Widescreen television signal processor system with interpolator

Details Widescreen television signal processor system with interpolator Widescreen television signal processor system with interpolator

1988-09-07

1990-10-30

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

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358 37, 358140, H04N 964

Patent

active

049672630

ABSTRACT:
An NTSC compatible widescreen EDTV system encodes a television signal via a process including intraframe averaging of mutually exclusive successive paired groups of image pixels above a given frequency. At a decoder, intraframe averaged luminance image information is interpolated on a line-by-line basis to help reduce unwanted jagged diagonal image artifacts. Vertical peaking is associated with intraframe averaging at the encoder.

REFERENCES:
patent: 4287528 (1981-09-01), Levy
patent: 4583113 (1986-04-01), Pritchard
patent: 4605950 (1986-08-01), Goldberg et al.
patent: 4698673 (1987-10-01), Johnson
patent: 4814873 (1989-03-01), Maekang
M. A. Isnardi, et al., "Encoding for Compatibility and Recoverability in the ACTV System", IEEE Transactions on Broadcasting, vol. BC-33, No. 4, Dec. 1987, pp. 116-123.
M. A. Isnardi, et al., "Decoding Issues in the ACTV System", IEEE Transactions on Consumer Electronics, vol. 34, No. 1, Feb. 1988, pp. 111-120.

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