Method and System for Efficiently Increasing the Temporal Depth of a 3D Comb Filter

摘要

Processing signals in a video system may include detecting motion in at least one of a plurality of video frames, storing the results of the detecting to a buffer and comb filtering at least one future frame using the results stored in the buffer. Detecting the difference may include computing the difference between at least two of the plurality of frames on a pixel by pixel basis and comparing the difference to a threshold. The width and height of the buffer may be the same as the width and height of a video frame and a result may be stored in a location in the buffer corresponding to the location in the video frame where motion may have been detected. The buffer may hold the data representing motion from a plurality of frames. The processing may further include extracting chroma and luma information from a composite video signal by using a frame comb filter.