Abstract
This investigation studies the contrast across boundaries of shadows which are cast by moving vehicles or selected stationary objects in a traffic scene onto the road surface. If a sufficient fraction of this subset of hypothetical shadow contours is overlapped by strong edge elements, such a finding is usually taken as a cue that directed sunshine illuminates the traffic scene. Otherwise, diffuse illumination is assumed. Experiments with different illumination states of a traffic scene indicate that such a conclusion appears justified in many cases. It is demonstrated, however, that much more complicated situations may occur which need detailed inferences in order to arrive at a consistent interpretation.
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References
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Ottlik, A., Nagel, HH. (2003). On Consistent Discrimination between Directed and Diffuse Outdoor Illumination. In: Michaelis, B., Krell, G. (eds) Pattern Recognition. DAGM 2003. Lecture Notes in Computer Science, vol 2781. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45243-0_54
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DOI: https://doi.org/10.1007/978-3-540-45243-0_54
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-40861-1
Online ISBN: 978-3-540-45243-0
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