说明：  文章描述了如何基于OpenCV在嵌入式平台上利用类Haar特征和Adaboost算法实现人脸检测，并讨论了如何在嵌入式平台上优化算法。
(The article describes how the class Haar features and the Adaboost algorithm embedded platform based on OpenCV face detection, and discussed how optimization algorithms on embedded platforms.)