Information signal transmission system

Details Information signal transmission system Information signal transmission system

1988-11-23

1990-06-05

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358135, G06K 900

Patent

active

049320661

ABSTRACT:
A system for transmitting information signal in which a temporally correlated group of image planes are continuously formed comprises: dividing means which divides the information signal into separate image planes and further divides each image plane portion of the signal into a plurality of blocks; first transmitting means for transmitting in a first degree of information density the first of the plurality of blocks obtained from the dividing means; second transmitting means for transmitting in a second degree of information density the second of the plurality of divided blocks obtained from the dividing means; and transmission inhibiting means for inhibiting transmission of the third of the plurality of divided blocks obtained from the dividing means by dividing a present image plane portion of the information signal.

REFERENCES:
patent: 3580999 (1971-05-01), Mounts
patent: 3603725 (1971-09-01), Cutler
patent: 3749829 (1973-07-01), Burns et al.
patent: 4090221 (1978-05-01), Connor
patent: 4155097 (1979-05-01), Lux
patent: 4597010 (1986-06-01), Carr
patent: 4633326 (1986-12-01), Endoh et al.

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