Walking to singular points of fingerprints
نویسندگان
چکیده
منابع مشابه
Extraction of Singular Points from Directional Fields of Fingerprints
Biometric identification is an emerging subject in applications like high-security wireless access and secure transactions across computer networks. Fingerprints are easy to use and provide relatively good performance. Furthermore, fingerprint sensors are cheap and can be integrated easily in wireless hardware. In this paper, methods are presented for the estimation of a high resolution directi...
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In this paper, we define X-slant helix in Euclidean 3-space and we obtain helix, slant helix, clad and g-clad helix as special case of the X-slant helix. Then we study Darboux, tangential darboux developable surfaces and their singular points. Especially we show that the striction lines of these surfaces are singular locus of the surfaces.
متن کاملSystematic Methods for the Computation of the Directional Fields and Singular Points of Fingerprints
ÐThe first subject of this paper is the estimation of a high resolution directional field of fingerprints. Traditional methods are discussed and a new method, based on principal component analysis, is proposed. The method not only computes the direction in any pixel location, but its coherence as well. It is proven that this method provides exactly the same results as the aaveraged squaregradie...
متن کاملAnalysis of Singular Points in Fingerprints based on Topological Structure and Orientation Field
As an important feature of fingerprints, singular points ( core and delta) not only represent the local ridge pattern characteristics, but also determine the topological structure (i.e. fingerprint type) and largely influence the orientation field. In this paper, we have performed analysis for singular points in two aspects: (1) based on the topology theory in 2D manifold, we deduced the relati...
متن کاملAn Improved Method for Fingerprints’ Singular Points Detection based on Orientation Field Partition
As a global feature of fingerprints, singular point plays important roles in fingerprint model, synthesis fingerprint, fingerprint classification, fingerprint alignment and so on. In our previous work, a rapid and effective fingerprint singular points detection method was proposed. That method detects singular points based on partitioning the orientation field into a serious non-overlapping hom...
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ژورنال
عنوان ژورنال: Pattern Recognition
سال: 2016
ISSN: 0031-3203
DOI: 10.1016/j.patcog.2016.02.015