摘要
提出一种三维人脸姿态估计方法。该方法通过估计三维平面人脸模型到图像平面的单应矩阵来获得人脸相对于摄像机坐标系的旋转矩阵,并利用M-估计优化方法迭代求精。其主要特点是:实施简单,不需要对透视摄像机参数预先进行标定,能够在较大范围内较精确地估计人脸姿态。对模拟数据及真实人脸图像的实验均验证了该方法的有效性。
A method is proposed for 3D face pose estimation.The face pose are determined by estimating the homography matrix between the face model plane and the image plane.The M-estimator is employed to further refine the results.The main characteristic of the method is that it is simple to implement,does not need to calibrate the projective camera beforehand and can recover the face pose satisfactorily under a wide degree of head motion.Both simulation and real data results show it is effective.
出处
《计算机工程》
CAS
CSCD
北大核心
2011年第9期1-3,共3页
Computer Engineering
基金
国家自然科学基金资助项目(61005009
60973064)
北京市自然科学基金资助项目(4102039)
