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The randomization by Wishart laws and the Fisher information

Autor: Letac, Gérard G.

Consider the centered Gaussian vector $X$ in $\R^n$ with covariance matrix $ \Sigma.$ Randomize $\Sigma$ such that $ \Sigma^{-1}$ has a Wishart distribution with shape parameter $p>(n-1)/2$ and mean $p\sigma.$ We compute the density $f_{p,\sigma}$ of

Externí odkaz: http://arxiv.org/abs/2211.14137

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Minutiae-Guided Fingerprint Embeddings via Vision Transformers

Autor: Grosz, Steven A., Engelsma, Joshua J., Ranjan, Rajeev, Ramakrishnan, Naveen, Aggarwal, Manoj, Medioni, Gerard G., Jain, Anil K.

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 extract su

Externí odkaz: http://arxiv.org/abs/2210.13994

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