从波长空间中重建光学连贯断层图像,使用深度学习
Maryam Viqar1,2, Erdem Sahin1, Elena Stoykova2
1Faculty of Information Technology and Communication Sciences, Tampere University, 33720 Tampere, Finland.
Sensors (Basel, Switzerland)
|January 11, 2025
概括
我们开发了一种深度学习 (DL) 方法,用于从波长域直接进行光学连贯断层扫描 (OCT) 图像重建,从而减少计算复杂性并提高图像质量.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 光学连贯性断层扫描技术
- 深度学习 (Deep Learning) 是一种深度学习.
背景情况:
- 传统的福里埃域光学连贯断层扫描 (FD-OCT) 需要波数域重新采样,增加了硬件和计算需求.
- 由于低连贯性干涉测量,OCT图像本质上受到斑点噪声的影响.
研究的目的:
- 提出一种计算效率高的深度学习 (DL) 方法,用于从波长 (λ) 域中直接重建减少斑点的OCT图像.
- 为了减少与传统的FD-OCT方法相关的计算复杂性.
主要方法:
- 两个编码解码深度学习网络的顺序应用:空间域卷积神经网络 (SD-CNN) 和里埃域CNN (FD-CNN).
- SD-CNN重建了形态结构,并抑制了来自波长域边缘的退化图像的噪音.
- FD-CNN进一步优化了福里埃域 (FD) 中的图像质量.
主要成果:
- 在获得高质量,减少斑点的OCT图像方面,已证明了定量和视觉有效性.
- 与传统方法相比,显著减少了计算复杂度.
- 成功地从波长域直接重建OCT图像,绕过波数域重新采样.
结论:
- 拟议的基于DL的方法为OCT图像重建提供了简化和计算效率高的替代方案.
- 这种方法有效地减少了斑点噪声,并提高了图像质量.
- 这项工作为未来在OCT图像处理和重建方面的进步提供了基础.
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