Patent ID: 7349029

Claim:
A method of de-interlacing an interlaced video signal comprising a plurality of even-parity and odd-parity video fields, the method comprising: (a) generating a per-field motion pattern set for a subject video field, the per-field motion pattern set comprising a same-parity and an opposite-parity motion pattern pair; (b) providing a plurality of progressive mode pattern pairs, each comprising a same-parity and an opposite-parity progressive mode pattern, wherein each progressive mode pattern pair is unique and characteristic of one of a plurality of progressive frame-to-interlaced field conversion techniques; (c) comparing the same-parity and opposite-parity motion pattern pair for the subject video field with each progressive mode pattern pair to determine whether the subject video field is derived from a progressive source and to identify the progressive frame-to-interlaced field conversion technique used; and (d) based on the comparison, utilizing a field-merging de-interlacing technique or a per-pixel de-interlacing technique to de-interlace the subject field to produce a progressive video signal.