Results 51 to 60 of about 301,445 (291)

Periocular Biometrics: A Modality for Unconstrained Scenarios [PDF]

arXiv, 2022
Periocular refers to the externally visible region of the face that surrounds the eye socket. This feature-rich area can provide accurate identification in unconstrained or uncooperative scenarios, where the iris or face modalities may not offer sufficient biometric cues due to factors such as partial occlusion or high subject-to-camera distance.
arxiv  

The Effect of Ocular Melanin Density on Human Vision

Biomedical and Clinical Research, 2022
Background: Without discussing the effect of ocular melanin density on vision, let us make the logical assumption that since melanin is a protective factor for the eye, its lower density causes more sunlight to damage vision cells. The question is not how the melanin density of the eye affects vision, but how the melanin density of the eye affects ...
openaire   +1 more source

Concepts for a Semantically Accessible Materials Data Space: Overview over Specific Implementations in Materials Science

Advanced Engineering Materials, EarlyView.
This manuscript presents advances in digital transformation within materials science and engineering, emphasizing the role of the MaterialDigital Initiative. By testing and applying concepts such as ontologies, knowledge graphs, and integrated workflows, it promotes semantic interoperability and data‐driven innovation. The article reviews collaborative
Bernd Bayerlein, Jörg Waitelonis, Henk Birkholz, Matthias Jung, Markus Schilling, Philipp v. Hartrott, Marian Bruns, Jörg Schaarschmidt, Kristian Beilke, Marcel Mutz, Vincent Nebel, Veit Königer, Lisa Beran, Tobias Kraus, Akhilesh Vyas, Lars Vogt, Moritz Blum, Basil Ell, Ya‐Fan Chen, Tina Waurischk, Akhil Thomas, Ali Riza Durmaz, Sahar Ben Hassine, Carina Fresemann, Gordian Dziwis, Hossein Beygi Nasrabadi, Thomas Hanke, Melissa Telong, Stephan Pirskawetz, Mohamed Kamal, Thomas Bjarsch, Ursula Pähler, Peter Hofmann, Mena Leemhuis, Özgür L. Özçep, Lars‐Peter Meyer, Birgit Skrotzki, Jörg Neugebauer, Wolfgang Wenzel, Harald Sack, Chris Eberl, Pedro Dolabella Portella, Tilmann Hickel, Lutz Mädler, Peter Gumbsch   +44 more
wiley   +1 more source

Machine learning methods to identify risk factors for corneal graft rejection in keratoconus

Scientific Reports
Machine learning can be used to identify risk factors associated with graft rejection after corneal transplantation for keratoconus. The study included all keratoconus eyes that underwent primary corneal transplantation from 1994 to 2021.
Sepehr Feizi, Mohammad Ali Javadi, Kia Bayat, Mohammadreza Arzaghi, Amir Rahdar, Mohammad Javad Ahmadi   +5 more
doaj   +1 more source

A pinhole implant to correct postoperative residual refractive error in an RK cataract patient

American Journal of Ophthalmology Case Reports, 2020
Purpose: To report the clinical outcomes after implantation of a pinhole supplementary implant (Xtrafocus, Morcher GmbH, Stuttgart, Germany) to correct fluctuating residual refraction after cataract surgery in a patient with a history of radial ...
Hyeck-Soo Son, Ramin Khoramnia, Christian Mayer, Grzegorz Labuz, Timur M. Yildirim, Gerd U. Auffarth   +5 more
doaj  

A Survey on Orbital Space-Occupying Lesions during a Twelve-Year Period from a Referral Center in Iran

Journal of Ophthalmic & Vision Research, 2023
Purpose: In this study, we describe different orbital space-occupying lesions (SOLs) from a referral center in Iran. Methods: In this retrospective case series, all records of “orbital tumors” with a definite histopathologic diagnosis at a referral ...
Abbas Bagheri, Parisa Ashtar-nakhaie, Maryam Aletaha, Bahareh Kheiri, Amirreza Veisi   +4 more
doaj   +1 more source

Ocular problems of computer vision syndrome: Review

Journal of Mahatma Gandhi Institute of Medical Sciences, 2015
Nowadays, ophthalmologists are facing a new group of patients having eye problems related to prolonged and excessive computer use. When the demand for near work exceeds the normal ability of the eye to perform the job comfortably, one develops discomfort and prolonged exposure, which leads to a cascade of reactions that can be put together as computer ...
Siddharam S. Janti, Metheen Adnan, Charanya Chendilnathan, Ayakutty Muni Raja   +3 more
openaire   +3 more sources

Smart Rubber Extrusion Line Combining Multiple Sensor Techniques for AI‐Based Process Control

Advanced Engineering Materials, EarlyView.
This publication presents a digitalization approach for a laboratory rubber extrusion line, employing innovative measurement methods and artificial intelligence (AI)‐based process control. The results demonstrate that the measurement systems are capable of detecting changes in the process and extrudate quality.
Alexander Aschemann, Paul‐Felix Hagen, Simon Albers, Robin Rofallski, Sven Schwabe, Mohammed Dagher, Marco Lukas, Sebastian Leineweber, Benjamin Klie, Patrick Schneider, Hagen Bossemeyer, Lennart Hinz, Markus Kästner, Birger Reitz, Eduard Reithmeier, Thomas Luhmann, Hainer Wackerbarth, Ludger Overmeyer, Ulrich Giese   +18 more
wiley   +1 more source

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source

Impact of Indocyanine Green Concentration, Exposure Time, and Degree of Dissolution in Creating Toxic Anterior Segment Syndrome: Evaluation in a Rabbit Model

Journal of Ophthalmology, 2016
Purpose. To investigate the role of indocyanine green (ICG) dye as a causative material of toxic anterior segment syndrome (TASS) in an experimental rabbit model. Method. Eight eyes of four rabbits were allocated to this study.
Tamer Tandogan, Ramin Khoramnia, Gerd Uwe Auffarth, Michael Janusz Koss, Chul Young Choi   +4 more
doaj   +1 more source