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Fast Hologram Synthesis for 3D Geometry Models using Graphics Hardware

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons45188

Petz,  Christoph
Graphics - Optics - Vision, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons44965

Magnor,  Marcus
Graphics - Optics - Vision, MPI for Informatics, Max Planck Society;

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Zitation

Petz, C., & Magnor, M. (2003). Fast Hologram Synthesis for 3D Geometry Models using Graphics Hardware. In Practical Holography XVII and Holographic Materials IX (pp. 266-275). Bellingham, USA: SPIE.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-2CFB-B
Zusammenfassung
The holographic visualization of three-dimensional object geometry still represents a major challenge in computational holography research. Besides the development of suitable holographic display devices, the fast calculation of the hologram's interference pattern for complex-shaped three-dimensional objects is an important pre-requisite of any interactive holographic display system. We present a fast method for rendering full-parallax holograms using a standard PC with a consumer-market graphics card. To calculate the hologram of a 3D object, scaled and translated versions of the interference pattern of simple primitives, e.g. point sources, are superimposed. The hologram is built up completely on-board the graphics card. To avoid numerical inaccuracies due to limited frame-buffer resolution, we use a hierarchical approach. Using an NVidia Geforce4 graphics card, the proposed algorithm takes 1.0 second to calculate the 512x512-pixel hologram of 1024 primitives.