arXiv:2501.10984cs.CVmath.OC2025-01中稿 · publication in Neu…被引 6

用新型神经网络自动识别牙科拍片中的19个关键点,准确率超80%。

Self-CephaloNet: A Two-stage Novel Framework using Operational Neural Network for Cephalometric Analysis

  • 分两阶段设计,结合自操作网络提升复杂特征学习能力
  • 在ISBI 2015数据集上2mm误差内准确率达82.25%
  • 跨数据集验证表现稳健,适合临床辅助诊断使用

头影测量分析对正畸诊断与治疗规划至关重要。然而,在侧位头影片中手动定位解剖标志点耗时费力。深度学习虽具潜力缓解时间压力,但性能仍存疑。为此,我们提出一种端到端级联深度学习框架Self-CephaloNet,用于预测19个牙科标志点,在ISBI 2015数据集上达到基准性能。得益于自操作神经网络(Self-ONN)的自适应节点能力,其在复杂特征空间中优于传统卷积神经网络。我们引入新型自瓶颈模块嵌入HRNetV2主干网络,在该任务上表现优异。第一阶段结果超越此前研究,端到端模型在Test1和Test2数据集上2mm误差内成功率达70.95%。第二阶段显著提升整体性能,平均成功率达82.25%。此外,外部验证使用北京大学头影数据集,模型在2mm范围内成功率达75.95%。

原文摘要 · Abstract (English)

Cephalometric analysis is essential for the diagnosis and treatment planning of orthodontics. In lateral cephalograms, however, the manual detection of anatomical landmarks is a time-consuming procedure. Deep learning solutions hold the potential to address the time constraints associated with certain tasks; however, concerns regarding their performance have been observed. To address this critical issue, we proposed an end-to-end cascaded deep learning framework (Self-CepahloNet) for the task, which demonstrated benchmark performance over the ISBI 2015 dataset in predicting 19 dental landmarks. Due to their adaptive nodal capabilities, Self-ONN (self-operational neural networks) demonstrate superior learning performance for complex feature spaces over conventional convolutional neural networks. To leverage this attribute, we introduced a novel self-bottleneck in the HRNetV2 (High Resolution Network) backbone, which has exhibited benchmark performance on the ISBI 2015 dataset for the dental landmark detection task. Our first-stage results surpassed previous studies, showcasing the efficacy of our singular end-to-end deep learning model, which achieved a remarkable 70.95% success rate in detecting cephalometric landmarks within a 2mm range for the Test1 and Test2 datasets. Moreover, the second stage significantly improved overall performance, yielding an impressive 82.25% average success rate for the datasets above within the same 2mm distance. Furthermore, external validation was conducted using the PKU cephalogram dataset. Our model demonstrated a commendable success rate of 75.95% within the 2mm range.

医学影像标志点检测深度学习正畸辅助

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