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证件照片的特征提取与检索

, PP. 545-551

Keywords: 图像检索,肤色检测,特征提取,脸形

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Abstract:

研究描述人脸特征的有效方法,讨论身份证照片的特征提取和检索.采用自适应肤色检测技术改进通用的肤色检测算法,进行脸部区域的划分.提出DCT系数投影法对面部五官区域进行分割,在各区域中提取面部几何特征.引入描述脸颊和下颔轮廓的曲线参数作为脸形特征,得到对人脸特征更准确的描述.将面部几何特征矢量匹配、脸形曲线参数匹配和脸部图像相关匹配相结合,实现人像照片的准确检索.实验表明该方法性能优良.

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