一个单眼可变放大3D腹腔镜系统使用双液体镜头
Fan Mao1, Tianqi Huang1, Longfei Ma1
1Department of Biomedical EngineeringSchool of MedicineTsinghua University Beijing 100084 China.
IEEE journal of translational engineering in health and medicine
|December 7, 2023
概括
这项研究引入了一种新的腹腔镜系统,使用双液体透镜进行可变放大和实时3D重建. 该系统在微创手术 (MIS) 期间增强了手术深度感知和病变可视化.
科学领域:
- 医疗成像医学成像
- 手术技术 手术技术
- 计算机视觉 计算机视觉
背景情况:
- 最少侵入性手术 (MIS) 由于单视图腹腔镜而缺乏3D感知.
- 现有的深度重建方法通常需要修改光学或复杂的设置.
- 目前的系统在变量放大和实时3D重建方面扎.
研究的目的:
- 开发一个便携式腹腔镜系统,用于实时单眼3D重建,可变放大.
- 在MIS程序中增强深度感知和可视化.
- 为了克服传统腹腔镜在提供3D视图和可适应放大方面的局限性.
主要方法:
- 一个新的光学结构,配有双液体镜头,用于自动放大和自动对焦,无需移动部件.
- 一个深度学习网络,使用来自失焦的深度 (DFD) 来从可变的焦距进行深度估计.
- 将光学系统与传统腹腔镜集成,以提高功能.
主要成果:
- 实现了0.68-1.44x的变焦率,实时深度估计为6fps.
- 单眼3D重建精度至少为6mm.
- 在近距离的工作距离 (1mm以下) 提供了清晰的可视化.
结论:
- 开发的系统提供可变放大和实时3D深度感知,用于腹腔镜.
- 它通过提供放大,清晰的视图来改善病变检测和大小诊断.
- 便携式设计允许与现有的腹腔镜仪器集成,增强外科手术能力.
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