Intra-field recursive interpolator

Details Intra-field recursive interpolator Intra-field recursive interpolator

1986-10-20

1988-06-21

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358140, 358136, 358160, 340720, H04N 712, H04N 514

Patent

active

047528265

ABSTRACT:
An intra-field recursive interpolator reads stored output video from one field store while writing output video into a second field store. The read stored output video is spatially corrected by vertical interpolation prior to being multiplied by a decay constant and being combined with an input video which has been multiplied by the inverse of the decay constant to produce the output video. The resulting output video is a combination of the current input field of video and each preceding field of the output video.

REFERENCES:
patent: 4058836 (1977-11-01), Drewery et al.
patent: 4494140 (1985-01-01), Michael
patent: 4639784 (1987-01-01), Fling
patent: 4646138 (1987-02-01), Willis
patent: 4675733 (1987-06-01), Tanimoto

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