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Image interpolation is a well-studied signal processing application that continues to receive substantial attention from the research community. It has been recognized that taking into account the presence of edges in an image can significantly improve the resulting interpolated image. Many techniques modify the interpolation method in the presence of edges to avoid common artifacts such as blurring,...
In this paper, a novel, low-complexity motion vector processing algorithm at the decoder is proposed for motion-compensated frame interpolation or frame rate up-conversion. We address the problems of having broken edges and deformed structures in an interpolated frame by hierarchically refining motion vectors on different block sizes. Our method explicitly considers the reliability of each received...
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