Patent ID: 8363734

Claim:
A method of filtering, using a multi-directional comb filter, pixel data from a sequence of fields of pixel data, wherein the fields of pixel data comprise a previous field, a current field and a next field, and wherein each of said fields includes a previous line, a current line, a next line, the method comprising: determining a temporal chrominance velocity (K — 3dcomb) relative to a pixel position of the current field based on a first video signal value (cvbs_p) for the pixel position on the current field; a second video signal value (cvbs_c) for the pixel position on the previous field; and a third video signal value (cvbs_n) for the pixel position on the next field, wherein K — 3dcomb is determined as one or more of C — 3dcomb — n /(C — 3dcomb — p +C — 3dcomb — n ), and (1) C — 3dcomb_ p /(C — 3dcomb_ p +C — 3dcomb_ n ), wherein (2) C — 3 d comb p =(cvbs — c −cvbs — p ), and C — 3 d comb n =(cvbs — c −cvbs — n ); and determining a temporal luminance based on the first video signal value; the second video signal value; the third video signal value; and the temporal chrominance velocity.