Patent ID: 8351512
Filing Date: 2013-01-08
Classification: H04N

Abstract:
1. Method of estimating motion at a predefined time position in a video sequence comprising at least first and second video frames, comprising the steps of: a) estimating, for at least one pixel of a frame located at the predefined time position, a first motion vector component in a first spatial direction based on the first video frame and the second video frame, b) compensating at least a part of the second video frame based on at least a part of the estimated first motion vector component, c) estimating, for the at least one pixel of a frame located at the predefined time position, a second motion vector component in a second spatial direction based on the first video frame and the compensated second video frame to use the estimation in the second direction to compensate at least the first or the second video frame in the second direction before estimating the motion in the first direction to improve the estimations in both directions with said recursive estimation; and d) checking if a first stop criterion is reached at the end of the step c).