Patent ID: 6950465
Filing Date: 2005-09-27
Classification: H04N

Abstract:
1. A video coding apparatus comprising: coding/decoding circuitry for providing motion-compensated inter-frame prediction coding on input frames by using reference frames so that the input frames are coded into an intra-frame coded picture, a predictive coded picture or a bi-directionally predictive coded picture and decoding said coded frames to produce said reference frames; and decision circuitry for determining a magnitude of motion of said input frames relative to said reference frames and a time-varying rate of change of said magnitude of motion derived from said magnitude of motion, determining an interval between successive frames of said predictive coded picture so that the determined interval varies inversely with the determined magnitude of motion and the determined time-varying rate of change of said magnitude, and reordering said input frames following said intra-frame coded picture according to the determined interval.