This algorithm requires not much apriori knowledge of the system parameters.
此算法不要求系统参数更多的先验知识。
It is simple in computation, requiring no apriori knowledge and predetermined parameters.
计算比较简单，不需要任何先验知识和预定的参数。
The algorithm led to a better result of registration for the use of the apriori knowledge.
这种新算法因为有变形场的先验知识，所以可以得到更好配准结果。
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