Patent ID: 7474357

Claim:
A method of decoding a video signal including a first video signal line and a second video signal line using a luma comb filter and a chroma comb filter, said method comprising: obtaining a first chroma data for said first video signal line using said chroma comb filter; obtaining a second chroma data for said second video signal line using said chroma comb filter, wherein said first video signal line is adjacent to said second video signal line; obtaining a first luma data for said first video signal line using said luma comb filter; obtaining a second luma data for said second video signal line using said luma comb filter; using said chroma comb filter and said luma comb filter in a complimentary mode if there is correlation between said first chroma data and said second chroma data and there is no correlation between said first luma data and said second luma data; and using said chroma comb filter and said luma comb filter in a non-complimentary mode if there is correlation between said first chroma data and said second chroma data and there is correlation between said first luma data and said second luma data.