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Auflistung nach Autor:in "Nikisins, Olegs"

1 - 2 von 2
  • Konferenzbeitrag
    Increasing the reliability of biometric verification by using 3D face information and palm vein patterns
    (BIOSIG 2010: Biometrics and Electronic Signatures. Proceedings of the Special Interest Group on Biometrics and Electronic Signatures, 2010) Nikisins, Olegs; Greitans, Modris; Fuksis, Rihards; Pudzs, Mihails; Serzane, Zanda
    The improvment of the reliability for biometric image-based identification systems is discussed in this paper. Accuracy rising of the verification process is based on two main principles: implementation of multidimensionality and advanced image acquisition. The multidimensionality principle is based on two factors: the system structure (multimodality of biometric system) and the acquired biometric data (visual and spatial information about the object). The advanced image acquisition is based on multi-view principle and photography that is sensitive in infrared spectrum.
  • Konferenzbeitrag
    Local binary patterns and neural network based technique for robust face detection and localization
    (BIOSIG 2012, 2012) Nikisins, Olegs; Greitans, Modris
    This paper proposes an adaptation of Local Binary Pattern (LBP) operator for the design of the precise face localization technique. Presented approach is divided into three main stages: face detection, detection of eye regions and localization of eye pupils. Introduced optimization principles and the discriminative power of the LBP significantly reduces the number of features used to describe the classes and simplifies the structure of the utilized classifier, namely, artificial neural network. The combination of the reduced dimensionality of the feature space and the presented histogram-based sliding window makes the proposed algorithm well applicable for the task of precise face localization in high resolution images. The parameters of the algorithms are evaluated on a color FERET database.