Progressive scan television system employing a comb filter

Details Progressive scan television system employing a comb filter Progressive scan television system employing a comb filter

1985-10-31

1986-10-07

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 12, H04N 1120

Patent

active

046162518

ABSTRACT:
A flat-field television image having reduced visibility of horizontal scan lines is generated by receiving first and second fields of interlaced video and progressively generating a scanned image within a time for one incoming field. The progressive scanned image is formed from "real" and interpolated lines of luminance. In this arrangement the interpolated line is formed by weighting samples from time-successive lines. To improve the vertical detail of a progressively scanned image vertical detail information which may be obtained from the chrominance channel is combined with both "real" and interpolated lines, or one to the exclusion of the other, to enhance the image displayed.

REFERENCES:
patent: 4096516 (1978-06-01), Pritchard
patent: 4245237 (1981-04-01), Lagoni
patent: 4400719 (1983-08-01), Powers
patent: 4415931 (1983-11-01), Dischert
patent: 4429327 (1984-01-01), Oakley et al.
patent: 4521802 (1985-06-01), Ikeda
Paper "A Motion Adaptive High-Definition Converter for NTSC Color TV Signals", Achiha et al., May 1983, 13th International Television Symposium in Montreux, Achiha et al.
"Development of New TV Receiver Digital Television Adaptable to New Media", Sony Corp. Aug. 15, 1983.

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