卷积神经网络的重新训练用于内镜高速视频中的喉膜细分
Michael Döllinger1, Tobias Schraut1, Lea A Henrich1
1Division of Phoniatrics and Pediatric Audiology, Department of Otorhino-laryngology Head & Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany.
概括
用各种数据重新训练卷积神经网络 (CNN),可以改善声动态图像细分. 动态知识蒸显示出希望,但当调整模型到新的高速视频 (HSV) 系统时,要小心灾难性遗忘.
科学领域:
- 医疗成像医学成像
- 计算生物学 计算生物学
- 喉腔病理学 喉腔病理学
背景情况:
- 内镜高速视频 (HSV) 系统对于评估声动态至关重要.
- 在HSV技术的进步需要更新神经网络 (NN) 模型,以准确的图像处理.
- 现有的NN模型需要重新培训,以适应新的记录方式和数据变化.
研究的目的:
- 评估在HSV图像细分中使用的卷积神经网络 (CNN) 的再培训策略.
- 为了提高各种HSV系统的基于NN的图像处理的准确性.
- 调查数据多样性和再培训对细分性能的影响.
主要方法:
- 开发了一个新的数据集 (BAGLS-RT),包含来自各种HSV系统,光源和分辨率的21,050张图像.
- 使用扩展数据集重新训练了一个基线CNN (在58,750张图像上训练) .
- 在不同的再培训方法中比较细分精度 (mIoU),包括通过动态知识蒸微调.
主要成果:
- 通过预处理增加数据多样性,将细分精度提高了6.35% (mIoU).
- 随后的再培训进一步提高了额外的2.81% (mIoU) 的细分性能.
- 精细调整与动态知识蒸产生了最有效的再培训结果.
结论:
- 数据增强和再培训对于提高HSV图像分割质量是有效的.
- 动态知识蒸是一种有前途的再培训方法,用于将CNN适应新数据.
- 灾难性遗忘在再培训过程中仍然是一个挑战,需要仔细考虑,以保留以前学到的知识.
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