Detector for detecting vector indicating motion of image

Details Detector for detecting vector indicating motion of image Detector for detecting vector indicating motion of image

1990-03-01

1991-09-10

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, H04N 718, H04N 712

Patent

active

050478508

ABSTRACT:
A detector for detecting a motion vector indicating the motion of an image comprising: device for deriving corrlative values for an overall or partial screen area for the two-field image signal of a successively inputted TV signal, within an area of motion vectors to be predicted for the current field, based on the motion vectors obtained before the current field; and device for deriving, as a motion vector, an optimum value from among the correlative values, whereby the correlative values in the area of motion vectors to be predicted for the current field are derived on the basis of the motion vectors obtained before the current field, and then a motion vector is detected from among those correlative values. With the above structure, it is made possible to detect a motion vector in a larger area with a smaller amount of operation, circuit and processing time, as compared with a prior art detector.

REFERENCES:
patent: 4651206 (1987-03-01), Ohki
patent: 4689672 (1987-08-01), Furukawa
patent: 4924310 (1990-05-01), Von Brandt
patent: 4947248 (1990-08-01), Hienerwadel
A New Technique to Improve Video Stability by Digital Processing, Toshimari Matsuzuru, 11/88 SMPTE Journal.

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