Production of three dimensional motion pictures
First Claim
1. An improved process for reproducing a visual scene which may be viewed in stereopsis by the unaided human eye comprising the steps of:
- (a) recording a plurality of right and left views of a common visual scene from corresponding recording positions displaced from each other in a first direction at a distance of no more than about one inch and displaced from each other in a second direction generally perpendicular to said first direction at a distance of no more than about one inch, and(b) continuously projecting, in alternation, a sequential group of one or more of said right recorded views and a sequential group of one or more of said left recorded views onto a receiving surface for viewing by the human eye, said duration of projection of said alternating groups being such that the visual duration of each group on said surface varies from a minimum to a maximum duration which is generally correspondingly proportional to the distance of the nearest non-moving object of special regard in the scene from said recording positions, and wherein said duration is approximately equal to the visiopsychological alternation rate between right and left views of the human visual apparatus.
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Abstract
A process for recording and projecting a three dimensional visual scene onto a receiving surface from which the scene may be viewed in stereopsis by the unaided human eye. A scene is recorded from right and left view positions which are laterally separated by a distance of no more than about 1 inch, and separated in a direction generally perpendicular thereto by a distance of no more than about 1 inch, groups of one or more recorded right and recorded left views are alternately projected onto a receiving surface in sequence such that the visual duration of each group varies from a minimum to a maximum time which is generally proportional to the distance of the nearest non-moving object of special regard in the scene from the recording positions and is approximately equal to the visiopsychological supression rate of the human eyes. In addition, the central points of focus of the left and right views may be selectively set at different distances during the recording to reduce keystoning effect of the projected views during visualization.
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Citations
13 Claims
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1. An improved process for reproducing a visual scene which may be viewed in stereopsis by the unaided human eye comprising the steps of:
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(a) recording a plurality of right and left views of a common visual scene from corresponding recording positions displaced from each other in a first direction at a distance of no more than about one inch and displaced from each other in a second direction generally perpendicular to said first direction at a distance of no more than about one inch, and (b) continuously projecting, in alternation, a sequential group of one or more of said right recorded views and a sequential group of one or more of said left recorded views onto a receiving surface for viewing by the human eye, said duration of projection of said alternating groups being such that the visual duration of each group on said surface varies from a minimum to a maximum duration which is generally correspondingly proportional to the distance of the nearest non-moving object of special regard in the scene from said recording positions, and wherein said duration is approximately equal to the visiopsychological alternation rate between right and left views of the human visual apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An improved process for reproducing a visual scene which may be viewed in steropsis by the unaided human eye comprising the steps of:
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(a) continuously recording right and left views of a common visual scene from corresponding recording positions located approximately the same distance from the common visual scene and displaced from each other in a generally horizontal direction at a distance of no more than about 1 inch, and displaced from each other in a generally vertical direction at a distance or no more than about 1 inch;
while(b) maintaining the central point of focus of one of said recording position views at a point which is approximately two-thirds the distance from said one recording position view to the nearest non-moving object of special regard in the scenes, while maintaining the central point of focus of the other of said recording position views at a point which is approximately one and one-third the distance between said other recording position and said nearest non-moving object in the scene; and (c) continuously projecting said right and left recorded views, in alternation, onto a receiving surface for viewing by the human eye, said duration of projection of each of said alternating views varying from a minimum of about 1/24 second to a maximum of about 1/4 second in duration and generally correspondingly in proportion to the distance of the nearest non-moving object of special regard in the scene from said recording positions. - View Dependent Claims (13)
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Specification