三维锥束CT图像重建算法，利用Katsevich 算法。里面包含了两种分辩率的体数据。-Cone-Beam CT image reconstruction using the Katsevich Algorithm

螺旋轨迹重建的一种实现方法，是解析算法的典型案例-An implementation method of spiral trajectory reconstruction is an analytical algorithm

三维图像重建,采用多种滤波方法，实现三维图像重建，该算法效率比较高。目前已经应用到实际工程。-3-dim picture recreat,use filter method and project method to realise the recreating of 3 dim picture.it is a very effective method ,applied in the project.so I share it wit