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Issue:
New algorithm for normalization of the face image
Author(s):
JIN Wei
,
ZHANG Jianqi
,
LIANG Jianxia
,
WANG Jiaqiang
Pages:
61
-
65,111
Year:
2011
Issue:
2
Journal:
Journal of Xidian University(Natural Science)
Keyword:
归一化
;
人脸识别
;
嘴角定位
;
局部梯度算子
;
Abstract:
提出了一种基于改进的局部梯度算子进行嘴角定位、同时结合双眼位置进行人脸归一化的新方法.该方法首先通过Adaboost算法检测出人脸图像、眼睛和嘴部区域大致位置,然后采用灰度积分投影法精确定位两眼位置,并根据改进的局部梯度算子提取嘴部轮廓,最终依据两眼与嘴角的精确位置对人脸进行旋转和双向尺寸缩放处理.实验结果表明,该算法对特征点定位准确,能够更加精确地对人脸进行归一化处理.
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