Scene-cut processing in motion-compensated temporal filtering

Motion-compensated temporal filtering (MCTF) is a powerful technique entering scalable video coding schemes. However, its performance decreases significantly if the video signal correlation is poor and, in particular, when scene-cuts occur. In this paper we propose an improved structure for MCTF by detecting and processing the scene-cuts that may appear in video sequences. It significantly reduces the ghosting artefacts in the temporal approximation subband frames, providing a higher quality temporal scalability, and dramatically improves the global coding efficiency when such abrupt transitions happen.