Method of correcting image errors

Details Method of correcting image errors Method of correcting image errors

1988-07-12

1990-04-03

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 25, 358 37, 382 57, H04N 521

Patent

active

049147455

ABSTRACT:
A method for correcting image errors in the transmission of DPCM coded image signals provides that an error trail recognition is carried out at the receiving end and that the adulterated image signal values are replaced by already received and intermediately stored image signal values of the preceding television image or television half image.

REFERENCES:
patent: 4403250 (1983-09-01), Kellar
patent: 4626891 (1986-12-01), Achiha
patent: 4651211 (1987-03-01), Weckenbrock
"Techniques for Reducing the Visibility of Transmission Errors in Digitally Encoded Video Signals", Connor, IEEE Trans. on Comm., vol. COM--21, No. 6, Jun. 1973, pp. 695-706.
"Digitale Magnetbandaufzeichnung von Video-und Audiosignalen auf einem Videocaassetten-recorder", Westerkamp et al., 10 Jahrestagung der FKTG, 9/1982, pp. 526-548.

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