Digital holography (DH) enables non-contact, noninvasive 3D imaging of transparent and moving microscopic samples by capturing amplitude and phase information in a single shot. In this work, we present a compact, low-cost, real-time smartphone-based DHM system accelerated by GPUs. The system comprises a 3D-printed optical system using readily available image sensors and lasers, coupled with an Android app for hologram reconstruction, extracting amplitude and phase information. Results show a frame rate improvement of approximately 1.65x compared to a CPU-only system. This inexpensive, compact DHM, combining 3D-printed optics and smartphone-based reconstruction, offers a novel approach compared to existing systems and holds promise for fieldwork and remote diagnostics.

翻译：数字全息技术通过单次拍摄捕获振幅与相位信息，能够对透明及运动微观样本进行非接触、无损伤的三维成像。本研究提出一种基于GPU加速的紧凑型低成本实时智能手机数字全息显微镜系统。该系统采用3D打印光学结构，配备易获取的图像传感器与激光器，并通过Android应用程序实现全息图重建及振幅相位信息提取。实验结果显示，相较于纯CPU系统，其帧率提升约1.65倍。这种融合3D打印光学与智能手机重建的低成本紧凑型数字全息显微镜，为现有系统提供了创新方案，在野外作业与远程诊断领域具有应用前景。