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Jamal Ahmad Dargham
Universiti Malaysia Sabah
Malaysia
Ali Chekima
Universiti Malaysia Sabah
Malaysia
Ervin Gubin Moung
Universiti Malaysia Sabah
Malaysia
Sigeru Omatu
Osaka Institute of Technology
Japan
Vol. 3 No. 4 (2014), Articles, pages 58-66
DOI: https://doi.org/10.14201/ADCAIJ2014345866
Accepted: Oct 5, 2015
Copyright

Abstract

Face recognition is an important biometric method because of its potential applications in many fields, such as access control and surveillance. In surveillance applications, the distance between the subject and the camera is changing. Thus, in this paper, the effect of the distance between the subject and the camera, distance class, the effect of the number of images per class, and also the effect of session used to acquire the images have been investigated. Three sessions are used to acquire the images in the database. The images in each session were equally divided into three distance classes: CLOSE, MEDIUM, and FAR, according to the distance of the subject from the camera. It was found that using images from the MEDIUM class for training gives better performance than using either the FAR or the CLOSE class. In addition, it was also found that using one image from each class for training gives the same recognition performance as using three images from the MEDIUM class for training. It was also found that as the number of images per class increases, the recognition performance also increases. Lastly, it was found that by using one image per class from all the available database sessions gives the best recognition performance.

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