Method for detecting interlaced material and field order

Details Method for detecting interlaced material and field order Method for detecting interlaced material and field order

2007-12-21

2011-11-29

Lee, Michael (Department: 2422)

Television

Synchronization

Sync separation

C348S558000

Reexamination Certificate

active

08068175

ABSTRACT:
Field order in a sequence of video frames is determined based on magnitude or relative motion of a motion vector between a bottom field of a current frame and a top field of a next frame, and magnitude or relative motion of a motion vector between a top field of the current frame and a bottom field of the next frame. Field order of two interlaced frames of a video sequence is determined by assembling two new frames from the two interlaced frames by combining a bottom field of the first frame with a top field of the second frame and by combining a top field of the first frame with a bottom field of the second frame. The field order is top field first if the number of zipper points in the first new frame is smaller than the number of zipper points in the second new frame.

REFERENCES:
patent: 6118491 (2000-09-01), Wu et al.
patent: 6430223 (2002-08-01), Lim
patent: 6512881 (2003-01-01), Kinebuchi et al.
patent: 6934335 (2005-08-01), Liu et al.

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