Pinnacle Patent Law Group
Method and apparatus for de-interlacing interlaced video fields originating from a progressive video source
A method for de-interlacing an interlaced video signal includes generating a per-field motion pattern set for a subject video field, where the motion pattern set comprises a same-parity motion pattern and an opposite-parity motion pattern pair, providing a plurality of progressive mode pattern pairs, where each progressive mode pattern pair is unique and characteristic of one of a plurality of progressive frame-to-interlaced field conversion techniques, and 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. Based on the comparison, a field-merging de-interlacing technique or a per-pixel de-interlacing technique is utilized to de-interlace the subject field to produce a progressive video signal. In addition, based on the comparison, a display frame rate of the progressive video signal and the number of times to display a de-interlaced frame are also controlled.
Kolorific, Inc.
H H
H04N H04N
inventional inventional
Chih-Hsien
Chou