scholarly journals Measuring the Spatial Noise of a Low-Cost Eye Tracker to Enhance Fixation Detection

2018 ◽  
Vol 4 (8) ◽  
pp. 96 ◽  
Author(s):  
Kristien Ooms ◽  
Vassilios Krassanakis
Keyword(s):  
Low Cost ◽  
Methodological Framework ◽  
Eye Tracker ◽  
Artificial Eye ◽  
Fixation Detection ◽  
Spatial Noise ◽  
Experimental Process ◽  
Real Test ◽  
Selection Of

The present study evaluates the quality of gaze data produced by a low-cost eye tracker (The Eye Tribe©, The Eye Tribe, Copenhagen, Denmark) in order to verify its suitability for the performance of scientific research. An integrated methodological framework, based on artificial eye measurements and human eye tracking data, is proposed towards the implementation of the experimental process. The obtained results are used to remove the modeled noise through manual filtering and when detecting samples (fixations). The outcomes aim to serve as a robust reference for the verification of the validity of low-cost solutions, as well as a guide for the selection of appropriate fixation parameters towards the analysis of experimental data based on the used low-cost device. The results show higher deviation values for the real test persons in comparison to the artificial eyes, but these are still acceptable to be used in a scientific setting.

Improving quality of life for dialysis patients through telecare

2000 ◽  
Vol 6 (1_suppl) ◽  
pp. 80-83 ◽  
Author(s):  
Karl A Stroetmann ◽  
Peter Gruetzmacher ◽  
Veli N Stroetmann
Keyword(s):  
Quality Of Life ◽  
Low Cost ◽  
Video Communication ◽  
Daily Routine ◽  
Dialysis Patients ◽  
Home Dialysis ◽  
Service Support ◽  
Initial Results ◽  
Selection Of

Home dialysis can improve the care and quality of life for patients with renal failure. We have explored the possibility of extending home care to more patients needing continuous ambulatory peritoneal dialysis (CAPD) using telemedicine. We tested videoconferencing support for five CAPD patients using low-cost ISDN equipment (128 kbit/s). Initial results indicated that it was possible to integrate video-communication into the daily routine of the clinic and the response from patients was surprisingly positive. Selection of appropriate, affordable technology and the ISDN service support by the telecommunications provider proved to be considerably more difficult than anticipated. The first indications also suggest medical advantages for home teledialysis.

scholarly journals Accuracy and precision of fixation locations recorded with the low-cost Eye Tribe tracker in different experimental set-ups

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Kristien Ooms ◽  
Lien Dupont ◽  
Lieselot Lapon ◽  
Stanislav Popelka
Keyword(s):  
Low Cost ◽  
Sampling Rate ◽  
Eye Tracker ◽  
Temporal Precision ◽  
Accuracy And Precision ◽  
Fixation Locations ◽  
Recorded Data ◽  
Set Up ◽  
Tracking Devices ◽  
Selection Of

This article compares the accuracy and precision of the low-cost Eye Tribe tracker and a well-established comparable eye tracker: SMI RED 250. Participants were instructed to fixate on predefined point locations on a screen. The accuracy is measured by the distance between the recorded fixation locations and the actual location. Precision is represented by the standard deviation of these measurements. Furthermore, the temporal precision of both eye tracking devices (sampling rate) is evaluated as well. The obtained results illustrate that a correct set-up and selection of software to record and process the data are of utmost importance to obtain acceptable results with the low-cost device. Nevertheless, with careful selections in each of these steps, the quality (accuracy and precision) of the recorded data can be considered comparable.

Restoration of Agricultural Machines Surfaces by White Cast Iron with the Formation of Technological Repair Units

2018 ◽  
Vol 927 ◽  
pp. 43-47
Author(s):  
V.K. Afanasyev ◽  
A.P. Chernysh ◽  
S.V. Dolgova
Keyword(s):  
Surface Layer ◽  
Cast Iron ◽  
White Cast Iron ◽  
Low Cost ◽  
Operating Conditions ◽  
Technological Environment ◽  
New Approach ◽  
Selection Of ◽  
Agricultural Machines

This article develops a fundamentally new approach in the selection of optimal methods for restoring of worn surfaces of agricultural machines’ tools with the formation and application of technological repair units. Based on the systematization and linkage of modular worn-out surfaces, their operating conditions, technological environment and the choice of their optimal combinations, it found a low-cost method of restoring details with white cast iron to gain a necessary quality of a new surface layer.

Nudging Urban Food Pantry Users in Utah Toward Healthier Choices

2020 ◽  
pp. 152483992090468
Author(s):  
Casey Coombs ◽  
Mateja R. Savoie-Roskos ◽  
Heidi LeBlanc ◽  
Julie Gast ◽  
Jackie Hendrickson
Keyword(s):  
Low Cost ◽  
Dietary Quality ◽  
Healthy Foods ◽  
Chi Square ◽  
Convenience Sample ◽  
Food Pantry ◽  
Nutrition Programs ◽  
The Impact ◽  
Selection Of

Purpose. To evaluate the impact of a nudge program on food pantry clients’ self-reported selection and use of healthy foods. Method. A convenience sample of clients of six urban food pantries in Utah were surveyed about their experience with the Thumbs Up for Healthy Choices nudge program. Chi-square tests were used to identify associations between demographic characteristics and self-reported program impact. Results. Ninety-four percent (n = 158) of respondents agreed that the program made it easier to make healthy choices. Sixty-five percent reported healthier diets since its implementation. Additionally, Hispanic respondents were more likely to report positive impacts than non-Hispanic respondents. Conclusions and Implications. Nudge programs are effective in increasing the selection of healthy foods among pantry clients in Utah. Impacts seemed to be particularly positive for Hispanic pantry users in Utah. Nutrition programs should consider implementing these low-cost strategies to improve dietary quality of pantry users.

