Filters








13 Hits in 5.8 sec

Evaluation of VDT-Induced Visual Fatigue by Automatic Detection of Blink Features

Zhijie Yin, Bing Liu, Dongmei Hao, Lin Yang, Yongkang Feng
2022 Sensors  
This study evaluates the progression of visual fatigue induced by visual display terminal (VDT) using automatically detected blink features.  ...  The blink features automatically detected in this study can be used to evaluate the progression of visual fatigue.  ...  Conflicts of Interest: The authors declare no conflict of interest. Sensors 2022, 22, 916  ... 
doi:10.3390/s22030916 pmid:35161662 pmcid:PMC8838989 fatcat:sm5fbdiyrjblvnisgva7irdeeq

Assessment of eye fatigue caused by head-mounted displays using eye-tracking

Yan Wang, Guangtao Zhai, Sichao Chen, Xiongkuo Min, Zhongpai Gao, Xuefei Song
2019 BioMedical Engineering OnLine  
However, in addition to visually induced motion sickness (VIMS), eye fatigue has increasingly emerged during and after the viewing experience, highlighting the necessity of quantitatively assessment of  ...  We implemented three classifications and two regressions to investigate different feature sets, which led to present two valid assessment models for eye fatigue by employing blinking features and eye movement  ...  ZG, XM, and XS presented some suggestions for improving the scientific level of the manuscript. All authors read and approved the final manuscript.  ... 
doi:10.1186/s12938-019-0731-5 pmid:31729983 pmcid:PMC6858717 fatcat:gh4h3v5bd5a6jlugt4q3twusdm

Classification of eye movement and its application in driving based on a refined preprocessing and machine learning algorithm

Xian-sheng Li, Zhi-zhen Fan, Yuan-yuan Ren, Xue-lian Zheng, Ran Yang
2021 IEEE Access  
The eyes are the first channel used by humans to obtain various types of visual information from the outside world, especially for driver, 80-90% of information is received through eyes in driving.  ...  On the other hand, the average estimated error of time-to-collision used by smooth pursuit is 7.37%.  ...  .  Fatigue and distraction state monitoring in driving, such as frequency of blink, Perclos, fixation direction etc.  ... 
doi:10.1109/access.2021.3115961 fatcat:k6gnc5hin5a7lnnhxr6oj3ro5e

Human scalp EEG processing: Various soft computing approaches

Kaushik Majumdar
2011 Applied Soft Computing  
Wherever possible results of comparative studies among various techniques have been presented. Analyses of EEG for various feature extraction are exceedingly challenging pattern recognition tasks.  ...  In this survey we have identified certain soft computing techniques (by soft computing techniques we mean computational techniques that take into account the inherent uncertainties in the data and/or in  ...  Acknowledgments The author likes to thank the library of the Florida Atlantic University, Boca Raton, Florida for allowing online access to their electronic archive as a former staff without, which it  ... 
doi:10.1016/j.asoc.2011.07.004 fatcat:rx5z7z4jhzhmflog7q733ugdoy

Abstracts for Poster Sessions

Not Available Not Available
2002 Journal of Neurology  
The DNA MS bank is supported by a grant from the Federazione Italiana Sclerosi Multipla. Acknowledgments. We are grateful to the patients for their kind collaboration.  ...  The effects induced on the CMR by writing were not different from those induced by moving. No significant effect was detected in the condition moving elbow.  ...  These data were analysed by using the automatic IEP decomposition software, developed by Stalberg (Keypoint).  ... 
doi:10.1007/s004150200086 fatcat:mtqh2rwnpnhz3cgegoquz7gnxe

Current Trajectories and New Challenges for Visual Comfort Assessment in Building Design and Operation: A Critical Review

Juan Diego Blanco Cadena, Tiziana Poli, Mitja Košir, Gabriele Lobaccaro, Andrea Giovanni Mainini, Alberto Speroni
2022 Applied Sciences  
One possibility is to consider such physiological features that induce lighting experiences.  ...  In that regard, an occupant centred approach is more suitable for evaluating the lighting perception of the indoor environment.  ...  The quantity and quality of light should be enough to allow building users to perform the assigned area's correspondent activities safely and without induced visual fatigue.  ... 
doi:10.3390/app12063018 fatcat:lu2dl7kytfb7bnbjqhamfawtme

Visual Discomfort Assessment in Office Environments: Light-induced Physiological Responses and Visual Performance

