Video signal processing

Details Video signal processing Video signal processing

1997-09-25

2000-06-13

Britton, Howard

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348699, 348700, H04N 514, H04N 964

Patent

active

06075818&

ABSTRACT:
Cuts in a video signal are detected by first measuring a correlation parameter between successive images; this can be the sum of the maximum peak heights for each of 16 to 100 or more blocks in a block-based phase correlation procedure. An averaged value of this correlation parameter is maintained and the current measurement of the correlation parameter is compared with the averaged value. The presence of a cut is inferred where the current measurement drops beneath, say, 50% of the average value.

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