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Improvement of camera arrangement in computer-generated holograms synthesized from multi-view images

机译：从多视图图像合成的计算机生成全息图中相机布置的改进

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Computer-generated hologram (CGH) is a technique that enables recording optical systems for holography by computer simulation, and can reconstruct ideal 3D images. Since CGH requires the model data of objects, it is necessary for creating 3D images of real existing objects to model them precisely. However, it is often difficult to obtain this data. To solve this problem, there has been much research into multi-view projection image based methods that do not require 3D model data. CGH using integral photography and CGH using multi-view projection obtained by lens array are examples of this research. However, these methods have some problems. First, their optical recording systems are complex and expensive, and therefore, realizing these systems is difficult. Another problem is that enormous projections are required to generate a hologram with sufficient pixel size. In the past, a method to generate holograms from multi-view images taken with digital cameras was proposed. Additionally, to generate CGHs using multi-view images from randomly arranged cameras, we proposed a method that uses distance transformations, rotations of light waves, and an algorithm that sets up hologram parameters automatically by using camera arrangement information. In this paper, the results of numerical reconstructions are compared, and both the motion parallax and resolution of the reconstructed images are discussed. The proper number of multi-view projections needed will be derived from this discussion.
机译：计算机生成的全息图（CGH）是一种技术，可以通过计算机仿真为全息照相术记录光学系统，并可以重建理想的3D图像。由于CGH需要对象的模型数据，因此有必要创建真实现有对象的3D图像以对其进行精确建模。但是，通常很难获得此数据。为了解决该问题，已经对不需要3D模型数据的基于多视图投影图像的方法进行了很多研究。使用积分摄影的CGH和使用通过透镜阵列获得的多视图投影的CGH是本研究的示例。但是，这些方法存在一些问题。首先，它们的光学记录系统复杂且昂贵，因此难以实现这些系统。另一个问题是需要大量的投影来产生具有足够像素尺寸的全息图。过去，提出了一种从用数码相机拍摄的多视点图像中生成全息图的方法。此外，为了使用来自随机排列的相机的多视图图像生成CGH，我们提出了一种使用距离变换，光波旋转的方法，以及一种通过使用相机布置信息自动设置全息图参数的算法。本文比较了数值重建的结果，并讨论了运动视差和重建图像的分辨率。所需的适当数量的多视图投影将从此讨论中得出。

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