机械装备逆向工程是指在没有产品图纸或者图纸不完整的情况下，按照现有产品模型的实物，利用相关技术获取产品外形的过程。本项目旨在研究探索大型机械装备逆向工程中的多目视觉测量理论和方法。主要研究内容包括：（1）摄像机畸变模型建模和参数估计；（2）基于宏特征的摄像机标定；（3）大视野低分辨率相机和小视野高分辨率相机的混合相机测量；（4）测量误差分析与建模。本项目的难点是对弱纹理大型物体的视觉高精度测量，项目成果不仅可以为大型机械装备逆向工程提供技术手段，而且可望丰富和发展基于视觉的大型物体测量理论。

The reverse engineering of mechanical equipment is the process to recover the 3D geometric model of a mechanical product by some measuring means from the real product when either its design drawing is only partially available or completely absent. This project is to investigate the theories and algorithms of multi-view based measurement for reverse engineering of large mechanical equipment. The main contents include: (1) Camera distortion modeling and parameter estimation; (2) Macro-feature based camera calibration; (3) Precision measurement by a fixed vision system composed of a large-view camera with low resolution and a small-view camera with high resolution; (4)Measurement error modeling and analysis. The main difficulties of the project lie in the low textured nature of mechanical products to be measured, their very large size, and the required high measurement accuracy. The project’s expected outcome could not only useful to the reverse engineering of large mechanical equipment, but it could also enrich visual metrology research and promote its further development.