论文标题

提高单通行实时全息投影的性能

Improving performance of single-pass real-time holographic projection

论文作者

Christopher, Peter J., Mouthaan, Ralf, Bheemireddy, Vamsee, Wilkinson, Timothy D.

论文摘要

这项工作描述了一种在二元相设备上的时期全息投影的新方法。与其他时间多形的算法不同,每个帧都是独立修改的目标图像的逆变换,单转换时间 - 磁性(STTM)全息图生成会产生来自单个逆变换的多个子框架。然后,衍射场上均匀的间距复合旋转允许使用N子帧在二进制设备上含有2^n调制水平的设备进行仿真。与一步阶段检索(OSPR)相比,STTM的均方根误差高达n = 5,比等效数量的OSPR子框架数量较低,其生成时间为同等的OSPR帧的1/N。提出了STTM方法的数学合理性,并引入了混合方法,允许与OSPR结合使用STTM,以结合性能优势。

This work describes a novel approach to time-multiplexed holographic projection on binary phase devices. Unlike other time-multiplexed algorithms where each frame is the inverse transform of independently modified target images, Single-Transform Time-Multiplexed (STTM) hologram generation produces multiple sub-frames from a single inverse transform. Uniformly spacing complex rotations on the diffraction field then allows the emulation of devices containing 2^N modulation levels on binary devices by using N sub-frames. In comparison to One-Step Phase Retrieval (OSPR), STTM produces lower mean squared error for up to N = 5 than the equivalent number of OSPR sub-frames with a generation time of 1/N of the equivalent OSPR frame. A mathematical justification of the STTM approach is presented and a hybrid approach is introduced allowing STTM to be used in conjunction with OSPR in order to combine performance benefits.

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