View Independent Face Detection Based on Combination of Local and Global Kernels

Abstract

In this paper, local and global kernels are combined to use the detailed and rough similarities simultaneously. In recent years, many recognition methods based on local features have been proposed. However, the combination of only lo- cal matching is not sufficient. Global viewpoint is also necessary to improve the generalization ability. In general, local feature matching measures the detailed sim- ilarity and global feature matching measures the rough similarity. Therefore, the error pattern is different in local and global features. If they are combined well, the generalization ability is improved. In the proposed method, local kernels and global kernel are combined by summation, and the combined kernel is used in SVM. The proposed method is applied to view independent face detection task. We confirm that the false positive is reduced by combining local and global kernels. The ef- fectiveness of the proposed method is demonstrated by the comparison with only global and local kernels.