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首页> 外文会议>Conference on Algorithms and Systems for Optical Information Processing Ⅴ Jul 31-Aug 2, 2001, San Diego, USA >Computer-generated dynamic three-dimensional display using integral photography adopting Fresnel lenses
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Computer-generated dynamic three-dimensional display using integral photography adopting Fresnel lenses

机译：使用菲涅耳透镜的积分摄影进行计算机生成的动态三维显示

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摘要

Integral photography, which provides continuous viewpoints and does not require any use of special glasses, is one of the most attractive methods for autostereoscopic display. To overcome the difficulties of pickup process and the pseudoscopic problem, a CGIP(Computer-Generated Integral Photography) method is desirable. In the CGIP scheme, the elemental images of imaginary objects are generated using computer instead of using pickup process. This easiness for generating elemental images makes the system compact and cost effective. For a wide viewing angle system, the f-number (the ratio of focal length to lens diameter) of the elemental lens should be small. However, the lens aberration is the penalty of the lens array with small f-number. Unlike the system using a conventional lens array, aberration occurs little in the case of adopting a well-designed Fresnel lens array which has small f-number. Fresnel lens array contributes to widen the viewing angle in the CGIP system. In addition, to increase the image depth range, dynamic integral photography is also proposed. The gap between a lens array and a display panel changes dynamically. Synchronized elemental image array for real and virtual mode is integrated in front of or behind the lens array. Therefore, observers get enhanced feeling of depth. In this way, autostereoscopic 3-D images with wide viewing angle and increased image depth can be obtained. The method can be usefully applicable to three-dimensional imaging.
机译：整体摄影提供了连续的视点，不需要使用任何特殊的眼镜，是用于自动立体显示的最有吸引力的方法之一。为了克服拾取过程的困难和伪影问题，期望CGIP（计算机生成的整体摄影）方法。在CGIP方案中，使用计算机而不是使用拾取过程来生成虚拟对象的元素图像。这种生成基本图像的简便性使系统紧凑且具有成本效益。对于广视角系统，基本透镜的f值（焦距与透镜直径之比）应较小。然而，透镜像差是具有较小f值的透镜阵列的代价。与使用常规透镜阵列的系统不同，在采用设计良好的f值小的菲涅耳透镜阵列的情况下，像差几乎不会发生。菲涅耳透镜阵列有助于扩大CGIP系统中的视角。另外，为了增加图像深度范围，还提出了动态整体摄影。透镜阵列和显示面板之间的间隙动态变化。用于实模式和虚拟模式的同步基本图像阵列集成在镜头阵列的前面或后面。因此，观察者获得增强的深度感。以此方式，可以获得具有宽视角和增加的图像深度的自动立体3D图像。该方法可以有用地应用于三维成像。

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