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This paper compares the pupillary activity index to traditional eye-tracking metrics like the fixation count and duration in assessing neonatal pain. It explores the benefits of incorporating pupillary activity measures to improve methods…

信号处理 · 电气工程与系统科学 2023-09-21 Roberto Magalhaes , Rafael Orsi , Marina Barros , Ruth Guinsburg , Carlos E Thomaz

Holographic displays promise to deliver unprecedented display capabilities in augmented reality applications, featuring a wide field of view, wide color gamut, spatial resolution, and depth cues all in a compact form factor. While emerging…

We present a simple, real-time approach for pupil tracking from live video on mobile devices. Our method extends a state-of-the-art face mesh detector with two new components: a tiny neural network that predicts positions of the pupils in…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Artsiom Ablavatski , Andrey Vakunov , Ivan Grishchenko , Karthik Raveendran , Matsvei Zhdanovich

In this paper, we present a computer vision-based approach to measure the sizes and growth rates of apple fruitlets. Measuring the growth rates of apple fruitlets is important because it allows apple growers to determine when to apply…

Beneficial daily activity interventions have been shown to improve both the physical and mental health of older adults. However, there is a lack of robust objective metrics and personalized strategies to measure their impact. In this study,…

Today's diagnostics include devices such as pulse oximeters, blood pressure monitors, and temperature measurements. These devices provide vital information to medical personnel when making treatment decisions. Drawing inspiration from the…

图像与视频处理 · 电气工程与系统科学 2022-08-26 Akhil Kallepalli , David B James , Mark A Richardson

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…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Rakshit S. Kothari , Aayush K. Chaudhary , Reynold J. Bailey , Jeff B. Pelz , Gabriel J. Diaz

The time people spend in front of computers has been increasing steadily due to the role computers play in modern society. Individuals who sit in front of computers for an extended period of time, specifically with improper postures may…

计算机视觉与模式识别 · 计算机科学 2015-04-30 Qi Guo , Zixuan Wang , Ming Li , Hamid Aghajan

Active non-line-of-sight imaging systems are of growing interest for diverse applications. The most commonly proposed approaches to date rely on exploiting time-resolved measurements, i.e., measuring the time it takes for short light pulses…

图像与视频处理 · 电气工程与系统科学 2017-11-20 Christos Thrampoulidis , Gal Shulkind , Feihu Xu , William T. Freeman , Jeffrey H. Shapiro , Antonio Torralba , Franco N. C. Wong , Gregory W. Wornell

The widespread deployment of surveillance cameras for facial recognition gives rise to many privacy concerns. This study proposes a privacy-friendly alternative to large scale facial recognition. While there are multiple techniques to…

计算机视觉与模式识别 · 计算机科学 2021-01-28 Mattijs Baert , Sam Leroux , Pieter Simoens

A minimalist vision system uses the smallest number of pixels needed to solve a vision task. While traditional cameras use a large grid of square pixels, a minimalist camera uses freeform pixels that can take on arbitrary shapes to increase…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Jeremy Klotz , Shree K. Nayar

Biometrics is the science of identifying an individual based on their intrinsic anatomical or behavioural characteristics, such as fingerprints, face, iris, gait, and voice. Iris recognition is one of the most successful methods because it…

计算机视觉与模式识别 · 计算机科学 2022-12-27 Daniel P. Benalcazar , David A. Benalcazar , Andres Valenzuela

Video-based glint-free eye tracking commonly estimates gaze direction based on the pupil center. The boundary of the pupil is fitted with an ellipse and the euclidean center of the ellipse in the image is taken as the center of the pupil.…

计算机视觉与模式识别 · 计算机科学 2019-02-13 Xi Wang , Albert Chern , Marc Alexa

Facial motion tracking in head-mounted displays (HMD) has the potential to enable immersive "face-to-face" interaction in a virtual environment. However, current works on facial tracking are not suitable for unobtrusive augmented reality…

人机交互 · 计算机科学 2023-08-16 Yinan Xuan , Varun Viswanath , Sunny Chu , Owen Bartolf , Jessica Echterhoff , Edward Wang

Interest in pupil-remapping interferometry, in which a single telescope pupil is fragmented and recombined using fiber optic technologies, has been growing among a number of groups. As a logical extrapolation from several highly successful…

Recent developments in hardware, computer graphics, and AI may soon enable AR/VR head-mounted displays (HMDs) to become everyday devices like smartphones and tablets. Eye trackers within HMDs provide a special opportunity for such setups as…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Mengdi Wang , Efe Bozkir , Enkelejda Kasneci

Eye movements play a vital role in perceiving the world. Eye gaze can give a direct indication of the users point of attention, which can be useful in improving human-computer interaction. Gaze estimation in a non-intrusive manner can make…

计算机视觉与模式识别 · 计算机科学 2019-07-11 Anjith George

Finding the eye and parsing out the parts (e.g. pupil and iris) is a key prerequisite for image-based eye tracking, which has become an indispensable module in today's head-mounted VR/AR devices. However, a typical route for training a…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Jiangfan Deng , Zhuang Jia , Zhaoxue Wang , Xiang Long , Daniel K. Du

Iris recognition is a mature biometric technology offering remarkable precision and speed, and allowing for large-scale deployments to populations exceeding a billion enrolled users (e.g., AADHAAR in India). However, in forensic…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Mahsa Mitcheff , Adam Czajka

Laser interferometry (LFI)-based eye-tracking systems provide an alternative to traditional camera-based solutions, offering improved privacy by eliminating the risk of direct visual identification. However, the high-frequency signals…

人机交互 · 计算机科学 2025-05-13 Suleyman Ozdel , Johannes Meyer , Yasmeen Abdrabou , Enkelejda Kasneci