关键词: 级联, 目标检测, 支持向量机（SVM）

Abstract: To detect objects quickly，a new method is presented to construct a cascade of SVM classifiers.The classifier which contains several weak linear SVM classifiers is simple to understand and is extremely efficient.The learning problem of every node in the cascade structure is described as a new quadratic programming problem in the framework of SVM，which makes every linear classifier achieve very high detection rate but only moderate false positive rate.The real experiments show that this method enjoys good generalization capacity and much fast speed compared with the traditional SVMs.

Key words: cascade, object detection, Support Vector Machine(SVM)