Image analysis – Image segmentation
Patent
1994-10-19
1997-05-20
Couso, Yon J.
Image analysis
Image segmentation
382282, G06K 900
Patent
active
056319754
ABSTRACT:
Images having a moving pattern against a fixed or quasi-fixed background are segmented by determining a silhouette of the moving pattern, and forming a segmentation image filling the silhouette. On a pixel-by-pixel basis, differences are determined between the current image and previous images of a sequence, and compared with a threshold to form a binary image of background and useful zone. The boundaries of the useful zone are regularized, and irregularities in the useful zone and in the background are suppressed. A segmentation image is then formed within the silhouette.
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Bouchard Lionel
Riglet Philippe
Sirat Jaques-Ariel
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