高级检索

眉毛外部特征的提取方法

External Feature Extraction of Eyebrows

  • 摘要: 为了研究眉毛的外部特征提取方法,将基于伪球的边缘检测算子与Li模型进行结合,通过水平集演化获取纯眉毛图像中的眉毛轮廓,在此基础上,计算眉毛的形状特征、方向特征和纹理特征,构建眉毛外部特征模型。实验结果表明:在相同的迭代次数下,对比Li模型,本文方法得到的眉毛轮廓更准确;针对自建的自然眉毛图像库(100人),眉毛外部特征模型的单眉毛识别率可达86.1%,与HMM和2DPCA结果相当,双眉毛识别率为90.2%,略有提高;针对没有浓淡区别的眉毛库,仅含形状和方向特征模型也能获得良好的效果,其识别率可达88.1%。

     

    Abstract: To study the external feature extraction method of eyebrows, the pseudo-sphere-based edge detector and Li's model are integrated, the eyebrow contour of the pure eyebrow image is obtained by level sets evolution, features of shape, direction and texture of the eyebrow are calculated, and the eyebrow external features model is built. Experimental results show that the eyebrow contour from the proposed method is more accurate than that from Li's model after the same iterations. To a self-built nature eyebrow images library (100 samples) and with external features model, the recognition rate of the single eyebrow can reach 86.1%, similar to those from HMM and 2DPCA, and 90.2% of the double eyebrows. Even to the eyebrows library, in which eyebrows have no difference in heavy-light, the model with only shape and direction features is also valid, and the recognition rate can reach 88.1%.

     

/

返回文章
返回