关于建立自由曲面测量-建模闭环系统的研究

摘要

In order to solve no feedback problem in measuring and modeling process,a new method of free-from surface's reverse engineering was proposed,making data acquisition and surface reconstruction form a closed-loop system,so the time of the whole re-verse engineering was shortened,the quality of reconstructed models was improved. The core was the CMM adaptive measuring method and non-uniform B-spline surface reconstruction method were used to integrate the free-from surface measuring and modeling in a closed-loop system,realizing the CMM real-time online measurement and reconstructed surface real-time update.%为了解决未知自由曲面测量和建模过程无反馈的问题，提出一种自由曲面逆向工程的新方法，使得数据获取和曲面重构形成闭环系统，缩短了整个逆向工程的时间，提高了重构模型的质量。核心是使用CMM自适应测量方法和非均匀B样条曲面重构方法，将自由曲面测量和建模集成在一个闭环系统中，实现CMM实时在线测量和重构曲面实时更新。