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Simulation of Fresnel Zone Plate Imaging Performance with Number of Zones

机译:用区域数模拟菲涅耳区板成像性能

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摘要

In recent years, integral imaging, a promising three-dimensional imaging technology, has attracted more and more attention for its broad applications in robotics, computational vision, and medical diagnostics. In the visible spectrum, an integral imaging system can be easily implemented by inserting a micro-lens array between a image formation optic and a pixelated detector. By using a micro-Fresnel Zone Plate (FZP) array instead of the refractive lens array, the integral imaging system can be applied in X-ray. Due to micro-scale dimensions of FZP in the array and current manufacturing techniques, the number of zones of FZP is limited. This may have an important impact on the FZP imaging performance. The paper introduces a simulation method based on the scalar diffraction theory. With the aid of this method, the effect of the number of zones on the FZP imaging performance is numerically investigated, especially the case of very small number of zones. Results of several simulation of FZP imaging are presented and show the image can be formed by a FZP with a number of zones as low as 5. The paper aims at offering a numerical approach in order to facilitate the design of FZP for integral imaging.
机译:近年来,积分成像是一个有前途的三维成像技术,越来越多地关注其在机器人,计算视觉和医疗诊断中的广泛应用。在可见光谱中,通过在图像形成光学和像素检测器之间插入微透镜阵列,可以容易地实现整体成像系统。通过使用微菲涅耳区板(FZP)阵列代替折射透镜阵列,可以在X射线中应用整体成像系统。由于阵列和电流制造技术中FZP的微量尺度尺寸,FZP区的数量有限。这可能对FZP成像性能产生重要影响。本文介绍了一种基于标量衍射理论的仿真方法。借助于这种方法,在数值上研究了区间数量对FZP成像性能的影响,特别是区域数量非常少的情况。提出了几种FZP成像模拟的结果,并显示了图像可以由FZP形成,具有多个区域的低至5.纸张旨在提供数值方法,以便于设计FZP的整体成像。

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