Apparatus for judging a hand movement of an image

Details Apparatus for judging a hand movement of an image Apparatus for judging a hand movement of an image

1992-10-09

1995-09-26

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348208, H04N 732

Patent

active

054538009

ABSTRACT:
In an apparatus for judging a hand movement of an image, pixels where absolute values of differences between image data of respective pixels of blocks of a current frame and image data of representative point pixels of blocks of an earlier frame read out from a representative point memory satisfy a predetermined condition are judged by a condition judgment circuit to form a frequency distribution table corresponding to the judged result by a frequency distribution table formation circuit to calculate, on the basis of the frequency distribution table, the number of coordinates having a frequency value greater than a predetermined value in the vicinity of a coordinate designated by a motion vector of an image to judge the motion vector to result from a hand movement when the calculated value is less than a predetermined value.

REFERENCES:
patent: 5099323 (1992-03-01), Morimura et al.
patent: 5157732 (1992-10-01), Ishii et al.
patent: 5184216 (1993-02-01), Kobayashi
patent: 5193003 (1993-03-01), Kondo
patent: 5204741 (1993-04-01), Sakaguchi
patent: 5237405 (1993-08-01), Egusa et al.

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