Method and apparatus for producing a signature characterizing an

Television – Special applications – Manufacturing

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348907, 455 2, H04N 1700, H04N 1704

Patent

active

055722466

ABSTRACT:
Signatures are produced for characterizing an interval of a video signal representing a picture for use in broadcast segment recognition. The signature is produced based on portions of the video signal representing corresponding regions of the picture each spaced by a certain amount from a nominal edge of the picture. A shift in the video signal corresponding with a shift in the edge of the picture from a nominal edge of the picture is detected. The portions of the video signal are adjusted to compensate for the shift in the edge of the picture and a signature is produced based on the adjusted portions of the video signal.

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