首先给出了用于代数不变量的“参照系”和“坐标”的概念，然后给出了一个基于代数不变量进行目标识别的算法，最后给出了算法的实验结果。

Invariants can be divided into algebraic invariants and deferential invariants. This thesis gives out an algorithm to recognize objects based on algebraic invariants. It has two parts: principle and algorithm. In the principle part, the concept of‘bases’and‘coordinate’is given under recognition using algebraic invariants. The algorithm part includes‘training’and ‘recognition’. At last the thesis gives out the experimental results of this algorithm.