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PAA
2002

Layered Representation of a Video Shot with Mosaicing

9 years 1 months ago
Layered Representation of a Video Shot with Mosaicing
: This paper presents a motion segmentation method useful for representing efficiently a video shot as a static mosaic of the background plus sequences of the objects moving in the foreground. This generates an MPEG-4 compliant, layered representation useful for video coding, editing and indexing. First, a mosaic of the static background is computed by estimating the dominant motion of the scene. This is achieved by tracking features over the video sequence and using a robust technique that discards features attached to the moving objects. The moving objects get removed in the final mosaic by computing the median of the grey levels. Then, segmentation is obtained by taking the pixelwise difference between each frame of the original sequence and the mosaic of the background. To discriminate between the moving object and noise, temporal coherence is exploited by tracking the object in the binarised difference image sequence. The automatic computation of the mosaic and the segmentation pr...
Emanuele Trucco, Francesca Odone, Andrea Fusiello
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where PAA
Authors Emanuele Trucco, Francesca Odone, Andrea Fusiello
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