论文标题
固体浸入式微片阵列基于3D体内成像的光场相机
Solid immersion microlens arrays-based light-field camera for 3D in vivo imaging
论文作者
论文摘要
光场成像有助于3D摄像机的微型化，同时需要扩展内窥镜检查和口内扫描等实用应用的深度（DOF）。在这里，我们使用固体浸入式微片阵列（SIMLAS）进行3D生物医学成像报告了一个光场摄像机（LFC）。实验结果表明，浸入PDMS膜中，MLA的焦距增加了2.7倍，并且通过浸入PDMS膜增强了6.9％。特别是，Simlas的F数超过了由热回流制造的常规MLA的极限，从而导致较大的DOF。基于Simlas的LFC已成功地获取了作为手持扫描仪的牙科幻影的深度图。该LFC提出了一种开发体内3D成像系统紧凑的新方法。
Light-field imaging facilitates the miniaturization of 3D cameras while it requires the extension of the depth-of-field (DoF) for practical applications such as endoscopy and intraoral scanning. Here we report a light-field camera (LFC) using solid immersion microlens arrays (siMLAs) for 3D biomedical imaging. The experimental results show that the focal length of MLAs is increased by 2.7 times and the transmittance is enhanced up to 6.9% by immersion in PDMS film. In particular, the f-number of siMLAs exceeds the limit of conventional MLAs fabricated by thermal reflow, resulting in a larger DoF. The LFC based on siMLAs has successfully acquired the depth map of a dental phantom as a hand-held scanner. This LFC suggests a new way for developing a compact in vivo 3D imaging system.
