一种用于自由手三维超声波的新型形状先导自动校准方法
Xing-Yang Liu1, Jia-Xu Zhao1, Hui Tang2
1The School of Biological Science and Medical Engineering, Southeast University, Nanjing 211189, China.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
这项研究引入了使用N-线幻影的自动超声波探针校准方法. 这项新技术提高了手术导航和3D成像系统的精度和效率.
科学领域:
- 医学成像
- 机器人技术
- 计算机辅助的手术
背景情况:
- 精确的空间绘制对于超声波指导的手术导航和3D成像至关重要.
- 目前的超声波探针校准方法由于手工工艺和异常灵敏性而缺乏稳定性和效率.
研究的目的:
- 开发一个全自动化和强大的超声波探测器校准框架.
- 为了提高超声波探针校准的准确性,可重复性和效率.
主要方法:
- 一个新的自动校准框架使用N-线幻影的几何先验.
- 基于随机样本共识 (RANSAC) 算法的强大的特征点提取和混合异常值拒绝策略.
主要成果:
- 通过各种成像深度实现分毫米精度 (<0.6毫米).
- 校准过程在两分钟内完成,具有很高的重复性.
- 证明了对异常值的稳定性.
结论:
- 拟议的框架为超声波探测器校准提供了强大,准确和时间高效的解决方案.
- 该方法在外科导航和3D超声波应用中具有显著的临床整合潜力.
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