Abstract
Reverse engineering, short, collect a lot of three-dimensional coordinates from the actual objects. And thus establish the three-dimensional model of the object. Higher skills from the manual application of technology to complex computer software and modern measurement technology of modern engineering, reverse engineering have made a great leap forward, and quickly applied to the design and production fields. The technology expander is the result of the technology itself development, but also supports the reverse engineering of the result of the development-related equipment. Reverse engineering technology include data acquisition, data processing, block and surface fitting.
In this paper, according to the fixed-point cloud data and the use of parabolic fitting principle, estimates point cloud data at every point in the surface of differential geometry attributes: the largest surface, including the main direction of the main direction of the smallest, most main curvature, and the youngest principal curvature, surface Vector and so on.
Key words: reverse Engineering differential geometry pick up point cloud properties estimates
