that uses transformed image frames. To facilitate detection each frame is converted into a vector of pixel values. Consecutive video vectors are transformed using one-dimensional DWT. Stopped vehicles are represented by stripes, whereas moving ones by checked patches. The width of a stripe indicates vehicle size, while the length shows how long the vehicle waited at the approach to the intersection.
Authors and Affiliations
Wiesław PAMUŁA
Keywords
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