Verfahren und Vorrichtung zur adaptiven Subband-Analyse und -Synthese

摘要

The method includes a coder (1) for an input video signal with a cascading branch structure for filtering and signal decimation. Filter analysis circuits (H0,H1) divide (4) the incoming signal into subbands. Local adaptive filters (3) filter each subband. Filter coefficient values are calculated from information provided at a number of analysis points. The signal is reconstructed locally at the coder level using a decoder (2) and synthesis analysis (G0,G1).