A New Implementation for High Speed Normalized Neural Networks in Frequency Space

  • Authors:
  • Hazem M. El-Bakry;Mohamed Hamada

  • Affiliations:
  • Faculty of Computer Science & Information Systems, Mansoura University, EGYPT;University of Aizu, Aizu Wakamatsu, Japan

  • Venue:
  • KES '08 Proceedings of the 12th international conference on Knowledge-Based Intelligent Information and Engineering Systems, Part I
  • Year:
  • 2008

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Abstract

Neural networks have shown good results for detection of a certain pattern in a given image. In our previous work, a fast algorithm for object/face detection was presented. Such algorithm was designed based on cross correlation in the frequency domain between the input image and the weights of neural networks. In this paper, a simple design for solving the problem of local subimage normalization in the frequency domain is presented. This is done by normalizing the weights in the spatial domain off line. Furthermore, it is proved that local subimage normalization by normalizing the weights is faster than subimage normalization in the spatial domain. Moreover, the overall speed up ratio of the detection process is increased as the normalization of weights is done off line.