AUTOMATIC NOISE REDUCTION IMPROVEMENT IN VIDEO SEQUENCES

摘要

To a video signal comprising groups (GOP) of intra (I-frame) and intercoded frames (P-frame, B-frame) a noise reduction is applied. The strength of the noise reduction strength has a modulation in time with a period substantially equal to the period (T_l) between intra coded frames. The noise reduction strength has a maximum substantially co inciding with the position of intra coded frames.