We define a cell as a cubical region with voxels on all of its eight corners and no voxels inside.The main method of the light weight space leaping technique is using the coherence of detector rays.

• 轻度空间跳跃加速技术的主要思想是利用探测光的相关性，把一个单元定义为一个立方区域，八个角点上有体元，内部没有体元。