关键词: 参数优化, 反求工程, 曲面数字化, 自由曲面

Abstract: Based on the existing problems in free-form surface reconstruction, surface digitizing and parametric optimization of random points are probed. One adaptive digital scheme based on surface shape characteristics is presented. The parametric optimization model is established on the basis of explicit least square error, and the parameters of digital points are optimized by subspace interior reflective conjugate gradient method. The experimental results indicate that surface sampling efficiency is improved rapidly, and the optimizing algorithm has the characteristic of rapid convergence from the reasonable parametric optimizing model.

Key words: Free-form surface Surface digitizing, Parametric optimization, Reverse engineering