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摘要
This paper addresses the face recognition problem through a modification of the Fuzzy Fisherface classification method. In conventional methods, the relationship of each face to a class is assumed to be crisp. The Fuzzy Fisherface method introduces a gradual level of assignment of each face pattern to a class, using a membership grading based up on the K-Nearest Neighbor(KNN) algorithm. This method was further modified by incorporating the membership grade of each face pattern in to the calculation of the between-class and within-class scatter matrices, termed as Complete Fuzzy LDA (CFLDA). The present work aims at improving the assignment of class membership by improving the parameters of the membership functions. A genetic algorithm is employed to optimize these parameters by searching the parameter space. Furthermore, the genetic algorithm is used to find the optimal number of nearest neighbors to be considered during the training phase. The experiments were performed on the Olivetti Research Laboratory(ORL) face image data base and the results show consistent improvement in the recognition rate when compared to the results from other techniques applied on the same data base and reported in literature.
- 出版日期2011-12
- 单位中国石油大学（北京）
