Improved interpolation of video compression frames

摘要

A method for improving the image quality of one or more predicted frames in a video image compression system, where each frame comprises a plurality of pixels. A sequence of predicted and bi-directionally predicted frames are provided each comprising pixel values arranged in picture areas, wherein at least one of the picture areas in at least one of the predicted frames or the bi-directionally predicted frames is predicted from picture areas in one or more reference frames using direct mode prediction. A predicted motion vector is determined with a frame-distance method. The predicted motion vector is linearly proportional to the motion vector and the distance between the predicted frame of the predicted picture area and at least one reference frames.