arXiv:2512.00912cs.CVcs.AI2025-12被引 1

用深度学习自动识别微体古生物,准确率达95.6%。

ForamDeepSlice: A High-Accuracy Deep Learning Framework for Foraminifera Species Classification from 2D Micro-CT Slices

  • 基于2D微CT切片构建深度学习分类框架,采用标本级划分避免数据泄露。
  • 集成模型在12个物种上测试准确率达95.64%,顶3准确率99.6%。
  • 提供交互式仪表板,支持实时分类与三维切片匹配,适合地质科研人员使用。

本研究提出一种完整的深度学习流程,用于基于3D扫描生成的2D微CT切片自动分类有孔虫物种。我们构建了一个科学严谨的数据集,包含97个微CT扫描标本,涵盖27个物种,从中选取12个物种(每种至少4个3D模型)进行稳健分类。为保证方法完整性并防止数据泄露,采用标本级数据划分,最终获得109,617张高质量2D切片(训练44,103张,验证14,046张,测试51,468张)。我们评估了七种先进2D卷积神经网络架构,采用迁移学习。最终集成模型ForamDeepSlice(FDS)结合ConvNeXt-Large与EfficientNetV2-Small,测试准确率达95.64%,顶3准确率99.6%,所有物种的AUC达0.998。为支持实际应用,我们开发了交互式高级仪表板,支持实时切片分类及三维切片匹配,采用SSIM、NCC和Dice系数等相似性度量。该工作为人工智能辅助微体古生物学鉴定建立了新基准,并提供了可完全复现的有孔虫分类研究框架,弥合了深度学习与地球科学应用之间的差距。

原文摘要 · Abstract (English)

This study presents a comprehensive deep learning pipeline for the automated classification of foraminifera species using 2D micro-CT slices derived from 3D scans. We curated a scientifically rigorous dataset of 97 micro-CT scanned specimens spanning 27 species, from which we selected 12 representative species with sufficient specimen counts (at least four 3D models each) for robust classification. To ensure methodological integrity and prevent data leakage, we employed specimen-level data splitting, resulting in 109,617 high-quality 2D slices (44,103 for training, 14,046 for validation, and 51,468 for testing). We evaluated seven state-of-the-art 2D convolutional neural network (CNN) architectures using transfer learning. Our final ensemble model, ForamDeepSlice (FDS), combining ConvNeXt-Large and EfficientNetV2-Small, achieved a test accuracy of 95.64%, with a top-3 accuracy of 99.6% and an area under the ROC curve (AUC) of 0.998 across all species. To facilitate practical deployment, we developed an interactive advanced dashboard that supports real-time slice classification and 3D slice matching using advanced similarity metrics, including SSIM, NCC, and the Dice coefficient. This work establishes new benchmarks for AI-assisted micropaleontological identification and provides a fully reproducible framework for foraminifera classification research, bridging the gap between deep learning and applied geosciences.

有孔虫分类深度学习微CT地质AI

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