We propose a method that reduces the computation time and memory requirement in non-hogel-based hologram synthesis from light field data. The non-hogel-based technique synthesizes coherent complex field for a three-dimensional scene from its light field. Unlike conventional holographic stereogram, the non-hogel-based technique reconstructs continuous parabolic wavefront for individual three-dimensional object point by globally processing the light field. However, the global processing increases the computational load significantly, making it hard to synthesize holograms with high pixel resolution. The proposed technique reduces the computational burden by processing each two-dimensional angular frequency slice of the four-dimensional light field independently. Hologram tiling technique is also proposed to make the hologram synthesis process scalable. Using the hologram tiling and the angular-frequency-slice-based processing, 25K×25 K pixel resolution hologram was synthesized successfully.

中文翻译：

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高像素分辨率非基于hogel的光场全息图的高效计算方案

我们提出了一种方法，该方法可以减少基于光场数据的非基于全息的全息图合成中的计算时间和内存需求。基于非霍格的技术从其光场为三维场景合成相干复场。与传统的全息立体图不同，基于非霍格的技术通过全局处理光场来为单个三维物体点重建连续的抛物线波阵面。然而，全局处理显着增加了计算负荷，从而使得难以合成具有高像素分辨率的全息图。所提出的技术通过独立地处理二维光场的每个二维角频率切片来减少计算负担。还提出了全息图平铺技术以使全息图合成过程可扩展。通过全息图拼接和基于角频率切片的处理，成功合成了25K×25K像素分辨率的全息图。