scholarly journals Noise Annoyance in Urban Life: The Citizen as a Key Point of the Directives

Proceedings ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
Alexandra Labairu-Trenchs ◽  
Rosa Alsina-Pagès ◽  
Ferran Orga ◽  
Maria Foraster
Keyword(s):  
Sensor Network ◽  
Road Traffic ◽  
Low Cost ◽  
Traffic Noise ◽  
Urban Life ◽  
Road Traffic Noise ◽  
Acoustic Sensor ◽  
Urban Noise ◽  
Selection Of

The improvement of the quality of life in the framework of the smart city paradigm cannot be limited to measuring objective environmental factors, but should also consider the assessment of the citizens’ health. Road traffic noise has been widely studied in terms of citizens’ annoyance and its impact on health, but other types of urban noise are usually outside of those analyses. Each node of a wireless acoustic sensor network can pick up street noise and can even record specific sounds that reach a higher equivalent level for study, but the most important thing for administration is whether certain types of noise annoy the citizen. In this work, we present the analysis and the selection of several audio samples collected by a wireless acoustic sensor network in an urban environment in order to conduct perceptive tests by several users. This a first approximation to the evaluation of the real perception of citizens’ annoyance with respect to the urban noise collected by a low-cost wireless acoustic sensor network.

scholarly journals A Low-cost Webcam-based Eye Tracker and Saccade Measurement System

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Eye Movements ◽  
Cognitive Processes ◽  
Low Cost ◽  
Measurement Tool ◽  
Eye Tracker ◽  
Human Practices ◽  
High Level ◽  
Eye Location ◽  
The Brain

Eye movements are integrated with cognitive processes, which indeed make it a helpful research basis for the investigation of human practices. Eye movements can be deployed in discovering several cognitive processes of the brain. This research utilizes low-resolution webcam to develop an eye tracker and saccades measurement tool to extensively lower the gadgets expenses. A consistent algorithm is developed to suit the quality of the webcam using open-source software (Python) to record the time series of the eye location. Likewise, several algorithms are proposed to extract high-level eye movement saccadic measurements from the raw gaze outputs. A pilot study is performed on ten normal participants and Multiple Sclerosis (MS) patients. Experimental results demonstrate that the proposed system is quick, simple and efficient for eye tracking and saccade measurement. The developed tool can be used by clinicians and medical physicians for the diagnosis and identification of neurological disorders

Ensuring the quality of assembly of high-precision products based on the method of individual selection of parts

2020 ◽  
pp. 152-157
Author(s):  
N.A. Zadorina ◽  
V.V. Nepomiluev
Keyword(s):  
High Precision ◽  
Lower Cost ◽  
Low Cost ◽  
Individual Selection ◽  
Required Quality ◽  
Selection Of

The results of a study of the method of individual selection of parts when assembling machines containing multilink dimensional chains are presented. It is shown that the use of the proposed algorithm for the selection of parts can signifi cantly increase the accuracy of such machines at low cost, which makes it possible to provide the required quality of their assembly at a lower cost.

scholarly journals ANALISIS FAKTOR PRIORITAS DALAM PEMILIHAN PERUMAHAN KPR MENGGUNAKAN METODE AHP

2018 ◽  
Vol 1 (2) ◽  
pp. 19
Author(s):  
Zulfi Azhar ◽  
Masitah Handayani
Keyword(s):  
Public Interest ◽  
Analytical Hierarchy Process ◽  
Low Cost ◽  
House Price ◽  
Ahp Method ◽  
The Government ◽  
Hierarchy Process ◽  
Calculation Analysis ◽  
Selection Of

The high public interest in the ownership of decent and cheap housing, so fertile the business of Kredit Perumahan Rakyat (KPR). The rapid growth of housing-based mortgages due to the subsidy from the government so that people have the ease of a minimum of the price. Even sometimes found housing developers who offer low-cost advance materials until no down payment. As a result, the quality of buildings, facilities, and legality rumahpun sidelined. This will obviously harm society in the future. Therefore, the community must have the ability in determining the KPR which with various criteria that will be able to prevent society from loss. This study aims to analyze the factors of priority in the selection of housing KPR. This method is done through the application of Analytical Hierarchy Process (AHP) method. Based on the results of the calculation analysis that has been done, then sequentially the criteria that the highest priority is the criteria of Building Quality, House Price, Advances, Location, Licensing, and Facilities.

Effect of Computerized Auditory Training on Speech Perception of Adults With Hearing Impairment

2013 ◽  
Vol 20 (3) ◽  
pp. 91-106 ◽  
Author(s):  
Rachel Pizarek ◽  
Valeriy Shafiro ◽  
Patricia McCarthy
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Literature Review ◽  
Low Cost ◽  
Experimental Designs ◽  
Auditory Training ◽  
Hearing Impairments ◽  
Communicative Disorders ◽  
And Training

Computerized auditory training (CAT) is a convenient, low-cost approach to improving communication of individuals with hearing loss or other communicative disorders. A number of CAT programs are being marketed to patients and audiologists. The present literature review is an examination of evidence for the effectiveness of CAT in improving speech perception in adults with hearing impairments. Six current CAT programs, used in 9 published studies, were reviewed. In all 9 studies, some benefit of CAT for speech perception was demonstrated. Although these results are encouraging, the overall quality of available evidence remains low, and many programs currently on the market have not yet been evaluated. Thus, caution is needed when selecting CAT programs for specific patients. It is hoped that future researchers will (a) examine a greater number of CAT programs using more rigorous experimental designs, (b) determine which program features and training regimens are most effective, and (c) indicate which patients may benefit from CAT the most.

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