Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Iurii Medvedev"'
Publikováno v:
IET Biometrics, Vol 11, Iss 5, Pp 498-511 (2022)
Abstract Face recognition has become one of the most important modalities of biometrics in recent years. It widely utilises deep learning computer vision tools and adopts large collections of unconstrained face images of celebrities for training. Suc
Externí odkaz:
https://doaj.org/article/ac8723a52b9e42f2b023b661d52e6ef4
Publikováno v:
IEEE Access, Vol 9, Pp 167282-167291 (2021)
Identity Documents (IDs) containing a facial portrait constitute a prominent form of personal identification. Photograph substitution in official documents (a genuine photo replaced by a non-genuine photo) or originally fraudulent documents with an a
Externí odkaz:
https://doaj.org/article/f98403bb186547a18e53958d014782c3
Publikováno v:
Applied Sciences, Vol 11, Iss 13, p 6134 (2021)
Various modern security systems follow a tendency to simplify the usage of the existing biometric recognition solutions and embed them into ubiquitous portable devices. In this work, we continue the investigation and development of our method for sec
Externí odkaz:
https://doaj.org/article/c592e4f291df42f4b606796f420b211b
Publikováno v:
Sensors, Vol 20, Iss 21, p 6304 (2020)
Smartphone-based optical spectrometers allow the development of a new generation of portable and cost-effective optical sensing solutions that can be easily integrated into sensor networks. However, most commonly the spectral calibration relies on th
Externí odkaz:
https://doaj.org/article/977f3348e6d34b0d9c95072779b29a7f
Autor:
Iurii Medvedev, Nuno Goncalves
Publikováno v:
2023 IEEE 17th International Conference on Automatic Face and Gesture Recognition (FG).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4ed74250aabaf521adc9cd559eb6b25
https://doi.org/10.1109/fg57933.2023.10042579
https://doi.org/10.1109/fg57933.2023.10042579
Publikováno v:
Journal of Lightwave Technology. 39:282-289
Smartphone-based interrogation of a fiber Bragg grating sensor is, to the best of our knowledge, reported for the first time. The smartphone flashlight LED was used as a light source and a transmissive diffraction grating projected the CFBG spectra o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d3c94bf429f155833b64b010053b1bd
https://doi.org/10.1109/jlt.2020.3024713
https://doi.org/10.1109/jlt.2020.3024713
Publikováno v:
BIOSIG
Modern face recognition biometrics widely rely on deep neural networks that are usually trained on large collections of wild face images of celebrities. This choice of the data is related with its public availability in a situation when existing ID d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa915880d23db0a4965bec3f556b7ed2
https://doi.org/10.1109/biosig52210.2021.9548309
https://doi.org/10.1109/biosig52210.2021.9548309
Publikováno v:
Applied Sciences
Volume 11
Issue 13
Applied Sciences, Vol 11, Iss 6134, p 6134 (2021)
Volume 11
Issue 13
Applied Sciences, Vol 11, Iss 6134, p 6134 (2021)
Various modern security systems follow a tendency to simplify the usage of the existing biometric recognition solutions and embed them into ubiquitous portable devices. In this work, we continue the investigation and development of our method for sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65893664a5fdc90ed51dfc2aabf79201
https://doi.org/10.3390/app11136134
https://doi.org/10.3390/app11136134
Autor:
Nuno G. B. Brás, Iurii Medvedev, António L. Topa, Abdelghafour Abraray, Stanislav I. Maslovski, Henrique Silva, Hugo R. L. Ferreira, Telmo Fernandes
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Conjugate impedance matched metamaterials are shown to be effective traps for electromagnetic waves. Objects made of such materials are able to receive radiation even when it is not directly incident on their surface. Here, we develop methods of phys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcd4e5586a1894350a04469bfe554499
https://hdl.handle.net/10400.8/3600
https://hdl.handle.net/10400.8/3600
Conjugate-impedance matched superabsorbers are metamaterial bodies whose effective absorption cross section greatly exceeds their physical dimension. Such objects are able to receive radiation when it is not directly incident on their surface. Here,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0f448bf17644982a016198240c38450