Face Recognition under Varying Lighting Conditions Using Self Quotient Image

In this paper, we introduce the concept of SelfQuotient Image (SQI) for robust face recognition under varying lighting conditions. It is based on the Quotient Image method [4][5] to achieve lighting invariant. However, the SQI has three advantages: (1) It needs only one face image for extraction of intrinsic lighting invariant property of a face while removing extrinsic factor corresponding to the lighting. (2)No alignment is needed. (3) It works in shadow regions. The theoretical analysis on conditions where the algorithm is applicable and a non-iterative filtering algorithm for computing SQI are presented. Experiment results demonstrate the effectiveness of our method for robust face recognition under varying lighting conditions.

• Type: Conference
• Year: 2004
• Where: FGR
• Authors: Haitao Wang, Stan Z. Li, Yangsheng Wang
• Keywords: Biometrics, FGR 2004, Lighting Conditions, Lighting Invariant, Robust Face Recognition