Fast hologram synthesis for 3D geometry models using graphics hardware

被引：36
|
作者：
Petz, C [1 ]
Magnor, M [1 ]
机构：
[1] Max Planck Inst Informat, D-66123 Saarbrucken, Germany
来源：
PRACTICAL HOLOGRAPHY XVII AND HOLOGRAPHIC MATERIALS IX | 2003年 / 5005卷
关键词：
graphics hardware; complex texture blending; synthetic holograms;
D O I：
10.1117/12.476879
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：266 / 275
页数：10
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