Field interpolation method determination device

Details Field interpolation method determination device Field interpolation method determination device

2003-03-28

2008-11-18

Lee, M. (Department: 2622)

Television

Format conversion

Line doublers type

C348S452000, C348S459000, C348S701000, C348S911000

Reexamination Certificate

active

07453518

ABSTRACT:
Correlation of videos between fields is determined between a difference between an input interlaced signal and a signal that is delayed by one field with respect to the input interlaced signal. Correlation among N-1 sequential fields is compared with a predetermined pattern to determine whether the input interlaced signal is unquestionably a telecine-converted signal, whether it is unquestionably not a telecine-converted signal, or whether it cannot be said to be unquestionably a telecine-converted signal. If a determination of being unquestionably a telecine-converted signal is continued for a predetermined number or more of fields, an instruction signal, which instructs to perform inter-field interpolation on the input interlaced signal, is outputted.

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