Zobrazeno 1 - 10
of 32
pro vyhledávání: '"H. Fronthaler"'
Autor:
Fernando Alonso-Fernandez, Josef Bigun, Joaquin Gonzalez-Rodriguez, Javier Ortega-Garcia, K. Kollreider, Julian Fierrez, H. Fronthaler
Signal-quality awareness has been found to increase recognition rates and to support decisions in multisensor environments significantly. Nevertheless, automatic quality assessment is still an open issue. Here, we study the orientation tensor of fing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c19d986a4d4f1c5ff1159c1dfae549c0
http://arxiv.org/abs/2211.13557
http://arxiv.org/abs/2211.13557
Autor:
Josef Bigun, Javier Ortega-Garcia, K. Kollreider, Fernando Alonso-Fernandez, Julian Fierrez, Joaquin Gonzalez-Rodriguez, H. Fronthaler
One of the open issues in fingerprint verification is the lack of robustness against image-quality degradation. Poor-quality images result in spurious and missing features, thus degrading the performance of the overall system. Therefore, it is import
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f66d96969fd65e498a72db7d68f7ab11
Publikováno v:
Image and Vision Computing. 27:233-244
A technique evaluating liveness in face image sequences is presented. To ensure the actual presence of a live face in contrast to a photograph (playback attack), is a significant problem in face authentication to the extent that anti-spoofing measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77ea22b1ce0713058e36bd27cf3a9977
https://doi.org/10.1016/j.imavis.2007.05.004
https://doi.org/10.1016/j.imavis.2007.05.004
Publikováno v:
IEEE Transactions on Image Processing. 17:354-363
Accurate fingerprint recognition presupposes robust feature extraction which is often hampered by noisy input data. We suggest common techniques for both enhancement and minutiae extraction, employing symmetry features. For enhancement, a Laplacian-l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5658bcfd35e9f239f3c5b77d9471aaa9
https://doi.org/10.1109/tip.2007.916155
https://doi.org/10.1109/tip.2007.916155
Publikováno v:
IEEE Transactions on Information Forensics and Security. 2:548-558
A robust face detection technique along with mouth localization, processing every frame in real time (video rate), is presented. Moreover, it is exploited for motion analysis onsite to verify "liveness" as well as to achieve lip reading of digits. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dba57862f0f354424213eb8bad90ccf
https://doi.org/10.1109/tifs.2007.902037
https://doi.org/10.1109/tifs.2007.902037
Autor:
H. Fronthaler, Javier Ortega-Garcia, K. Kollreider, Fernando Alonso-Fernandez, Joaquin Gonzalez-Rodriguez, J. Fierrez-Aguilar, Josef Bigun
Publikováno v:
Scopus-Elsevier
Publons
Publons
We report on experiments for the fingerprint modality conducted during the First BioSecure Residential Workshop. Two reference systems for fingerprint verification have been tested together with two additional non-reference systems. These systems fol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdc41fd469ddd9c5ce9a199a0766896a
https://doi.org/10.1007/bf03253250
https://doi.org/10.1007/bf03253250
Publikováno v:
CVPR Workshops
Resisting spoofing attempts via photographs and video playbacks is a vital issue for the success of face biometrics. Yet, the ldquolivenessrdquo topic has only been partially studied in the past. In this paper we are suggesting a holistic liveness de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::becd0da0f9c577100fc4e11a51958804
https://doi.org/10.1109/cvprw.2008.4563115
https://doi.org/10.1109/cvprw.2008.4563115
Publikováno v:
Image Analysis ISBN: 9783540730392
SCIA
SCIA
A robust object/face detection technique processing every frame in real-time (video-rate) is presented. A methodological novelty are the suggested quantized angle features ("quangles"), being designed for illumination invariance without the need for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11f317b5d745458f869611bf0ba43a80
https://doi.org/10.1007/978-3-540-73040-8_5
https://doi.org/10.1007/978-3-540-73040-8_5
Publikováno v:
AutoID
Reliable feature extraction is crucial for accurate biometric recognition. Unfortunately feature extraction is hampered by noisy input data, especially so in case of fingerprints. We propose a method to enhance the quality of a given fingerprint with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7128c062c262c4b4abfadb2b9646954f
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2131
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2131
Publikováno v:
AutoID
A technique evaluating liveness in short face image sequences is presented The intended purpose of the proposed system is to assist in a biometric authentication framework, by adding liveness awareness in a non-intrusive manner. Analyzing the traject
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4d0f2fcb357ad63a83dfec6d36385ba
https://doi.org/10.1109/autoid.2005.20
https://doi.org/10.1109/autoid.2005.20