Method and system for video quality assessment

G - Physics – 06 – T

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G06T 7/00 (2006.01) H04N 17/00 (2006.01)

Patent

CA 2529451

A method and system for automated video quality assessment which reduces the adverse effects of sub-field/frame misalignments between the reference and test sequences. More particularly, the invention provides for misalignments down to a sub-field/frame level to be handled by individually matching sub- field/frame elements of a test video field/frame with sub-field/frame elements from a reference video field/frame. The use of a matching element size that is significantly smaller than the video field/frame size enables transient sub- field/frame misalignments to be effectively tracked.

Procédé et système d'évaluation automatisée de la qualité vidéo, qui réduisent les effets néfastes de mésalignements de sous-zone / image entre les séquences de référence et de test. Plus particulièrement, la présente invention concerne le traitement de mésalignements jusqu'à un niveau de sous-zone / image par mise en correspondance individuelle des éléments de sous-zone / image d'une zone / image vidéo testée avec des éléments de sous-zone / image provenant d'une zone / image vidéo de référence. L'utilisation d'une taille d'éléments de correspondance significativement plus petite que la taille de la zone / image vidéo permet la détection efficace de mésalignements de sous-zone / image transitoires.

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