计算机系统应用
計算機繫統應用
계산궤계통응용
APPLICATIONS OF THE COMPUTER SYSTEMS
2010年
2期
67-70
,共4页
Harris算子%关键特征点%相对坐标%姿态估计%轮廓模型
Harris算子%關鍵特徵點%相對坐標%姿態估計%輪廓模型
Harris산자%관건특정점%상대좌표%자태고계%륜곽모형
Harris operator%key feature point%relative coordinate%pose estimation%shape model
用Harris算子提取被测人脸上受表情影响较小的几个关键特征点,由这些特征点的相对座标位置与正面人脸模型中对应点的相对座标位置之间的转化关系估计出被测人脸的姿态向量,用此姿态向量与提取的点建立一个综合人脸轮廓模型.由于所提取的特征点受人脸表情变化影响很小,在模型中又正确估计了人脸姿态,因此,此模型可以很好地抑制人脸表情和姿态变化的影响,适合于作为识别人脸的依据.
用Harris算子提取被測人臉上受錶情影響較小的幾箇關鍵特徵點,由這些特徵點的相對座標位置與正麵人臉模型中對應點的相對座標位置之間的轉化關繫估計齣被測人臉的姿態嚮量,用此姿態嚮量與提取的點建立一箇綜閤人臉輪廓模型.由于所提取的特徵點受人臉錶情變化影響很小,在模型中又正確估計瞭人臉姿態,因此,此模型可以很好地抑製人臉錶情和姿態變化的影響,適閤于作為識彆人臉的依據.
용Harris산자제취피측인검상수표정영향교소적궤개관건특정점,유저사특정점적상대좌표위치여정면인검모형중대응점적상대좌표위치지간적전화관계고계출피측인검적자태향량,용차자태향량여제취적점건립일개종합인검륜곽모형.유우소제취적특정점수인검표정변화영향흔소,재모형중우정학고계료인검자태,인차,차모형가이흔호지억제인검표정화자태변화적영향,괄합우작위식별인검적의거.
Firstly, the key feature points which have much less reaction under changing appearances are captured from a tested face. Then the transforming vectors between the relative coordinates of the captured points and each corresponding point in the face model are used to estimate the pose of the tested face. At last a synthetical face shape model is established by using the captured points and the estimated pose vector. The shape model would be robust under changing appearances and poses because the points in the model are unchangeable under different appearances. In addition. this paper estimates the pose of the tested face correcdy. The shape model will be fit for face recognition.
