本文通过研究三维扫描振镜及工业相机耦合构建的三维原位激光加工系统，提出了一种基于线结构光的工件三维扫描测量方式来获取工件三维模型信息的方法。该测量方法创新地将高度标定法用于三维测量精度的提高中，并成功地保证了后续加工时激光在三维工件上的精确聚焦。为了实现便捷高效的激光三维加工，研究人员开发了相关的原位加工软件，并通过实验案例验证了基于三维扫描振镜的原位激光加工方法与实验装置的可行性及实用性。与传统的线结构光测量方法相比，本研究的优点在于提出的方法不需要光平面标定和配置额外的运动轴来实现三维重建，并体现出了较高便捷性及较低成本优势：通过原位的激光加工方式可以实现测量加工一体化，进而降低时间和劳动成本。

In this study, a three-dimensional (3D) in - situ laser machining system integrating laser measurement and machining was built using a 3D galvanometer scanner equipped with a side-axis industrial camera. A line structured light measurement model based on a galvanometer scanner was proposed to obtain the 3D information of the workpiece. A height calibration method was proposed to further ensure measurement accuracy, so as to achieve accurate laser focusing. In - situ machining software was developed to realize time-saving and labor-saving 3D laser processing. The feasibility and practicability of this in - situ laser machining system were verified using specific cases. In comparison with the conventional line structured light measurement method, the proposed methods do not require light plane calibration, and do not need additional motion axes for 3D reconstruction; thus they provide technical and cost advantages. The in - situ laser machining system realizes a simple operation process by integrating measurement and machining, which greatly reduces labor and time costs.