The Feature invariant approaches can detect the human faces fast, but only some kind of face can be detected.
基于特征不变量的方法，实现速度比较快，但都只适用于某一类图像。
The existing face detection methods can be classified into four categories: Knowledge-based methods, Feature invariant approaches, Template matching methods and Appearance-based methods.
现有的静止图像人脸检测算法主要有四类：基于知识的方法、基于特征不变量的方法、基于模板匹配的方法和基于表象的方法。
应用推荐