Likelihood ratio in a SVM framework: Fusing linear and non-linear face classifiers
Mayank Vatsa,Richa Singh,Arun Ross,Afzel Noore +3 more
- pp 1-6
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TLDR
A fusion algorithm that incorporates the likelihood ratio test statistic in a support vector machine (SVM) framework in order to classify match scores originating from multiple matchers and is used to mitigate the effect of covariate factors in face recognition.Abstract:
The performance of score-level fusion algorithms is often affected by conflicting decisions generated by the constituent matchers/classifiers. This paper describes a fusion algorithm that incorporates the likelihood ratio test statistic in a support vector machine (SVM) framework in order to classify match scores originating from multiple matchers. The proposed approach also takes into account the precision and uncertainties of individual matchers. The resulting fusion algorithm is used to mitigate the effect of covariate factors in face recognition by combining the match scores of linear appearance-based face recognition algorithms with their non-linear counterparts. Experimental results on a heterogeneous face database of 910 subjects suggest that the proposed fusion algorithm can significantly improve the verification performance of a face recognition system. Thus, the contribution of this work is two-fold: (a) the design of a novel fusion technique that incorporates the likelihood ratio test-statistic in a SVM fusion framework; and (b) the application of the technique to face recognition in order to mitigate the effect of covariate factors.read more
Citations
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Journal ArticleDOI
Benchmarking Quality-Dependent and Cost-Sensitive Score-Level Multimodal Biometric Fusion Algorithms
Norman Poh,Thirimachos Bourlai,Josef Kittler,L. Allano,Fernando Alonso-Fernandez,Onkar Ambekar,John P. Baker,Bernadette Dorizzi,O. Fatukasi,Julian Fierrez,Harald Ganster,Javier Ortega-Garcia,Donald E. Maurer,Albert Ali Salah,Tobias Scheidat,Claus Vielhauer +15 more
TL;DR: This paper reports a benchmarking study carried out within the framework of the BioSecure DS2 (Access Control) evaluation campaign organized by the University of Surrey, involving face, fingerprint, and iris biometrics for person authentication, targeting the application of physical access control in a medium-size establishment with some 500 persons.
Journal ArticleDOI
SVM-based feature extraction for face recognition
TL;DR: This paper redesigns the between-class scatter matrix based on the SVM margins to facilitate an effective and reliable feature extraction and follows by a regularization of the within- class scatter matrix.
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Electroencephalogram-based decoding cognitive states using convolutional neural network and likelihood ratio based score fusion.
TL;DR: A novel algorithm is proposed to decode brain activity associated with different types of images by taking input data from multichannel EEG time-series, which is also known as multivariate pattern analysis.
Proceedings ArticleDOI
Quality-Based Fusion for Multichannel Iris Recognition
TL;DR: A quality-based fusion scheme for improving the recognition accuracy using color iris images characterized by three spectral channels - Red, Green and Blue which is employed to select two channels which are fused at the image level using a Redundant Discrete Wavelet Transform.
Book ChapterDOI
Context Switching Algorithm for Selective Multibiometric Fusion
TL;DR: A multimodal biometric fusion algorithm that supports biometric image quality and case-based context switching approach for selecting appropriate constituent unimodal traits and fusion algorithms is presented.
References
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Book
Testing statistical hypotheses
TL;DR: The general decision problem, the Probability Background, Uniformly Most Powerful Tests, Unbiasedness, Theory and First Applications, and UNbiasedness: Applications to Normal Distributions, Invariance, Linear Hypotheses as discussed by the authors.
Journal ArticleDOI
The FERET evaluation methodology for face-recognition algorithms
TL;DR: Two of the most critical requirements in support of producing reliable face-recognition systems are a large database of facial images and a testing procedure to evaluate systems.
Proceedings ArticleDOI
Fisher discriminant analysis with kernels
TL;DR: In this article, a non-linear classification technique based on Fisher's discriminant is proposed and the main ingredient is the kernel trick which allows the efficient computation of Fisher discriminant in feature space.
Proceedings Article
Support Vector Method for Function Approximation, Regression Estimation and Signal Processing
TL;DR: This presentation reports results of applying the Support Vector method to problems of estimating regressions, constructing multidimensional splines, and solving linear operator equations.