近年来,客观世界和场景三维信息需求量的陡增,促使结构光三维测量技术快速发展。基于条纹投影和相移条纹分析的三维成像技术具有较好的精度和鲁棒性,在众多的技术方法中脱颖而出,被广泛地应用于工业检测、文物数字化、生物医学检测领域。而在人机交互、虚拟现实、在线检测、远程手术等具有时效性要求的应用场景中,实现实时三维测量具有重要意义和明显价值。首先简要介绍了基于相移条纹分析的三维成像技术基本原理,随后分类讨论了实时三维成像的多种优化实现方向,回顾了各类方向中不同的技术方案。最后,总结了基于相移条纹分析的实时三维成像技术所面临的挑战及有潜力的研究方向。

In recent years, the demand for three-dimensional (3D) information of the objective world and scene has increased sharply and drives the rapid development of 3D measurement techniques based on structured light illumination. The 3D imaging technique based on fringe projection and phase-shift fringe analysis has high accuracy and robustness, standing out among many techniques, and is widely used in industrial inspection, digitalization of antique, biomedicine detection, and so on. In the application scenarios with timeliness requirements such as human-computer interaction, virtual reality, online detection, and remote surgery, realizing real-time 3D measurement is of great significance and obvious value. In this paper, the basic theory of 3D imaging technique based on phase-shift fringe analysis was introduced. Several optimization directions for real-time 3D imaging were discussed, and different methods in various optimization directions were reviewed. Finally, the challenges and potential research directions of real-time 3D imaging technique based on phase-shift fringe analysis were summarized.