A Robust Illumination Normalization Method Based on Mean Estimation for Face Recognition
نویسندگان
چکیده
منابع مشابه
Illumination Normalization for Robust Face Recognition Against Varying Lighting Conditions
Evaluations of the state-of-the-art of both academic face recognition algorithms and commercial systems have shown that recognition performance of most current technologies degrades due to the variations of illumination. This paper investigates several illumination normalization methods and proposes some novel solutions. The main contribution of this paper includes: (1) A Gamma Intensity Correc...
متن کاملIllumination Normalization for Robust Face Recognition Using Discrete Wavelet Transform
In this paper, we introduce an illumination normalization approach within frequency domain by utilizing Discrete Wavelet Transform (DWT) as a transformation function in order to suppress illumination variations and simultaneously amplify facial feature such as eyeball, eyebrow, nose, and mouth. The basic ideas are: 1) transform a face image from spatial domain into frequency domain and then obt...
متن کاملIllumination Normalization Based on Homomorphic Wavelet Filtering for Face Recognition
The performance of face recognition techniques is greatly challenged by the pose, expression and illumination of the image. For most existing systems, the recognition rate will decrease due to changes in environmental illumination. In this paper, a Homomorphic Wavelet-based Illumination Normalization (HWIN) method is proposed. The purpose of this method is to normalize the uneven illumination o...
متن کاملAn efficient illumination normalization method for face recognition
In this paper, an efficient representation method insensitive to varying illumination is proposed for human face recognition. Theoretical analysis based on the human face model and the illumination model shows that the effects of varying lighting on a human face image can be modeled by a sequence of multiplicative and additive noises. Instead of computing these noises, which is very difficult f...
متن کاملIllumination Modeling and Normalization for Face Recognition
In this paper, we present a general framework for face modeling under varying lighting conditions. First, we show that a face lighting subspace can be constructed based on three or more training face images illuminated by non-coplanar lights. The lighting of any face image can be represented as a point in this subspace. Second, we show that the extreme rays, i.e. the boundary of an illumination...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ISRN Machine Vision
سال: 2013
ISSN: 2090-780X
DOI: 10.1155/2013/516052