METHODS AND APPARATUS FOR MOTION-BASED VIDEO TONAL STABILIZATION

METHODS AND APPARATUS FOR MOTION-BASED VIDEO TONAL STABILIZATION

One general aspect for motion-based video tonal stabilization uses a keyframe and motion estimation techniques to determine the level of spatial correspondence between input images and the keyframe. When the level of spatial correspondence is high, tonal stabilization is performed through regression...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DELON, Julie, FRIGO, Oriel, HELLIER, Pierre, SABATER, Neus
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:One general aspect for motion-based video tonal stabilization uses a keyframe and motion estimation techniques to determine the level of spatial correspondence between input images and the keyframe. When the level of spatial correspondence is high, tonal stabilization is performed through regression and power law tonal transformation to minimize the color differences between images caused by automatic camera parameters without a priori knowledge of the camera model. Tonal error accumulation is reduced by using long-term tonal propagation.