Thirdly, the feature point set is filtered by the rule and two-step curve fitting method is used to obtain the dental arch form.

然后基于规则筛选出关键特征点集，通过两步最小二乘法拟合牙弓线。

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Thirdly, the feature point set is filtered by the rule and two-step curve fitting method is used to obtain the dental arch form.

然后基于规则筛选出关键特征点集，通过两步最小二乘法拟合牙弓线。

youdao