A sampled phase-only hologram (SPOH) is the phase component of the hologram of an object image with pixels being sampled with a periodic grid-cross pattern. The reconstructed image of a SPOH is a sparse image with abundant empty voids and degradation in sharpness and contrast. In this paper we proposed a method based on a new sampling scheme, together with stochastic binary search (SBS), to obtain an optimal sampling lattice that can be applied to generate phase-only holograms with enhanced reconstructed image. Experimental results show that with our proposed method, the fidelity and quality of the reconstructed image are increased.

中文翻译：

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最佳采样仅相位全息图 (OSPOH)

采样的仅相位全息图 (SPOH) 是物体图像全息图的相位分量，其中像素以周期性网格交叉图案进行采样。SPOH 的重建图像是一个稀疏的图像，具有大量的空洞和锐度和对比度的退化。在本文中，我们提出了一种基于新采样方案的方法，结合随机二分搜索（SBS），以获得最佳采样点阵，该点阵可用于生成具有增强重建图像的仅相位全息图。实验结果表明，使用我们提出的方法，重建图像的保真度和质量都有所提高。