带限双步菲涅耳衍射及其在计算全息图中的应用。

Band-limited double-step Fresnel diffraction and its application to computer-generated holograms.

作者信息

Okada Naohisa, Shimobaba Tomoyoshi, Ichihashi Yasuyuki, Oi Ryutaro, Yamamoto Kenji, Oikawa Minoru, Kakue Takashi, Masuda Nobuyuki, Ito Tomoyoshi

机构信息

Graduate School of Engineering,Chiba University, Chiba 263-8522, Japan.

出版信息

Opt Express. 2013 Apr 8;21(7):9192-7. doi: 10.1364/OE.21.009192.

DOI:10.1364/OE.21.009192

PMID:23572007

Abstract

Double-step Fresnel diffraction (DSF) is an efficient diffraction calculation in terms of the amount of usage memory and calculation time. This paper describes band-limited DSF, which will be useful for large computer-generated holograms (CGHs) and gigapixel digital holography, mitigating the aliasing noise of the DSF. As the application, we demonstrate a CGH generation with nearly 8K × 4K pixels from texture and depth maps of a three-dimensional scene captured by a depth camera.

摘要

双步菲涅耳衍射（DSF）在内存使用量和计算时间方面是一种高效的衍射计算方法。本文介绍了带限双步菲涅耳衍射，它对于大型计算机生成全息图（CGH）和千兆像素数字全息术很有用，可以减轻双步菲涅耳衍射的混叠噪声。作为应用，我们展示了一种基于深度相机捕获的三维场景的纹理和深度图生成近8K×4K像素的计算机生成全息图的方法。