Results 51 to 60 of about 407,598 (197)

Local intensity variation analysis for iris recognition [PDF]

Pattern Recognition, 2004
As all emerging biometric for human identification, iris recognition has received increasing attention in recent years. This paper makes an attempt to reflect shape information of the iris by analyzing local intensity variations of an iris image. In Our framework, a set of one-dimensional (1D) intensity signals is constructed to contain the most ...
Li Ma 0001, Tieniu Tan, Yunhong Wang 0001, Dexin Zhang   +3 more
openaire   +1 more source

Iris metastasis preceding diagnosis of gastric signet ring cell adenocarcinoma: a case report

BMC Ophthalmology, 2018
Background A case of iris metastasis preceding the diagnosis of gastric signet ring cell adenocarcinoma is very rare. To report the findings in a patient who presented with an iris tumor that was later identified to have metastasized from a gastric ...
Tadanobu Yoshikawa, Kimie Miyata, Tokiko Nakai, Chiho Ohbayashi, Miki Kaneko, Nahoko Ogata   +5 more
doaj   +1 more source

UNSWIRF: A Tunable Imaging Spectrometer for the Near-Infrared [PDF]

, 1998
We describe the specifications, characteristics, calibration, and analysis of data from the University of New South Wales Infrared Fabry-Perot (UNSWIRF) etalon.
Allen, Lori E., Ashley, Michael C. B., Burton, Michael G., Ryder, Stuart D., Storey, John W. V., Sun, Yin-Sheng   +5 more
core   +2 more sources

The correlation between uveal melanoma and iris nevus

Holistic Integrative Oncology
Purpose To investigate the impact of iris nevus on the incidence and prognosis of uveal melanoma (UM). Methods A retrospective cohort study was conducted involving 1128 UM cases and 4356 healthy controls. Participants were categorized based on iris nevus
Yuhang Yang, Jingting Luo, Zhaoxun Feng, Yang Li, Wenbin Wei, Yueming Liu   +5 more
doaj   +1 more source

Clinical Prediction of Inadequate Vault in Eyes With Thick Lens After Implantable Collamer Lens Implantation Using Iris Morphology

Frontiers in Medicine, 2022
BackgroundObtaining an ideal vault is crucial in the implantable collamer lens (ICL) surgery. Prediction of the vault value is difficult since it requires the integration of multiple factors.
Zhikun Yang, Lihui Meng, Lihui Meng, Xinyu Zhao, Xinyu Zhao, Youxin Chen, Youxin Chen, Yan Luo   +7 more
doaj   +1 more source

Pigment Melanin: Pattern for Iris Recognition

, 2009
Recognition of iris based on Visible Light (VL) imaging is a difficult problem because of the light reflection from the cornea. Nonetheless, pigment melanin provides a rich feature source in VL, unavailable in Near-Infrared (NIR) imaging.
Araabi, Babak N., Hosseini, Mahdi S., Soltanian-Zadeh, Hamid   +2 more
core   +1 more source

Design and implementation of a multi-modal biometric system for company access control [PDF]

, 2017
This paper is about the design, implementation, and deployment of a multi-modal biometric system to grant access to a company structure and to internal zones in the company itself. Face and iris have been chosen as biometric traits.
Ferrari, Carlo, Stefani, Elisabetta
core   +2 more sources

Iris pattern recognition based on cumulative sums and majority vote methods

International Journal of Advanced Robotic Systems, 2017
Iris recognition is proving to be one of the most reliable biometric authentication systems. Since biometric authentication systems store multiple templates per user, there is need to optimize their computational and storage complexities by creating a ...
Serestina Viriri, Jules Tapamo
doaj   +1 more source

Isoflavones and other compounds from the roots of Iris marsica I. Ricci E Colas. Collected from Majella National Park, Italy [PDF]

, 2017
In this study, a phytochemical analysis was performed, for the first time, on Iris marsica I. Ricci e Colas. In particular, the attention was focused on the constituents of the roots.
Bianco, A, Ciaschetti, G, Di Cecco, M, Frezza, C, Rai, Rimona, Sciubba, F, Serafini, M, Venditti, A   +7 more
core   +1 more source