Digital video effects system employing a chroma-key tracking tec

Details Digital video effects system employing a chroma-key tracking tec Digital video effects system employing a chroma-key tracking tec

1978-07-07

1980-04-29

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, H04N 522, H04N 9535

Patent

active

042008905

ABSTRACT:
A chroma-key tracking system for electronically compressing a television picture to predetermined dimensions and for moving the compressed picture to a specified area on the television screen where the compressed picture is inserted into a second picture present on the screen. The chroma-key tracking system advantageously operates in the presence of electrical noise associated with the chroma-key tracking signal.

REFERENCES:
patent: 3437873 (1969-04-01), Eggert
patent: 3654386 (1972-04-01), Baum
patent: 3787619 (1974-01-01), Wolff
patent: 4028727 (1977-06-01), Skrydstrup
patent: 4063280 (1977-12-01), Hattori et al.
patent: 4103830 (1978-12-01), Derickson
The Digital Video Effects (DVE) System; SMPTE Journal, Apr. 1978, vol. 87, pp. 214-218, Article by M. D. Patten.

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