|
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: Reverse engineering Free-form surface Surface
digitizing Parametric optimization
CLC No: TP391
国家教育部重点基金资助项目(教技司98121). Received 20010625, received in revised form
20020430
|