Abstract
High information redundancy and strong correlations in face images result in inefficiencies when such images are used directly in recognition tasks. In this paper, discrete cosine transforms (DCT) are used to reduce image information redundancy because only a subset of the transform coefficients are necessary to preserve the most important facial features, such as hair outline, eyes and mouth. We demonstrate experimentally that when DCT coefficients are fed into a backpropagation neural network for classification, high recognition rates can be achieved using only a small proportion (0.19%) of available transform components. This makes DCT-based face recognition more than two orders of magnitude faster than other approaches.
Original language | English |
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Title of host publication | Procs of IEEE-INNS-ENNS Int Jt Conf on Neural Networks |
Subtitle of host publication | IJCNN 2000 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 149-154 |
Volume | 3 |
ISBN (Print) | 0-7695-0619-4 |
DOIs | |
Publication status | Published - 2000 |
Event | IEEE-INNS-ENNS Int Joint Conf on Neural Networks - Como, Italy Duration: 24 Jul 2000 → 27 Jul 2000 |
Conference
Conference | IEEE-INNS-ENNS Int Joint Conf on Neural Networks |
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Country/Territory | Italy |
City | Como |
Period | 24/07/00 → 27/07/00 |
Keywords
- backpropagation
- face recognition