An approach is proposed to estimate several differential properties, including Gaussian curvature, mean curvature and main curvature on point-sampled surfaces in presence of noise.
本文提出一种直接在点采样曲面上计算曲面的高斯曲率、平均曲率及主曲率等局部微分性质的方法。
By using differential geometry property of small object of infrared image, computing minimal normal curvature which is used as the threshold to obtain candidate objects for small target.
利用图像小目标的微分几何特性，计算图像的最小法向曲率，并以此为阈值，获得小目标的候选对象。
This paper presents a new method in which the disc cutter always has the same curvature and the curvature differential with that of the surfaces being machined.
提出的内凹的盘铣刀铣可加工凹曲面又加工凸曲面。通过改变刀盘曲轴线与曲面的截线和刀盘半径有相同的曲率和曲率导数。
应用推荐