Without complex 3D reconstruction processes, the implementation of the pointing system is based on image analysis, homography, and 3D geometry. 此系統避開以往複雜的三維重建方式，改以影像分析技術，平面投影轉換及三維幾何等數學理論，作為系統實作的基礎。
The image processing steps and methods of image analysis for the 3-D positioning processes used in this thesis will be introduced in the fallowing chapters. 在接下來的章節中將會介紹本論文中三維定位過程里用到的影像處理步驟以及影像分析的方法。
