arXiv:2511.09574physics.opticseess.IV2025-11

便携式显微镜实现实时无标记分子成像,无需复杂解混。

HAMscope: a snapshot Hyperspectral Autofluorescence Miniscope for real-time molecular imaging

论文配图:HAMscope: a snapshot Hyperspectral Autofluorescence Miniscope for real-time molecular imaging
图 1 · 摘自论文原文
  • 用聚合物扩散片编码光谱信息,单帧重建30通道高光谱图像。
  • 视频速率下光谱精度误差均值仅0.0048,支持直接分子图生成。
  • 适用于植物、神经、病理等多领域,可处理未见组织类型。

我们提出HAMscope,一种紧凑型、快照式高光谱自荧光微型显微镜,可在多种生物系统中实现实时、无标记的分子成像。通过在宽场微型显微镜中集成薄聚合物扩散片,系统对每帧进行光谱编码,并采用概率深度学习框架从单张图像重建30通道高光谱数据(452–703 nm)或直接推断分子组成图。基于变换器注意力机制的可扩展多路U-Net架构结合像素级不确定性估计,在视频速率下实现高时空光谱保真度(平均绝对误差~0.0048)。初始验证在植物系统中完成,包括杨树和软木组织中的木质素、叶绿素与角质层成像。该平台可灵活拓展至神经活动映射、代谢组学分析及组织病理学应用。结果显示系统对分布外组织类型具有泛化能力,且无需传统光谱解混即可实现直接分子定位。HAMscope建立了一种结合极简光学与先进深度学习的通用、不确定度感知光谱成像框架,为神经科学、环境监测与生物医学领域的实时生化成像提供广泛工具。

原文摘要 · Abstract (English)

We introduce HAMscope, a compact, snapshot hyperspectral autofluorescence miniscope that enables real-time, label-free molecular imaging in a wide range of biological systems. By integrating a thin polymer diffuser into a widefield miniscope, HAMscope spectrally encodes each frame and employs a probabilistic deep learning framework to reconstruct 30-channel hyperspectral stacks (452 to 703 nm) or directly infer molecular composition maps from single images. A scalable multi-pass U-Net architecture with transformer-based attention and per-pixel uncertainty estimation enables high spatio-spectral fidelity (mean absolute error ~ 0.0048) at video rates. While initially demonstrated in plant systems, including lignin, chlorophyll, and suberin imaging in intact poplar and cork tissues, the platform is readily adaptable to other applications such as neural activity mapping, metabolic profiling, and histopathology. We show that the system generalizes to out-of-distribution tissue types and supports direct molecular mapping without the need for spectral unmixing. HAMscope establishes a general framework for compact, uncertainty-aware spectral imaging that combines minimal optics with advanced deep learning, offering broad utility for real-time biochemical imaging across neuroscience, environmental monitoring, and biomedicine.

高光谱成像无标记成像深度学习微型显微镜

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。