Furthermore , the current research about body measuring and modeling is just for costume and military affairs , and pay more attention to the head dimension and shape . with the development of human nature during the manufacturing , body cad model is widely applied in industry design , ergonomics , engineering design , humanics research and iatrology research . the body cad model also can be the basic data for the design of respirator 本文使用nurbs曲面直接拟合的方法对测量的点云进行曲面重构,将系统的优化方法应用到nurbs曲面重构中,利用插值曲线对测量点云进行分块处理,解决用nurbs曲面拟合中曲面的光顺与曲面与点云的误差之间的矛盾问题,使反求模型中各曲面片之间相互连接、光顺过渡且能够反映出人体头部的细部特征。
