计算全息图(CGH)的快速生成技术是全息三维显示系统的关键技术, 基于点源模型的计算全息图由于模型简单、操作灵活而成为了计算全息方法中一个重要分支。但是使用点源模型计算全息图计算量庞大, 为了达到实时显示的要求, 提高全息图计算速度的方法被不断提出。对点源模型快速算法的发展历程进行了综述。从计算全息图的原理出发, 根据点源模型快速算法的研究方向, 将其分为算法和算法与高性能硬件结合两大类。通过分析各类算法的实现方法和存在的问题, 指出了其改进的方向, 介绍了高性能硬件对计算全息图的贡献, 最后对点源模型快速算法的未来研究方向进行了展望。

The rapid generation technology of computer-generated hologram (CGH) is the key technology of the holographic three-dimensional display system. The calculation of holograms based on point source model is an important branch of computational holography because of its simple model and flexible operation. However, the calculations of point source model for holograms are enormous. In order to meet the requirements of real-time display, the methods of improving the calculation speed of hologram have been put forward continuously. The development of the fast algorithm of point source model is reviewed. Based on the principle of CGH, according to the research direction of the fast algorithm of point source model, it is divided into two categories: algorithm, and combination of algorithm and high-performance hardware. Through the analysis of the implementation methods and existing problems of all kinds of algorithms, the direction of improvement is pointed out, and the contribution of high-performance hardware to CGH is introduced. Finally, the future research direction of point source model fast algorithm is prospected.