图像反投影重建算法，利用CT采集的数据在进行R_L_滤波后进行反投影得到检测图像。-Image reconstruction algorithm, using the projection of the data collected on CT after R_L_ filter back-projection get detection images.

基于树滤波的立体匹配方法 这篇论文对代价聚类进行详述，并且提出了一个非局部的解决办法-Stereo Matching Using Tree Filtering -In this paper, the cost aggregation problem is re-examined and a non-local solution is proposed.