A Low Cost Pupillometry Approach

2015 ◽  
Vol 6 (4) ◽  
pp. 49-61
Author(s):  
Sergios Petridis ◽  
Theodoros Giannakopoulos ◽  
Constantine D. Spyropoulos
Keyword(s):  
Elderly Population ◽  
Emotional State ◽  
Low Cost ◽  
The Elderly ◽  
Monitoring Methods ◽  
Continuous Increase ◽  
Pupil Center ◽  
Web Camera ◽  
The Face ◽  
Source Of Information

The need for low-cost health monitoring is increasing with the continuous increase of the elderly population. In this context, unobtrusive audiovisual monitoring methods can be of great importance. More particularly, the diameter of the pupil is a valuable source of information, since, apart from pathological cases, it can reveal the emotional state, the fatigue and the ageing. To allow for unobtrusive monitoring to gain acceptance, one should seek for efficient methods of monitoring using common low-cost hardware. This paper describes a method for monitoring pupil sizes using a common, low-cost web camera in real time. The proposed approach detects the face and the eyes area at first stage. Subsequently, optimal iris and sclera location and radius, modeled as ellipses, are found using efficient spatial filtering. As a final step, the pupil center and radius is estimated by optimal filtering within the area of the iris. Experimental results show both the efficiency and the effectiveness of our approach.

A Low Cost Pupillometry Approach

2020 ◽  
pp. 765-777
Author(s):  
Sergios Petridis ◽  
Theodoros Giannakopoulos ◽  
Constantine D. Spyropoulos
Keyword(s):  
Health Monitoring ◽  
Low Cost ◽  
The Elderly ◽  
Optimal Filtering ◽  
Monitoring Methods ◽  
Continuous Increase ◽  
Pupil Center ◽  
Web Camera ◽  
The Face ◽  
Source Of Information

The need for low-cost health monitoring is increasing with the continuous increase of the elderly population. In this context, unobtrusive audiovisual monitoring methods can be of great importance. More particularly, the diameter of the pupil is a valuable source of information, since, apart from pathological cases, it can reveal the emotional state, the fatigue and the ageing. To allow for unobtrusive monitoring to gain acceptance, one should seek for efficient methods of monitoring using common low-cost hardware. This paper describes a method for monitoring pupil sizes using a common, low-cost web camera in real time. The proposed approach detects the face and the eyes area at first stage. Subsequently, optimal iris and sclera location and radius, modeled as ellipses, are found using efficient spatial filtering. As a final step, the pupil center and radius is estimated by optimal filtering within the area of the iris. Experimental results show both the efficiency and the effectiveness of our approach.

Development of a Wearable Biofeedback Emotional Control Vest for Older Adult

2013 ◽  
Vol 680 ◽  
pp. 466-472 ◽  
Author(s):  
Hsin Chang Lo ◽  
Pin Chang Lin ◽  
Kang Ping Lin
Keyword(s):  
Older Adults ◽  
Older Adult ◽  
Elderly Population ◽  
Emotional State ◽  
The Elderly ◽  
Control Device ◽  
Emotional Control ◽  
Control Module ◽  
The World ◽  
Emotional Condition

Similar to many other countries in the world, the elderly population in Taiwan is now growing rapidly. Some older adults are found to have difficulty controlling their emotion, which may later develop into psychological diseases such as anxiety disorder. Therefore, emotional control is an important issue for elderly citizens. This study proposed a wearable biofeedback emotional control device, FeelVest, which integrates electrocardiography acquisition with heart rate variability analyzing techniques to detect user’s emotion. When a user is nervous and unstable, FeelVest would analyze the emotional state of the user. If the user’s emotional condition is judged as abnormal, the control module would remind the user to relax through vocal notification, or broadcast relaxation melodies to ease the user’s nerve. With this vest, older adults are able to monitor and regulate their own emotion and have a healthier life style.

scholarly journals Review of accessibility and usability guidelines for website design for the elderly people

2017 ◽  
Vol 15 (42) ◽  
pp. 9-29
Author(s):  
Diego Fernando Aguirre ◽  
Iván Abadía
Keyword(s):  
Health Services ◽  
Elderly People ◽  
Elderly Population ◽  
Digital Health ◽  
The Elderly ◽  
Digital Content ◽  
Website Design ◽  
Visual Disabilities ◽  
Special Services ◽  
Source Of Information

By 2050, the growth of the elderly population in Colombia is estimated at 10% and thus a greater demand for special services (such as health services) for the elderly. This justifies the exploration of digital health content as an important source of information for this population. The accessibility and usability guidelines for website design –e.g., TAW and WACG– do not have specific guidelines to mitigate the motor, cognitive or visual disabilities characteristic of aging, which become a barrier for this group to consult necessary information for administrative processes that involve health. This review of accessibility and usability guidelines is presented, facilitating the consumption of specific contents and generating better interactions with such systems, which will lead to the construction of guidelines based on existing recommendations that allow the development of aspects related to interaction, legibility and usability in digital content for the elderly.

scholarly journals Giant Bowen’s Disease on the Face: Case Report and Review of the Literature

