Title :
Application and Evaluation of a 2D+3D Face Authentication System
Author :
Tsalakanidou, Filareti ; Malassiotis, Sotiris
Author_Institution :
Centre for Res. & Technol, Thessaloniki
Abstract :
An end-to-end face authentication system integrating both 2D color images and depth data is presented in this paper, based on a low-cost sensor capable of real-time acquisition of 3D images and associated color images. Depth data is used for robust face detection, localization and 3D pose estimation, as well as for compensating pose and illumination variations of facial images prior to classification. The proposed algorithms were implemented in a pilot security system for access control in real settings. Experimental results show that when normalized images, depicting upright orientation and frontal lighting, are used for authentication, significantly lower error rates are achieved. Moreover, the combination of color and depth data results in increased authentication accuracy, compared to the use of each modality alone.
Keywords :
access control; face recognition; image colour analysis; pose estimation; 2D color images; 3D image acquisition; 3D pose estimation; access control; face authentication system; face detection; pilot security system; Authentication; Classification algorithms; Color; Data security; Face detection; Image sensors; Lighting; Real time systems; Robustness; Sensor systems; Face authentication; anti-spoofing measures; color and depth images; pose and illumination compensation;
Conference_Titel :
3DTV Conference, 2007
Conference_Location :
Kos Island
Print_ISBN :
978-1-4244-0722-4
Electronic_ISBN :
978-1-4244-0722-4
DOI :
10.1109/3DTV.2007.4379473