MOVING SHADOW REPRESENTATION BASED ON A LEVEL CURVES DECOMPOSITION (WP-L3)

Author(s) : Henri Nicolas (INRIA, France)

Abstract : This paper proposes a new model to represent the moving shadow areas in video sequences. Classical models assume that the ambient light received in a shadow area is constant, but in practice it is not always the case. In order to define a more precise model, the variations of the ambient light are here taken into account thanks to a level curves decomposition of the shadow area. A B-Spline approximation of these level curves is introduced in order to get a smooth and compact representation. Experimental results shows that this model can efficiently represents shadow areas. Results have been applied to the problem of shadow removal for video editing applications.

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