文献类型：期刊文献

中文题名：基于肤色学习的多人脸前景抽取方法

英文题名：Multi-face foreground extraction method based on skin color learning

作者：戴嫣然[1];戴国庆[1];袁玉波[1,2]

机构：[1]华东理工大学信息科学与工程学院,上海200237;[2]上海大数据与互联网受众工程技术研究中心,上海200072

年份：2021

卷号：41

期号：6

起止页码：1659

中文期刊名：计算机应用

外文期刊名：journal of Computer Applications

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：上海市工程技术中心项目(18DZ2252300)。

语种：中文

中文关键词：人脸前景;肤色学习;聚类分析;人脸范围;遗传机制

外文关键词：face foreground;skin color learning;clustering analysis;face range;genetic mechanism

摘要：针对多人脸场景下快速准确提取人脸内容的问题,提出了基于肤色学习的多人脸前景抽取方法。首先,给出了基于肤色学习的肤色前景分割模型。根据肤色专家的论文结果,采集了著名的SPA数据库的1 200张人脸进行肤色抽样,建立学习模型以得到每个人种在颜色空间的肤色参数,据此进行肤色图像分割,得到肤色前景。其次,利用人脸特征点学习算法,以常见人脸68个特征点为目标,结合肤色前景信息分割出人脸种子区域;并计算人脸中心点,来构建人脸椭圆边界模型以及确定遗传范围。最后,建立了有效抽取算法,在人脸椭圆边界内利用遗传机制进行人脸再生,从而抽取得到有效人脸区域。以三类不同数据库为基础,收集了100张有代表性的多人脸图像,实验结果表明所提方法对这些图像的多人脸抽取的结果准确率达到98.4%以上,且该方法对中密度人群的人脸内容抽取有显著效果,并为人脸识别算法的准确性和可用性提供了基础。
To solve the problem of quickly and accurately extracting face content in multi-face scenes,a multi-face foreground extraction method based on skin color learning was proposed.Firstly,a skin color foreground segmentation model based on skin color learning was given.According to the results of the papers of skin color experts,1200 faces of the famous SPA database were collected for skin color sampling.The learning model was established to obtain the skin color parameters of each race in the color space.The skin color image was segmented according to the parameters to obtain the skin color foreground.Secondly,the face seed area was segmented by using face feature point learning algorithm and skin color foreground information and with 68 common feature points of the face as the target.And the centers of the faces were calculated to construct the elliptical boundary model of the faces and determine the genetic range.Finally,an effective extraction algorithm was established,and the genetic mechanism was used within the elliptical boundaries of the faces to regenerate the faces,so that the effective face areas were extracted.Based on three different databases,100 representative multi-face images were collected.Experimental results show that the accuracy of the multi-face extraction results of the proposed method is up to 98.4%,and the proposed method has a significant effect on the face content extraction of medium-density crowds as well as provides a basis for the accuracy and usability of the face recognition algorithm.