VIDEO DECODING METHODS, VIDEO DECODING EQUIPMENT, AND COMPUTER-READABLE INVARIANT MEDIA

Abstract

Image prediction refers to methods for predicting images, image prediction devices, and indefinite storage media.The motion prediction method includes the following steps: determining the motion vectors of w control points in the current image block; obtaining, through computation, the motion vectors of p pixel units of the current image block using a motion model and the motion vectors of w control points, where the accuracy of the determined motion vectors of w control points is 1 / n of the pixel accuracy, the accuracy of the motion vector obtained through computation and of each of p pixel units is 1 / n of the pixel accuracy, p pixel units are some or all of the pixel units of the current image block, and N is greater than n; and perform interpolation filtering on the pixel of the corresponding reference pixel unit, in the reference image, for each of the p pixel units using an interpolation filter with phase Q, to obtain the predicted pixel value of each of the p pixel units, where Q is greater than n.The technical solutions proposed in the invention's proposals help reduce the computational complexity throughout the light prediction process.