Method and apparatus for detecting occlusion

Details Method and apparatus for detecting occlusion Method and apparatus for detecting occlusion

H - Electricity

04

N

H04N 7/36 (2006.01) G06T 7/20 (2006.01) H04N 5/14 (2006.01)

Patent

CA 2200733

The present invention provides a method and apparatus for detecting occluded areas in a video frame. A previous displacement vector field, DVF, is motion compensated (402) and used to provide an occlusion test parameter (404) which is compared to an optimal threshold (408) to detect occluded areas. The optimal threshold is calculated based on the previous DVF and a predetermined threshold (406).

La présente invention se rapporte à un procédé et à un appareil de détection de zones d'occlusion dans une séquence vidéo. On effectue une compensation de mouvement (402) sur un premier champ vectoriel de déplacement, DVF, dont on se sert pour établir un paramètre d'essai d'occlusion (404) que l'on compare à un seuil optimal (408) de façon à détecter les zones d'occlusion. On calcule ce seuil optimal en fonction du champ vectoriel DVF précédent et d'un seuil préétabli (406).

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