Abstract: This paper presents a frame rate conversion algorithm based on motion vector projection. In the motion estimation stage, the continuous elimination algorithm SEA is adopted, which is combined with the full search algorithm to optimize the calculation process of block matching criteria, so as to ensure the image quality and reduce the computational complexity at the same time. In the process of motion vector field projection, a new selection criterion of motion vector is defined, and the position information of the block is added on the basis of the matching criterion. Compared with the traditional standard, this criterion can better represent the true motion of the interpolated block, with higher accuracy. In the phase of motion compensation, the adaptive weighted compensation interpolation algorithm is used to consider the motion information of all overlapped projection blocks. The cavitation phenomenon is filled by the median filtering algorithm of motion vector. Experimental results show that the algorithm can reduce the loss of motion information and the interpolation effect is more accurate.

Key words:  SEA； motion vector projection, frame rate conversion, motion estimation, pixel weighting, median filtering