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1.四川理工学院 自动化与信息工程学院, 四川 自贡 643000
2.电子科技大学 电子工程学院, 四川 成都 611731
[ "林国军(1979-), 浙江温岭人, 博士研究生, 讲师, 2014年于电子科技大学获得博士学位, 主要研究方向为图像处理、人脸检测和人脸识别。E-mail:386988463@qq.com" ]
[ "陈明举(1982-), 重庆大足人。硕士研究生, 副教授, 2007年于重庆邮电大学获得硕士学位, 主要研究方向为图像处理。E-mail: mailcmj@163.com" ]
收稿日期:2018-07-12,
录用日期:2018-10-29,
纸质出版日期:2019-02
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林国军, 杨明中, 陈明举, 等. 一种肤色定位的人脸检测算法[J]. 液晶与显示, 2019,34(1):70-73.
Guo-jun LIN, Ming-zhong YANG, Ming-ju CHEN, et al. Face detection algorithm based on skin color location[J]. Chinese journal of liquid crystals and displays, 2019, 34(1): 70-73.
林国军, 杨明中, 陈明举, 等. 一种肤色定位的人脸检测算法[J]. 液晶与显示, 2019,34(1):70-73. DOI: 10.3788/YJYXS20193401.0070.
Guo-jun LIN, Ming-zhong YANG, Ming-ju CHEN, et al. Face detection algorithm based on skin color location[J]. Chinese journal of liquid crystals and displays, 2019, 34(1): 70-73. DOI: 10.3788/YJYXS20193401.0070.
进行人脸识别前,首先要精确定位出一幅图像中人脸的位置,为了快速定位人脸位置,本文提出一种肤色定位的人脸检测算法。首先将实际获取的彩色图像转换为YCbCr和HSI空间图像,并将
Cb
和
Cr
图像中的数值进行四舍五入处理,结合
Cb
、
Cr
、
H
和
S
的阈值去除大部分背景,再统计当前图像中的彩色部分的
Cb
和
Cr
值,分别取最多2个数值来共同确定肤色位置,最后由当前位置的亮度信息图像排除手等纯肤色部分,准确定位人脸。本文算法能提高正检率并降低误检率,有利于人脸检测。
Face detection needs to locate the position of the face in an image before face recognition. In the paper
a face detection algorithm based on skin color location was presented for rapidly locating face position. Firstly
the actual obtained color images were converted into YCbCr and HSI space images. The numerical values of
Cb
and
Cr
image were rounded. A lot of spaces of background were eliminated with combining the thresholds of
Cb
Cr
H
and
S
. Secondly
the
Cb
and
Cr
values of the color part of the present image were counted
not more than two values of
Cb
and
Cr
were chosen respectively to jointly confirm skin color location. Finally
the luminance information image of the present location eliminated the pure skin color part such as hands to accurately locate face. The proposed algorithm can improve correct detection rate and reduce false detection rate to be beneficial to face detection.
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