Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jani Lainema0
Marta Karczewicz0
Date of Patent
April 3, 2007
0Patent Application Number
104408410
Date Filed
May 19, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A motion estimation method and system for a video coder are disclosed. The system comprises an input for a video image to be coded. It also comprises a hierarchical series of motion estimators of varying complexity, for estimating a motion vector field between the received image and a reference image. The subsequent motion estimator in the series is selected by a control means if a prediction error associated with the motion vector field estimated by the currently selected motion estimator exceeds a predetermined threshold. When available, inherited and predicted motion information is used to improve prediction quality.
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