Video monitoring system for a movie film camera

Details Video monitoring system for a movie film camera Video monitoring system for a movie film camera

1997-06-12

1999-03-16

Adams, Russell

Optics: motion pictures

Covertible

352171, 352206, G03B 1918

Patent

active

058836969

ABSTRACT:
A video monitoring system for a movie film camera usable with either spherical or anamorphic lenses wherein conventional, unmodified video monitors and recorders may be used. A video camera is positioned in the film camera to receive an image directly from the camera lens without interposing either a ground glass for imaging or an optical deanamorphosing lens. The anamorphic image, which is horizontally squeezed (such as by a factor of 2), that is received by the video camera then is electronically processed to deanamorphose the image by producing an analog video signal to a video monitor that displays the properly proportioned image in the middle one-half of the monitor screen and produces black areas or strips across the top one quarter and bottom one quarter of the screen. The horizontal lines of the video picture are electronically interpolated for enhancing the picture.

REFERENCES:
patent: 2963937 (1960-12-01), Raitiere
patent: 3236581 (1966-02-01), Mitchell
patent: 4963906 (1990-10-01), Goodman

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