For the traditional point-by-point matching algorithm takes exponential complexity, it's difficult to be used directly.
传统的点点匹配算法具有指数级的复杂度，很难直接用于纹理匹配。
The bit - operation complexity of the fast exponential algorithm is polynomial.
快速指数算法的比特运算复杂度是多项式的。
The bit - operation complexity of the fast exponential algorithm is polynomial.
快速指数算法的比特运算复杂度是多项式的。
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