Abstract: How to define and extract the feature of human face is a key and complicated problem. The edge and contour of human face is one of important feature. This paper studies the theory of edge detection and different kinds of arithmetical methods. The experiment results are used to confirm the different methods which are employed to test the edge detection results of the human face image. It discusses the consequence of detection when the threshold is varying and the possible factors, which makes the different results. Finally, it studies the application of the edge detection in human face detection and recognition.

Key words: Edge detection, Human face detection, Human face recognition

摘要： 如何确定人脸特征并对这些特征进行有效的提取是非常关键而且复杂的。人脸边缘和轮廓是人脸非常重要的特征。该文研究了边缘检测的原理和各种算法，通过试验验证各种检测方法在人脸图像中对边缘的检测效果，讨论选用在不同阈值下检测的边缘，以及影响检测效果的因素。最后通过实例研究了人脸边缘检测在人脸检测和识别中的具体应用。

关键词: 边缘检测, 人脸检测, 人脸识别

CLC Number: 

• TP242.6+2