Systems and methods for detecting a change in a sequence of...

Television – Image signal processing circuitry specific to television – Motion dependent key signal generation or scene change...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C348S441000, C348S448000, C348S452000

Reexamination Certificate

active

11167682

ABSTRACT:
A method of detecting a change in a sequence of video data fields generated from a progressive scan source includes receiving first and second interlaced fields of a corresponding progressive scan frame from a sequence of interlaced fields generated from progressive scan source. Pixel values corresponding to pixel positions of pixel lines of a first parity of the first field are weaved with pixel values corresponding to pixel positions of pixel lines of a second parity of the second field. For each pixel value corresponding to each pixel position of each pixel line of the second field after weaving, a check is performed for the corresponding pixel position for feathering due to motion. A number of detected pixel positions with feathering due to motion is counted and compared against a threshold. A determination is made that the sequence of fields generated from the progressive scan source has not changed when the number of counted pixel positions due to motion is below the threshold and a determining that the sequence of fields generated from the progressive scan source has changed when the number of counted pixel positions due to motion is above the threshold.

REFERENCES:
patent: 5532751 (1996-07-01), Lui
patent: 6459455 (2002-10-01), Jiang et al.
patent: 7206028 (2007-04-01), Yeh et al.
patent: 7286185 (2007-10-01), Wong et al.
patent: 2006/0077305 (2006-04-01), Wyman

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Systems and methods for detecting a change in a sequence of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Systems and methods for detecting a change in a sequence of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for detecting a change in a sequence of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3931770

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.