Quaternion Based Information Parallel Fusion and Its Application in Color Face Detection

Pointing to dimension limit of serial feature fusion method, and quantity limit of parallel complex vector feature fusion method, an evolution of parallel vector feature fusion method based on quaternion has been proposed. The feasibility and the rationality of its application is proved in details theoretically. The feasibility of Fisher classification method in real domain and complex domain has been extended to quaternion space. Then the detail usage and process of the generalized Fisher method used in image classification has been given in this paper. Finally, the new algorithm is used in face detection and good result has been obtained