This paper uses the operator of mathematical morphology to abstract image skeleton and carries out the matching of moulding board according to the skeleton angular point of image.
应用数学形态学算子抽取图像的骨架，根据图像骨架角点进行模板匹配。
2
The solution of spherical function is given in the paper, and it is applied reasonably in the problem of eigenvalue of angular momentum square operator.
本文对球函数方程进行了求解，并将球函数方程的解合理地应用于角动量平方算符的本征值问题中。
3
The angular momentum plays vital role in understanding of the atomic and nuclear structure. In quantum mechanics, the ladder operator technique is widely used.