Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1985-11-01
1987-04-28
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358160, 358105, 358 36, 358 37, H04N 718, H04N 514, H04N 5213
Patent
active
046618538
ABSTRACT:
A motion detector for determining image motion in a video signal develops an array of signals representing the difference between pixels from adjacent frames. The array of signals are grouped into subarrays, each of which include the signal corresponding to the pixel under examination for motion. Each of the subarrays are independently examined to determine if the magnitude of all of the pixel differences represented in a particular subarray exceed a predetermined threshold and/or the pixel differences have like polarity. If these conditions are met in any one of the subarrays, a motion signal is produced.
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Harwood Leopold A.
Roeder Barbara J.
Weckenbrock Hermann J.
Groody James J.
Herrmann E. P.
Rasmussen P. J.
RCA Corporation
Smith Cynthia
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