ESTEREOGRAMAS DE OBJETOS EN MOVIMIENTO MEDIANTE "SPECKLE MODULADO"

N. BOLOGNINI; R. DUCHOWICZ; L. SCAFFARDI ; M. TRIVI

Anales AFA

Asociación Física Argentina

Lugar: Tandil; Año: 1989 p. 124 - 126

0327-358X

3—D data display can be classified into holographic and non-holographic.(1]. Normally, the amount of information stored in a hologram i verylarge. In this way, if only deph perception is required, the stereoscopictechniques provide an adequate 3-D display. Among the non-holographicmethod, we have developed an optical method for storing on a singlerecording plate different perspectives of a 3-D scene [2). In this paperwe propose such stereoscopic method for displays of moving objects.In this case, for recording stereograms we use a speckle carrier forproducing the required directivity by diffraction. This speckle carrier isproduced using coherent light and with an image system whose pupil maskconsists of a double-fan aperture (i.e. two circular sectors opposed bytheir apices). Each different image, corresponding to a different point ofview of 3-D object, is registered with a different orientation of thedouble-fan pupil.