Patent ID: 8411751
Filing Date: 2013-04-02
Classification: H04N

Abstract:
1. A method comprising: projecting motion vectors describing a transformation from a previous video frame to a future video frame onto a plane between the previous video frame and the future video frame, the previous video frame being in a temporal past compared to the future video frame; detecting potential artifacts at the plane based on an intersection of a cover region and an uncover region on the plane, the cover region indicating that corresponding pixels on a region of the plane are solely located in the previous video frame, the uncover region indicating that corresponding pixels on the region of the plane are solely located in the future video frame, and the intersection of the cover region and the uncover region indicating a plurality of conflicting motion vectors at a region of intersection on the plane; analyzing a dissimilarity between a trial video frame and both the previous video frame and the future video frame, the trial video frame being generated between the previous video frame and the future video frame based on a frame rate conversion ratio derived from a source frame rate and a desired frame rate; and estimating reliability of the projected motion vectors based on the potential artifact detection and the dissimilarity analysis through obtaining a figure of demerit for each N×N block of pixels at the plane based on a higher of a result of the potential artifact detection and a result of the dissimilarity analysis to enable concealment of the corresponding N×N block of pixels, N being a positive even number.