Zahra Hamedani, University, My, Henry Skates
2020
In this research, a comprehensive method is utilised to investigate a full range of potential objective measures of visual discomfort, including involuntary light-induced physiological responses, eye movements  ...  The ocular and pupillary metrics extracted from these data were: mean Pupil Diameter (PD), Pupillary Unrest Index (PUI), spontaneous Blink Rate (BR), Blink Amplitude (BA), number of fixational eye movements  ...  Eye blinks The eye blink, the eyelid being swiftly shut and reopened, is widely accepted as an indicator of visual fatigue [53, 54] .  ... 
doi:10.25904/1912/1479 fatcat:qxzwwqeavvg7tgpufoig7ak5s4

Abstracts of the XXXIX Congress of the Spanish Society of Physiological Sciences (SECF), 18-21 September 2018, Cádiz, Spain

2018 Journal of physiology and biochemistry  
Studies originated from Spanish and worldwide laboratories have been carefully selected by the international Scientific Committee to assure scientific excellence of the event.  ...  These studies will be presented in the form of plenary lectures, symposia, oral communications and posters including, for the first time, a special session for End-of-Degree projects of contrasted quality  ...  : This work was supported by a grant from PI16/02069 and Fondos FEDER, Spain; Acknowledgements: This research was supported by Junta de Acknowledgements: This work was supported by the Spanish Consejería  ... 
doi:10.1007/s13105-018-0656-7 fatcat:3w2ixa34zzbxrdbm5hy6xyag5e

User interfaces and discrete event simulation models

Jasna Kuljis
1994 Simulation Practice and Theory  
Health concerns such as visual fatigue, stress, and radiation levels are being addressed by manufacturers and government agencies.  ...  Output devices include: visual display terminal (VDT) or visual display unit (VDU) screens, voice-synthesis systems, and other output devices.  ... 
doi:10.1016/0928-4869(94)90011-6 fatcat:w5rz6nynwfcl3g6tzpw2l4oqc4

Beyond the tracked line of sight: Gaze-driven user models [article]

David Geisler, Universitaet Tuebingen, Kasneci, Enkelejda (Prof. Dr.)
2021
The ensuing eye movements can be recorded and evaluated by state-of-the-art video-based eye-tracking systems.  ...  Hence, retinal extracted visual features are differently emphasized, suppressed, recombined, and abstracted, depending on the performed task, intention, experience, fatigue, and many other factors.  ...  The automatic detection of the driver's performed (secondary) task is a particularly valuable feature to weight and filter visual features extracted by a retina model in Part II.  ... 
doi:10.15496/publikation-53604 fatcat:2nxmddgt5nfmxc4bdjhefjrrke

The evaluation of multiple sclerosis through static chromatic perimetry

John François Kozak
1987
Twenty-two MS patients and thirty age matched normals were tested on an extensively modified version of the Fieldmaster F225 Automatic Perimeter.  ...  The purpose of the present study was to examine whether or not luminance thresholds through static, chromatic perimetry could be used to distinguish visual threshold losses in multiple sclerosis from that  ...  Perimetry has advanced over the years from a purely subjective evaluation of a patient's response to the presence or absence of coloured stimuli presented by the examiner to their stricter evaluation of  ... 
doi:10.14288/1.0097442 fatcat:csxir6g5xbfuzlypdnwnvk67gi

Jahrbuch Agrartechnik = Yearbook agricultural engineering Band 17, 2005

:None, Universitätsbibliothek Braunschweig
2005 Jahrbuch Agrartechnik  
The use of combined simulation techniques for the comprehensive development of tractor series (14) by John Deere and the application of these methods in the form of virtual environments (VDT platform  ...  In the case of vibrations induced by the driving over of road profiles, the vibrations spread as folIows: As a result of tyre elasticity, the forced movement of the wheel is introduced into the wheel rim  ...  Stutterheim evaluated the results üf examinatiüns ün apprüximately 30 smaller chaH-cutting farms and emphasized püsitive effects even für larger farms [18) .  ... 
doi:10.24355/dbbs.084-201406201009-0 fatcat:pjcaos36hfg7ngachjubr7cil4

Effects of Temporal Expectation on Complex Decision Making

David Charles Greatrex, Apollo-University Of Cambridge Repository, Apollo-University Of Cambridge Repository, Professor Ian Cross, Professor Sarah Hawkins
2018
One tests the effects of rhythmic variability and stimulus duration on auditory detection to determine specificity to complex decision making, and one investigates the effects of timing on audio-visual  ...  This includes increasing the complexity of experimental tasks, testing the effects of timing on perceptual averaging and subjective value decisions, incorporating timing as an inherent dimension of targets  ...  Thus, what starts off as an implicit automatic anticipatory process will quickly contain explicit predictive features.  ... 
doi:10.17863/cam.22822 fatcat:ga25vlnxwjbhhbyh4upggimi2q