SIFT算法发明者写的文章，详细介绍了SIFT算法的实现-introduction to SIFT algorithm

计算几何入门,基础方法和应用,书中含有所有算法的伪代码,较为详细,对学习计算机几何有帮助。附件为3点方法确定多点最小包圆。-Introduction to computational geometry, basic method and application, the book contains all the pseudo code of the algorithm, a detailed, are helpful to study computer geometry。Attachment