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Pupil Dynamics for Iris Liveness Detection
IEEE Transactions on Information Forensics and Security, 2015The primary objective of this paper is to propose a complete methodology for eye liveness detection based on pupil dynamics. This method may serve as a component of presentation attack detection in iris recognition systems, making them more secure.
Adam Czajka
exaly +2 more sources
Pupil detection schemes in human eye: a review
Multimedia Systems, 2021Pupil detection in a human eyeimage or video plays a key role in many applications such as eye-tracking, diabetic retinopathy screening, smart homes, iris recognition, etc. Literature reveals pupil detection faces many complications including light reflections, cataract disease, pupil constriction/dilation moments, contact lenses, eyebrows, eyelashes ...
Nasro Min-allah +2 more
exaly +2 more sources
Pupil detection in the presence of specular reflection
Proceedings of the Symposium on Eye Tracking Research and Applications, 2014In this work we describe a method of pupil detection for subsequent gaze tracking, when specular reflection is present in the image. Gaze tracking commonly uses the spatial relationship between the pupil and corneal reflection, but is not robust when the user is wearing eyeglasses, since light reflected from the surroundings changes the appearance of ...
Takahiro Yoshioka +4 more
openaire +1 more source
Pupil detection in hardware using FPGA
2012 IEEE 14th International Conference on e-Health Networking, Applications and Services (Healthcom), 2012This paper describes the design of a hardware based system to locate and measure the pupil size using FPGA. The system was implemented in a Cyclone 4E EP4CE115F29C7, from Altera. The component has 114,480 logic elements, although only 8% of the component was used.
Leandro Schwarz +3 more
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Pupil Detection Using Hybrid Vision Transformer
International Journal of Pattern Recognition and Artificial Intelligence, 2022Pupil detection is an indispensable part of the process of eye-tracking. Due of the limitation of existing methods on pupil image quality, we propose a pupil detection method using vision transformer with a hybrid structure. We first extract the local features of the image with CNN, and then obtain the global dependence through the encoder of the ...
Li Wang, Changyuan Wang, Yu Zhang
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The pupil dilation response to visual detection
SPIE Proceedings, 2008The pupil dilation reflex is mediated by inhibition of the parasympathetic Edinger-Westphal oculomotor complex and sympathetic activity. It has long been documented that emotional and sensory events elicit a pupillary reflex dilation. Is the pupil response a reliable marker of a visual detection event?
Claudio M. Privitera +4 more
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