is associated to the corresponding pixel in the interpolated frame if and point at a space location in the reference frame the pixel color of the interpolated frame if is reconstructed by averaging the information of the pixels close to the space location pointed from the motion vector the interpolated frames if are then mixed to fully rendered frames kf through a multiplexing device 239 and displayed on a remote screen 240 if a frame rate upconversion process is performed locally between the graphic engine and its display and not remotely the same motion compensation procedure described above applies in the following a description is provided of the methods used by the 3d graphic system shown in fig3 and 4 to carry out motion vector synthesis and picture motion compensation these methods extract motion vectors from the geometry stage 111 and use them to compensate temporally the un rendered frames with respect to those frames that were already rendered i e the fully rendered frames kf like the temporal averaging technique this technique uses one or more frames already rendered by the normal 3d pipeline i e the future and past frames with respect to the frame being interpolated to perform such an operation the motion compensation stage 237 is introduced in the 3d pipeline.