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US 4,537,481 AGranted
Process and apparatus for creating traveling mattes
OwnerCraig D. Wittyinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for creating traveling mattes in which a first image is photographed and then sensed. The first image is then electronically processed followed by the steps of photographing on the same film a successive image and simultaneously transmitting to a light valve an electronic signal to produce a high-contrast negative image corresponding to the first image so that the successive image is combined with the first image.
Claims9
A system for creating traveling mattes for special-effects cinematography comprising:
- (a) photographic recording means for recording an image:
- (b) electronic camera means:
- (c) means for transmitting said image to said electronic camera means so that the photographic recording means and the electronic camera means receive the same image;
- (d) light valve means for selectively modulating the light received by said photographic recording means;
- (e) means for generating an image on said light valve means whereby the light received by said photographic recording means is selectively modulated;
- and,
- (f) control means for controlling said means for generating an image responsive to said camera means
- whereby the image received by said electronic camera means can be transmitted to said light valve means to modulate the light received by said photographic recording means.
5 more elements
A method for creating combined images in cinematography comprising the steps of:
- (a) photographing a first image with photographic recording means and sensing said first image by electronic camera means;
- (b) electronically processing said first image from said electronic camera means and storing electronic signals or real images corresponding to said first image;
- (c) photographing on the same film a successive image with said photographic recording means;
- (d) simultaneously transmitting to light valve means said electronic signal to produce a high-contrast negative image corresponding to said first image whereby said successive image is combined with said first image.
1 more element
Dependencies are inferred from the claim text.