测量立体物体的截面形状并将其复制,其方法大体上可分为接触式和非接触式两大类。接触式测量方法有如下缺点:测量对象为生命体时,因测量力会使生命体变形;测量艺术品时,因接触会产生破损。非接触式是电学和光学的测量方法,目前广泛采用的光学方法有立体照像法、莫尔地形描述法、光截面法。这些光学测量方法也各有一些 Measuring the cross-sectional shape of a three-dimensional object and copying it, the method can be broadly divided into two categories of contact and non-contact. Contact measurement methods have the following disadvantages: When the measurement object is a living body, the living body will deform due to the measurement force; when measuring the artwork, the contact may be damaged. Non-contact is a measure of electrical and optical methods, the current widely used optical methods are three-dimensional photographic method, description of the moore topography, light cross-section method. These optical measurement methods also have some