Face recognition incorporating ancillary information

Authors:
Sang-Ki Kim;Kar-Ann Toh;Sangyoun Lee
Affiliations:
School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea;School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea;School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea
Venue:
EURASIP Journal on Advances in Signal Processing
Year:
2008

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Abstract

Due to vast variations of extrinsic and intrinsic imaging conditions, face recognition remained to be a challenging computer vision problem even today. This is particularly true when the passive imaging approach is considered for robust applications. To advance existing recognition systems for face, numerous techniques and methods have been proposed to overcome the almost inevitable performance degradation due to external factors such as pose, expression, occlusion, and illumination. In particular, the recent part-based method has provided noticeable room for verification performance improvement based on the localized features which have good tolerance to variation of external conditions. The part-based method, however, does not really stretch the performance without incorporation of global information from the holistic method. In view of the need to fuse the local information and the global information in an adaptive manner for reliable recognition, in this paper we investigate whether such external factors can be explicitly estimated and be used to boost the verification performance during fusion of the holistic and part-based methods. Our empirical evaluations show noticeable performance improvement adopting the proposed method.