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환경에 강인한 얼굴인식을 위한 Bit Plane 기반의 적응 평활화 기법
이수영(Su-Young Lee),박석래(Seok-Lai Park),김중규(Joong-Kyu Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11
In this paper, we propose a new illumination normalization method for robust face recognition under different lighting conditions. Illumination variation is the most prominent extrinsic factor that makes it difficult to recognize the face. To minimize the effect caused by illumination variation, we first estimate the illumination by using adaptive smooth ing based on bit-plane and then normalize the estimated illumination by retinex algorithm. The proposed method is evaluated by measuring the recognition rates by using the Principal Component Analysis(PCA) algorithm.