Motion compensated frame rate-up conversion based on multiple frame interpolation algorithm

Abstract

This paper presents a frame rate-up conversion algorithm utilizing two frame interpolation methods and adaptive threshold to generate the four initial frames. The first frame interpolation method interpolates the block using the block co-located in the reference frame. The second frame interpolation method interpolates the block using the half value of the motion vector in interpolated frame. In this process, the occlusion regions are occurred in four initial frames since the optimal blocks are only selected by threshold. Hence, the four initial frames are merged in order to interpolate the occlusion regions. Finally, we perform the re-search using the adjacent pixels and the available data in the occlusion regions to fill the occlusion regions. The experimental results show that the proposed algorithm provides better PSNR results and the visual quality than the conventional algorithms.