APPARATUS AND METHOD FOR FILTERING DIGITAL VIDEO SIGNAL

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and a method for filtering a digital video signal. SOLUTION: An apparatus for filtering a digital video signal comprises a noise reduction filter 10 which selectively outputs one of results obtained by temporally and spatially filtering pixel values frames constituting an image in response to magnitudes of results of temporal and spatial filtering, and a sharpness enhancement filter 12 which highlights and outputs a high pass component of the temporal or spatial filtering value. The noise reduction filter 10A is comprised of a temporal filtering section 20, a spatial filtering section 22 and a filter selecting section 24. COPYRIGHT: (C)2006,JPO&NCIPI