Interfield image motion detector for video signals

Details Interfield image motion detector for video signals Interfield image motion detector for video signals

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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Detlef Teichner, "Quality Improvement by Adaptive Inter/Intraframe Processing in PAL TV Receivers", presented ICCE, 6/7/85, Chicago.
G. Bostelmann, "A Codel for Video Telephone Signals with a Motion Detector Optimized by Subjective Tests", Frequenz 33, (1979), pp. 2-8.

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