2019 ◽  
Vol 7 (4) ◽  
pp. 606-609
Author(s):  
Nina Caca-Biljanovska ◽  
Irina Arsovska-Bezhoska ◽  
Marija V’lckova-Laskoska
Keyword(s):  
Elderly Population ◽  
Wide Spectrum ◽  
The Elderly ◽  
Invasive Squamous Cell Carcinoma ◽  
Bowen’S Disease ◽  
Review Of The Literature ◽  
Case Presentation ◽  
Bowen's Disease ◽  
The Face ◽  
Erythematous Patch

BACKGROUND: Giant Bowen’s disease is a rare and unusual clinical manifestation. Presenting as extensive scaly erythematous patch or plaque, it gives rise to a wide spectrum of dermatological differential diagnoses. CASE PRESENTATION: We report a patient with giant Bowen’s disease on the face that was successfully treated with topical 5 % imiquimod. A review of the literature was made with the aim to analyse and compare the findings in it with our observation. CONCLUSION: We present this case to draw attention to the importance of the self skin examination in the elderly population. Also, to prevent development to invasive squamous cell carcinoma from Bowen’s disease, we recommend mandatory dermoscopic examination on every long-standing erythemosquamous lesion.

scholarly journals A Low-Cost Three-Dimensional DenseNet Neural Network for Alzheimer’s Disease Early Discovery

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1302
Author(s):  
Braulio Solano-Rojas ◽  
Ricardo Villalón-Fonseca
Keyword(s):  
Neural Network ◽  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Elderly Population ◽  
Operating Characteristic ◽  
Low Cost ◽  
Characteristic Curve ◽  
Three Dimensional ◽  
The Elderly ◽  
Disease Stages

Alzheimer’s disease is the most prevalent dementia among the elderly population. Early detection is critical because it can help with future planning for those potentially affected. This paper uses a three-dimensional DenseNet architecture to detect Alzheimer’s disease in magnetic resonance imaging. Our work is restricted to the use of freely available tools. We constructed a deep neural network classifier with metrics of 0.86¯ mean accuracy, 0.86¯ mean sensitivity (micro-average), 0.86¯ mean specificity (micro-average), and 0.91¯ area under the receiver operating characteristic curve (micro-average) for the task of discriminating between five different disease stages or classes. The use of tools available for free ensures the reproducibility of the study and the applicability of the classification system in developing countries.

Validity and Reliability of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE)

GeroPsych ◽  
2019 ◽  
Vol 32 (3) ◽  
pp. 145-151
Author(s):  
Mahshid Foroughan ◽  
Zahra Jafari ◽  
Ida Ghaemmagham Farahani ◽  
Vahid Rashedi
Keyword(s):  
Psychometric Properties ◽  
Elderly Population ◽  
Formal Education ◽  
The Elderly ◽  
Cognitive State ◽  
Validity And Reliability ◽  
Internal Reliability ◽  
Dsm Iv ◽  
Test Retest Reliability ◽  
Farsi Version

Abstract. This study examines the psychometric properties of the IQCODE and its applicability in the Iranian elderly population. A group of 95 elderly patients with at least 4 years of formal education who fulfilled the criteria of DSM-IV-TR for dementia were examined by the MMSE and the AMTs. The Farsi version of the IQCODE was subsequently administered to their primary caregivers. Results showed a significant correlation ( p = .01) between the score of the questionnaire and the results of the MMSE ( r = −0.647) and AMTs ( r = −0.641). A high internal reliability of the questionnaire was confirmed by Cronbach’s alpha coefficient (α = 0.927) and test-retest reliability by correlation coefficient ( r = 0.81). This study found that the IQCODE has acceptable psychometric properties and can be used for evaluating the cognitive state in the elderly population of Iran.

Spontaneous Intracerebral Hemorrhage in the Elderly Population

2018 ◽  
Author(s):  
S. Sommaruga ◽  
R. Beekman ◽  
S. Chu ◽  
Z. King ◽  
C. Matouk ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Elderly Population ◽  
The Elderly ◽  
Spontaneous Intracerebral Hemorrhage

Percutaneous Sacroplasty for Sacral Insufficiency Fractures: Case Series and Review of Presentation, Diagnosis, and Treatment

2019 ◽  
Vol 3 ◽  
pp. 4
Author(s):  
Andrew C. Clark ◽  
Devang Butani
Keyword(s):  
Low Back Pain ◽  
Elderly Population ◽  
Case Series ◽  
The Elderly ◽  
Treatment Method ◽  
Open Reduction Internal Fixation ◽  
Low Back ◽  
Insufficiency Fractures ◽  
Invasive Treatment ◽  
Sacral Insufficiency Fractures

Sacral insufficiency fractures (SIFs) are a cause of debilitating low back pain that is often difficult to diagnosis and manage. The diagnosis of SIF is often delayed due to inaccurately attributing symptoms to spondylosis, which is a commonly present in the elderly population where SIFs are most prevalent. Historically, treatment consisted of medical management and open reduction internal fixation reserved for severe cases. However, percutaneous sacroplasty has emerged as a minimally invasive treatment option which provides early pain relief without significant complications. The objective of this article is to raise awareness of SIFs and percutaneous sacroplasty as an effective and safe treatment method.

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