Proceedings PaperShear-lens photography for holographic stereograms
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There are several methods for recording two-dimensional perspective views for a holographic stereogram. Most of these use photographic transparencies recorded with a conventional camera. The subject often is a real object or a graphic image produced by a computer. In both cases the more accurately the recording geometry matches the holographic projection geometry the more realistic the stereogram image will appear. This paper compares several recording techniques. Special emphasis is given to the 'shear lens' technique which uses a moveable camera lens designed to maximize resolution and angle of view. An example is described in detail.