Abstract
Synthetic holograms produce 3-D images of digital data that represent synthetic or computational scenes. Computation of their interference patterns to simulate the corresponding natural holograms usually leads to tasks of enormous sin. However, the information content of such an image can be drastically reduced without impairing its accurate 3-D perception with corresponding reductions of the computational load, transmission bandwidth, and requirements on the display technology. In particular, reduction of resolution to that of the pixelated data, elimination of vertical parallax. and sampling of the horizontal parallax are found to reduce the computational load by up to 6 × 104 times and simplify the display technologies required. For example, a scanned acoustooptical modulator can then provide the display of a 50- × 50-mm image. Hard copy output of similar 3-D Images is better produced by merging computer graphic methods with holographic stereo-gram technology, building on the concepts proposed by Pole in 1967.1
© 1989 Optical Society of America
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