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We describe an algorithm to enhance and binarize a fingerprint image. The algorithm is based on accurate determination of orientation flow of the ridges of the fingerprint image by computing variance of the neighborhood pixels around a…

计算机视觉与模式识别 · 计算机科学 2009-07-03 Simant Dube

The popular Biometric used to authenticate a person is Fingerprint which is unique and permanent throughout a person's life. A minutia matching is widely used for fingerprint recognition and can be classified as ridge ending and ridge…

密码学与安全 · 计算机科学 2010-01-26 Ravi. J , K. B. Raja , Venugopal. K. R

We propose a texture template approach, consisting of a set of virtual minutiae, to improve the overall latent fingerprint recognition accuracy. To compensate for the lack of sufficient number of minutiae in poor quality latent prints, we…

计算机视觉与模式识别 · 计算机科学 2018-04-30 Kai Cao , Anil K. Jain

Wi-Fi fingerprinting remains one of the most practical solutions for indoor positioning, however, its performance is often limited by the size and heterogeneity of fingerprint datasets, strong Received Signal Strength Indicator variability,…

机器学习 · 计算机科学 2026-01-12 Miguel Matey-Sanz , Joaquín Torres-Sospedra , Joaquín Huerta , Sergio Trilles

Digital fingerprinting is a framework for marking media files, such as images, music, or movies, with user-specific signatures to deter illegal distribution. Multiple users can collude to produce a forgery that can potentially overcome a…

信息论 · 计算机科学 2011-11-16 Dustin G. Mixon , Christopher J. Quinn , Negar Kiyavash , Matthew Fickus

Compared to contact fingerprint images, contactless fingerprint images exhibit four distinct characteristics: (1) they contain less noise; (2) they have fewer discontinuities in ridge patterns; (3) the ridge-valley pattern is less distinct;…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Mahrukh Siddiqui , Shahzaib Iqbal , Bandar AlShammari , Bandar Alhaqbani , Tariq M. Khan , Imran Razzak

Fingerprint classification is one of the most common approaches to accelerate the identification in large databases of fingerprints. Fingerprints are grouped into disjoint classes, so that an input fingerprint is compared only with those…

计算机视觉与模式识别 · 计算机科学 2017-05-16 Daniel Peralta , Isaac Triguero , Salvador García , Yvan Saeys , Jose M. Benitez , Francisco Herrera

The minutia descriptor which describes characteristics of minutia, plays a major role in fingerprint recognition. Typically, fingerprint recognition systems employ minutia descriptors to find potential correspondence between minutiae, and…

计算机视觉与模式识别 · 计算机科学 2018-09-11 Gwang-Il Ri , Mun-Chol Kim , Su-Rim Ji

Minutiae matching has long dominated the field of fingerprint recognition. However, deep networks can be used to extract fixed-length embeddings from fingerprints. To date, the few studies that have explored the use of CNN architectures to…

计算机视觉与模式识别 · 计算机科学 2022-10-27 Steven A. Grosz , Joshua J. Engelsma , Rajeev Ranjan , Naveen Ramakrishnan , Manoj Aggarwal , Gerard G. Medioni , Anil K. Jain

Computational molecular representations underpin virtual screening, property prediction, and materials discovery. Conventional fingerprints are efficient and deterministic but lose structural information through hash-based compression,…

机器学习 · 计算机科学 2026-05-01 Jonas Teufel , Luca Torresi , André Eberhard , Pascal Friederich

Fingerprint, as one of the most popular and robust biometric traits, can be used in automatic identification and verification systems to identify individuals. Fingerprint matching is a vital and challenging issue in fingerprint recognition…

计算机视觉与模式识别 · 计算机科学 2023-02-21 Nazanin Padkan , B. Sadeghi Bigham , Mohammad Reza Faraji

Minutiae play a major role in fingerprint identification. Extracting reliable minutiae is difficult for latent fingerprints which are usually of poor quality. As the limitation of traditional handcrafted features, a fully convolutional…

计算机视觉与模式识别 · 计算机科学 2017-09-08 Yao Tang , Fei Gao , Jufu Feng

The Karp-Rabin fingerprint of a string is a type of hash value that due to its strong properties has been used in many string algorithms. In this paper we show how to construct a data structure for a string $S$ of size $N$ compressed by a…

数据结构与算法 · 计算机科学 2013-05-17 Philip Bille , Patrick Hagge Cording , Inge Li Gørtz , Benjamin Sach , Hjalte Wedel Vildhøj , Søren Vind

Deep neural networks (DNNs) have shown incredible promise in learning fixed-length representations from fingerprints. Since the representation learning is often focused on capturing specific prior knowledge (e.g., minutiae), there is no…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Akash Godbole , Karthik Nandakumar , Anil K. Jain

Motivated by the increasing availability of low- and mixed-precision arithmetic on modern hardware, we develop mixed-precision variants of Lloyd's algorithm for k-means clustering. The main ingredient is a family of mixed-precision kernels…

数值分析 · 数学 2026-05-26 Erin Carson , Xinye Chen , Xiaobo Liu

Minutia-based palmprint recognition systems has got lots of interest in last two decades. Due to the large number of minutiae in a palmprint, approximately 1000 minutiae, the matching process is time consuming which makes it unpractical for…

计算机视觉与模式识别 · 计算机科学 2019-04-04 Mohsen Ahmadi , Hossein Soleimani

Wireless localization for mobile device has attracted more and more interests by increasing the demand for location based services. Fingerprint-based localization is promising, especially in non-Line-of-Sight (NLoS) or rich scattering…

信号处理 · 电气工程与系统科学 2019-07-02 Heng Zhang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao

Naturally, with the mounting application of biometric systems, there arises a difficulty in storing and handling those acquired biometric data. Fingerprint recognition has been recognized as one of the most mature and established technique…

计算机视觉与模式识别 · 计算机科学 2009-11-04 Vani Perumal , Jagannathan Ramaswamy

We consider the problem of encoding a set of vectors into a minimal number of bits while preserving information on their Euclidean geometry. We show that this task can be accomplished by applying a Johnson-Lindenstrauss embedding and…

信息论 · 计算机科学 2022-04-12 Sjoerd Dirksen , Alexander Stollenwerk

Dense registration of fingerprints is a challenging task due to elastic skin distortion, low image quality, and self-similarity of ridge pattern. To overcome the limitation of handcraft features, we propose to train an end-to-end network to…

计算机视觉与模式识别 · 计算机科学 2020-09-15 Zhe Cui , Jianjiang Feng , Jie Zhou