Two dimensional filters for improving the resolution of up-sampled video files

Abstract

This paper introduces a new algorithm for improving the resolution of interpolated video. The aim is to achieve a high resolution video from a low resolution one. The new algorithm uses the concept of interpolation and filtering in order to get a higher resolution video. The filter is designed by reducing the size of the video and then enlarging it by using interpolation. A filter is optimized to minimize the mean square error between the original frame and the interpolated frame. Each frame will end up with a different filter. The video is then enlarged and the designed filters are used to sharpen the interpolated frames. The algorithm was successfully tested on different videos and the results were assessed subjectively and objectively by using the PSNR.