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Real-time, accurate, and robust pupil detection is an essential prerequisite for pervasive video-based eye-tracking. However, automated pupil detection in real-world scenarios has proven to be an intricate challenge due to fast illumination…

Computer Vision and Pattern Recognition · Computer Science 2016-01-20 Wolfgang Fuhl , Thiago Santini , Gjergji Kasneci , Enkelejda Kasneci

Optical spectroscopy is indispensable for research and development in nanoscience and nanotechnology, microelectronics, energy, and advanced manufacturing. Advanced optical spectroscopy tools often require both specifically designed…

Optics · Physics 2022-10-12 Ziyang Wang , Yuxuan Cosmi Lin , Kunyan Zhang , Wenjing Wu , Shengxi Huang

Visual perimetry is an important eye examination that helps detect vision problems caused by ocular or neurological conditions. During the test, a patient's gaze is fixed at a specific location while light stimuli of varying intensities are…

Artificial Intelligence · Computer Science 2024-03-11 Tanvi Verma , Linh Le Dinh , Nicholas Tan , Xinxing Xu , Chingyu Cheng , Yong Liu

Fast and robust pupil detection is an essential prerequisite for video-based eye-tracking in real-world settings. Several algorithms for image-based pupil detection have been proposed, their applicability is mostly limited to laboratory…

Computer Vision and Pattern Recognition · Computer Science 2015-11-24 Wolfgang Fuhl , Thiago C. Santini , Thomas Kuebler , Enkelejda Kasneci

Real-time, accurate, and robust pupil detection is an essential prerequisite to enable pervasive eye-tracking and its applications -- e.g., gaze-based human computer interaction, health monitoring, foveated rendering, and advanced driver…

Computer Vision and Pattern Recognition · Computer Science 2018-04-30 Thiago Santini , Wolfgang Fuhl , Enkelejda Kasneci

Parsing of eye components (i.e. pupil, iris and sclera) is fundamental for eye tracking and gaze estimation for AR/VR products. Mainstream approaches tackle this problem as a multi-class segmentation task, providing only visible part of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Zhuang Jia , Jiangfan Deng , Liying Chi , Xiang Long , Daniel K. Du

This paper proposes a probabilistic deep metric learning (PDML) framework for hyperspectral image classification, which aims to predict the category of each pixel for an image captured by hyperspectral sensors. The core problem for…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Chengkun Wang , Wenzhao Zheng , Xian Sun , Jiwen Lu , Jie Zhou

Ellipse fitting, an essential component in pupil or iris tracking based video oculography, is performed on previously segmented eye parts generated using various computer vision techniques. Several factors, such as occlusions due to eyelid…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Rakshit S. Kothari , Aayush K. Chaudhary , Reynold J. Bailey , Jeff B. Pelz , Gabriel J. Diaz

In this paper we present a new approach for pupil segmentation. It can be computed and trained very efficiently, making it ideal for online use for high speed eye trackers as well as for energy saving pupil detection in mobile eye tracking.…

Image and Video Processing · Electrical Eng. & Systems 2021-02-04 Wolfgang Fuhl

Abnormalities in pupillary light reflex can indicate optic nerve disorders that may lead to permanent visual loss if not diagnosed in an early stage. In this study, we focus on relative afferent pupillary defect (RAPD), which is based on…

Computer Vision and Pattern Recognition · Computer Science 2019-08-08 Dogancan Temel , Melvin J. Mathew , Ghassan AlRegib , Yousuf M. Khalifa

In this paper, we introduce a portable eye imaging device denoted as lab-on-a-headset, which can automatically perform a swinging flashlight test. We utilized this device in a clinical study to obtain high-resolution recordings of eyes…

Image and Video Processing · Electrical Eng. & Systems 2019-05-23 Dogancan Temel , Melvin J. Mathew , Ghassan AlRegib , Yousuf M. Khalifa

Phase recovery (PR) refers to calculating the phase of the light field from its intensity measurements. As exemplified from quantitative phase imaging and coherent diffraction imaging to adaptive optics, PR is essential for reconstructing…

Eye tracking spreads through a vast area of applications from ophthalmology, assistive technologies to gaming and virtual reality. Precisely detecting the pupil's contour and center is the very first step in many of these tasks, hence needs…

Computer Vision and Pattern Recognition · Computer Science 2018-08-10 Cihan Topal , Halil Ibrahim Cakir , Cuneyt Akinlar

In this paper, we are interested in iris biometric applications. More precisely, our contribution consists in designing both a pupil detection and a tracking procedure from video sequences acquired by low-cost webcams. The novelty of our…

Image and Video Processing · Electrical Eng. & Systems 2020-02-27 Nedra Benletaief , Amel Benazza-Benyahia , Stephane Derrode

Vision-Language Pre-training (VLP) shows remarkable progress with the assistance of extremely heavy parameters, which challenges deployment in real applications. Knowledge distillation is well recognized as the essential procedure in model…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Huafeng Kuang , Jie Wu , Xiawu Zheng , Ming Li , Xuefeng Xiao , Rui Wang , Min Zheng , Rongrong Ji

As recent advances in mobile camera technology have enabled the capability to capture high-resolution images, such as 4K images, the demand for an efficient deblurring model handling large motion has increased. In this paper, we discover…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Insoo Kim , Jae Seok Choi , Geonseok Seo , Kinam Kwon , Jinwoo Shin , Hyong-Euk Lee

Despite the enhanced realism and immersion provided by VR headsets, users frequently encounter adverse effects such as digital eye strain (DES), dry eye, and potential long-term visual impairment due to excessive eye stimulation from VR…

Image and Video Processing · Electrical Eng. & Systems 2023-11-14 Yitong Sun , Zijian Zhou , Cyriel Diels , Ali Asadipour

Many learning algorithms such as kernel machines, nearest neighbors, clustering, or anomaly detection, are based on the concept of 'distance' or 'similarity'. Before similarities are used for training an actual machine learning model, we…

Video deblurring is a highly under-constrained problem due to the spatially and temporally varying blur. An intuitive approach for video deblurring includes two steps: a) detecting the blurry region in the current frame; b) utilizing the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Yusheng Wang , Yunfan Lu , Ye Gao , Lin Wang , Zhihang Zhong , Yinqiang Zheng , Atsushi Yamashita

Wearable pupil detection systems often separate the analysis of the captured wearer's eye images for wirelessly-tethered back-end systems. We argue in this paper that investigating hardware-software co-designs would bring along…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Ankur Raj , Diwas Bhattarai , Kristof Van Laerhoven
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