We introduce a novel discriminative feature space which is efficient not only for face detection but also for recognition. The face representation is based on local binary patterns (LBP) and consists of encoding both local and global facial characteristics into a compact feature histogram. The proposed representation is invariant with respect to monotonic gray scale transformations and can be derived in a single scan through the image. Considering the derived feature space, a second-degree polynomial kernel SVM classifier was trained to detect frontal faces in gray scale images. Experimental results using several complex images show that the proposed approach performs favorably compared to the state-of-the-art methods. Additionally, experiments with detecting and recognizing low-resolution faces from video sequences were carried out, demonstrating that the same facial representation can be efficiently used for both detection and recognition.


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    Title :

    A discriminative feature space for detecting and recognizing faces


    Contributors:
    Hadid, A. (author) / Pietikainen, M. (author) / Ahonen, T. (author)


    Publication date :

    2004-01-01


    Size :

    654044 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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