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红外与激光工程, 2022, 51 (1): 20210935, 网络出版: 2022-03-08 元宇宙中的动态全息三维显示：发展与挑战（特邀） 下载： 1588次Progress and challenges in dynamic holographic 3D display for the metaverse (Invited)Get PDFFull Text图表MetricsMore 曹良才 何泽浩 *刘珂瑄 隋晓萌
作者单位 清华大学 精密仪器系 精密测试技术及仪器国家重点实验室，北京 100084
三维显示 元宇宙 计算全息 计算全息图 全息显示系统 三维内容源 three-dimensional display metaverse computer-generated holography computer-generated hologram holographic display system three-dimensional content 摘要相比二维显示，三维显示可以提供更接近真实世界的图像内容，是5G、大数据、元宇宙和物联网领域的关键性技术。计算全息三维显示可以提供所有种类的深度线索，被认为是三维显示的终极实现方式，在智能制造、远程教育、异地办公和娱乐社交等领域都具有广阔的应用前景。文中首先介绍了计算全息技术的发展历史和重要技术节点，分析了高质量全息动态三维显示面临的挑战，主要包括计算全息图重建质量不足、波前调制器件和全息显示系统性能受限以及三维内容源匮乏等，进一步介绍了已有的解决方案，比较了各类方案的优势与不足，进而分析了高质量全息动态三维显示的主要研究方向，包括低噪声全息图的获取、像质优化和畸变校正技术的开发以及三维内容源的构建。实现高质量、低噪声、无畸变、高刷新、真三维的动态全息三维显示，是计算全息显示发展的必由之路，也是元宇宙等典型应用对全息三维显示提出的必然要求。 AbstractCompared to 2D display, 3D display presents information with more realistic visual perceptions. It is a vital technology in the fields of 5G, metaverse, big data and internet of things. 3D display based on computer-generated holography can provide various kinds of depth cues. It presents an outstanding 3D effect and is considered as an ultimate form of 3D display. It is believed that holographic 3D display would have broad application prospects in intelligent manufacturing, distance education, telecommuting, entertainment and social networking. In this review, the history and important technical nodes of computer-generated holography were introduced. According to the current status of the technology, main challenges faced by high-quality dynamic holographic 3D display were introduced, including limited accuracy of computer-generated hologram, imperfect performance of wavefront modulator and holographic display system, and shortage of 3D content. Focusing on these challenges, the existing solutions were summarized. Advantages and disadvantages of various solutions were compared. Research directions of high-quality dynamic holographic 3D display were analyzed, including low-noise holographic algorithms, distortion calibration methods, and 3D content generation technologies. Holographic 3D display with low noise, high refresh rate and high precision, which were inevitable in some applications such as meteverse, could be realized by addressing these issues. PDF全文 曹良才, 何泽浩, 刘珂瑄, 隋晓萌. 元宇宙中的动态全息三维显示：发展与挑战（特邀）[J]. 红外与激光工程, 2022, 51(1): 20210935. Liangcai Cao, Zehao He, Kexuan Liu, Xiaomeng Sui. Progress and challenges in dynamic holographic 3D display for the metaverse (Invited)[J]. Infrared and Laser Engineering, 2022, 51(1): 20210935.
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