人臉識別是計算機視覺和模式識別領域的一個活躍課題,有著十分廣泛的應用前景。提出一種新的人臉識別方法,該算法采用K-L變換來提取最終特征值,采用了近鄰法設計分類器,這樣可以有效的避免了利用每一類的“代表點”設計分段線性分類器問題,減小了識別的錯誤率。在windows XP 平臺和MATLAB 7.0 軟件環境下,采用上述方法編制了人臉識別系統,仿真結果表明了該方法的有效性。
關鍵詞:人臉識別,特征提取,K-L變換,線性分類器
ABSTRACT
The face recognition is an active subject in fields of computer vision and pattern
recognition, which has a wide range of potential applications. In this paper, a method
face recognition is presented, this algorithm extracts the final features by utilizing the techniques of the simulative K-L transform. The near neighbor method based algorithm was utilized for classification, the problem and difficulty can be effectively avoided, which were faced when piecewise linear classifier was designed using each of the classes of "representative spots" piecewise, and the error rate of the recognition could be reduced. The face recognition system was developed and implemented on Microsoft Windows XP platform and Matlab 7.0 software environment using the above method. The effectiveness of the approach is experimentally demonstrated.
Keywords: Face recognition, Feature extraction, K-L transform, Liner classifer