arXiv:2509.18926cs.CV2025-09ICCV

自动化分析脑神经突触结构动态变化,提升研究学习与记忆的效率。

SynapFlow: A Modular Framework Towards Large-Scale Analysis of Dendritic Spines

  • 分模块设计,融合Transformer与时空一致性建模
  • 在真实数据上实现高精度检测与跨时间追踪
  • 开源数据集与代码,助力神经科学大规模研究

树突棘是大脑兴奋性突触的关键结构,其大小可反映突触效能。对三维+时间显微图像中树突棘的检测与追踪,对研究学习与记忆的神经机制至关重要。然而,大规模分析仍面临挑战且耗时费力。本文提出一个模块化机器学习流程,用于自动检测、时间追踪和特征提取在双光子显微镜长期记录的体积数据中的树突棘。该方法结合基于Transformer的检测模块、融合空间特征的深度追踪组件、利用空间一致性关联跨时间3D棘的追踪模块,以及量化生物学相关棘属性的特征提取单元。我们在公开标注数据集上验证了方法,并发布了两个互补的标注数据集:一个用于检测与深度追踪,一个用于时间追踪——据我们所知,后者是首个此类数据集。为促进后续研究,我们开源数据、代码及预训练权重(https://github.com/pamelaosuna/SynapFlow),建立可扩展的端到端树突棘动态分析基准。

原文摘要 · Abstract (English)

Dendritic spines are key structural components of excitatory synapses in the brain. Given the size of dendritic spines provides a proxy for synaptic efficacy, their detection and tracking across time is important for studies of the neural basis of learning and memory. Despite their relevance, large-scale analyses of the structural dynamics of dendritic spines in 3D+time microscopy data remain challenging and labor-intense. Here, we present a modular machine learning-based pipeline designed to automate the detection, time-tracking, and feature extraction of dendritic spines in volumes chronically recorded with two-photon microscopy. Our approach tackles the challenges posed by biological data by combining a transformer-based detection module, a depth-tracking component that integrates spatial features, a time-tracking module to associate 3D spines across time by leveraging spatial consistency, and a feature extraction unit that quantifies biologically relevant spine properties. We validate our method on open-source labeled spine data, and on two complementary annotated datasets that we publish alongside this work: one for detection and depth-tracking, and one for time-tracking, which, to the best of our knowledge, is the first data of this kind. To encourage future research, we release our data, code, and pre-trained weights at https://github.com/pamelaosuna/SynapFlow, establishing a baseline for scalable, end-to-end analysis of dendritic spine dynamics.

神经科学图像分析机器学习树突棘

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