关键词: 手完整性检测, YCbCr色彩空间, Hu矩, 支持向量机

Abstract: In this paper，the hand completeness checking algorithm used in driver physical examination system is studied.Firstly，self-adaptive thresholding algorithm is used after that a RGB image is converted to the YCbCr color space.Then the hand area image is obtained by using the method of gray scale projection from the preprocessed image.Finally，extracted moment feature of the the hand image is used as the training sample data of SVM，and then the classifier is utilized in hand completeness recognition.The hand completeness checking algorithm has high precision.Testing results of the algorithm shows that the method is effecitve and it has been successfully used in the driver physical examination system.

Key words: hand completeness checking, YCbCr color space, Hu momoment, Support Vector Machine（SVM）