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Optics and image processing techniques of one-step holographic stereogram

A method for producing one-step holographic stereogram is presented. Combining computer-based digital image processing technology, two kinds of stereogram, made of slits or dots respectively, are discussed. The stereogram produced can offer a combination of large viewing zone and minimal image distortion, depending on alterable parameters in the image processing program. Hologram-recording experiments are carried out, and then process and results are given. Since the techniques described are applicable to mass produce large scale stereogram automatically, primary designing of stereogram-printing equipment, both 'slits' and 'dots' systems are studied.