This algorithm can get rid of the trouble that chin contour is hardly extracted from the neck area,robustly extract face contour with high precision and satisfy the demand of face contour feature extraction.

• 该算法能够较好地提取人脸的轮廓线；克服了下巴边界难以从颈部区域提出的困难；定位精度高；边缘连续性好；满足了人脸轮廓特征提取的要求.