Dynamic interactive bitwise meta-holography with ultra-high computational and display frame rates
초고컴퓨팅 및 프레임 속도 표시를 위한 동적 대화형 비트 단위 홀로그램
Una Holografía dinámica interactiva por bits con una tasa de fotogramas de computación y visualización súper alta
Holographie dynamique interactive bit par bit avec calcul ultra élevé et fréquence d'images d'affichage
Динамическая интерактивная постатейная голография со сверхвысокой частотой кадров
Yuncheng Liu 刘耘呈 ¹, Ke Xu 许可 ¹, Xuhao Fan 范旭浩 ¹, Xinger Wang 王星儿 ¹, Xuan Yu 余轩 ¹, Wei Xiong 熊伟 ¹ ², Hui Gao 高辉 ¹ ²
¹ Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
中国 武汉 华中科技大学光学与电子信息学院 武汉光电国家研究中心
² Optics Valley Laboratory, Wuhan 430074, China
中国 武汉 湖北光谷实验室
Opto-Electronic Advances, 25 January 2024

Interactive holography offers unmatched levels of immersion and user engagement in the field of future display. Despite of the substantial progress has been made in dynamic meta-holography, the realization of real-time, highly smooth interactive holography remains a significant challenge due to the computational and display frame rate limitations. In this study, we introduced a dynamic interactive bitwise meta-holography with ultra-high computational and display frame rates.

To our knowledge, this is the first reported practical dynamic interactive metasurface holographic system. We spatially divided the metasurface device into multiple distinct channels, each projecting a reconstructed sub-pattern. The switching states of these channels were mapped to bitwise operations on a set of bit values, which avoids complex hologram computations, enabling an ultra-high computational frame rate. Our approach achieves a computational frame rate of 800 kHz and a display frame rate of 23 kHz on a low-power Raspberry Pi computational platform.

According to this methodology, we demonstrated an interactive dynamic holographic Tetris game system that allows interactive gameplay, color display, and on-the-fly hologram creation. Our technology presents an inspiration for advanced dynamic meta-holography, which is promising for a broad range of applications including advanced human-computer interaction, real-time 3D visualization, and next-generation virtual and augmented reality systems.
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