当前位置: X-MOL 学术Light Sci. Appl. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Optical fibre based artificial compound eyes for direct static imaging and ultrafast motion detection
Light: Science & Applications ( IF 20.6 ) Pub Date : 2024-09-18 , DOI: 10.1038/s41377-024-01580-5
Heng Jiang 1, 2 , Chi Chung Tsoi 1, 2 , Weixing Yu 3 , Mengchao Ma 4 , Mingjie Li 1 , Zuankai Wang 5 , Xuming Zhang 1, 2, 6
Affiliation  

Natural selection has driven arthropods to evolve fantastic natural compound eyes (NCEs) with a unique anatomical structure, providing a promising blueprint for artificial compound eyes (ACEs) to achieve static and dynamic perceptions in complex environments. Specifically, each NCE utilises an array of ommatidia, the imaging units, distributed on a curved surface to enable abundant merits. This has inspired the development of many ACEs using various microlens arrays, but the reported ACEs have limited performances in static imaging and motion detection. Particularly, it is challenging to mimic the apposition modality to effectively transmit light rays collected by many microlenses on a curved surface to a flat imaging sensor chip while preserving their spatial relationships without interference. In this study, we integrate 271 lensed polymer optical fibres into a dome-like structure to faithfully mimic the structure of NCE. Our ACE has several parameters comparable to the NCEs: 271 ommatidia versus 272 for bark beetles, and 180o field of view (FOV) versus 150–180o FOV for most arthropods. In addition, our ACE outperforms the typical NCEs by ~100 times in dynamic response: 31.3 kHz versus 205 Hz for Glossina morsitans. Compared with other reported ACEs, our ACE enables real-time, 180o panoramic direct imaging and depth estimation within its nearly infinite depth of field. Moreover, our ACE can respond to an angular motion up to 5.6×106 deg/s with the ability to identify translation and rotation, making it suitable for applications to capture high-speed objects, such as surveillance, unmanned aerial/ground vehicles, and virtual reality.



中文翻译:


基于光纤的人工复眼,用于直接静态成像和超快运动检测



自然选择促使节肢动物进化出具有独特解剖结构的奇妙自然复眼(NCE),为人工复眼(ACE)在复杂环境中实现静态和动态感知提供了有前景的蓝图。具体来说,每个 NCE 都利用分布在曲面上的小眼阵列(成像单元)来实现丰富的优点。这启发了许多使用各种微透镜阵列的 ACE 的开发,但所报道的 ACE 在静态成像和运动检测方面的性能有限。特别是,模仿并置方式以有效地将曲面上的许多微透镜收集的光线传输到平面成像传感器芯片,同时保持它们的空间关系而不发生干扰是具有挑战性的。在这项研究中,我们将 271 根透镜聚合物光纤集成到一个圆顶状结构中,以忠实地模仿 NCE 的结构。我们的 ACE 有几个与 NCE 相当的参数:小眼为 271,树皮甲虫为 272;视场 (FOV) 为 180 o ,大多数节肢动物为 150-180 o FOV。此外,我们的 ACE 在动态响应方面优于典型 NCE 约 100 倍:Glossina morsitans 为 31.3 kHz,而Glossina morsitans为 205 Hz。与其他报道的 ACE 相比,我们的 ACE 能够在近乎无限的景深内实现实时、180 °全景直接成像和深度估计。此外,我们的ACE可以响应高达5.6×10 6 deg/s的角运动,并能够识别平移和旋转,使其适合捕捉高速物体的应用,例如监控、无人机/地面车辆、和虚拟现实。

更新日期:2024-09-18
down
wechat
bug