...人脸识别通常只是作为一个一般性的模式识别问题被研究，所采用的主要技术方案是基于人脸几何结构特征（Geometric feature based）的方法，这集中体现在人们对于剪影（Profile）的研究上，人们对面部剪影曲线的结构特征提取与分析方面进行了大量研究。
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Geometric model was extracted through ACIS, manufacturing feature was recognized reconstructed through establishment of manufacturing feature library and using of Rule-based method.
通过ACIS提取几何模型信息，建立制造特征库与采用基于规则的方法实现对制造特征的识别与重构。
Geometric constraint satisfaction is one of the kernel algorithms in feature based design system.
几何约束求解是基于特征设计系统的核心算法之一。
Traditional matching methods, only based on the geometric feature of fingerprints, are lacking in matching speed.
传统的仅基于指纹几何特征的匹配方法，在匹配速度方面有一定的欠缺。
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