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Driving is an activity that requires considerable alertness. Insufficient attention, imperfect perception, inadequate information processing, and sub-optimal arousal are possible causes of poor human performance. Understanding of these causes and the implementation of effective remedies is of key importance to increase traffic safety and improve driver's well-being. For this purpose, we used deep...
In the presented paper we have explained the design and implementation of a system that is capable in monitoring of mental stress in real time. To determine the stress of the person we have tried to estimate the autonomic state of the person, the idea is based on the basic fundamental, and it states emotional arousal is directly linked with the autonomic state of the person. To determine the autonomic...
Remote Photoplethysmography (rPPG) is a technique that consists in estimating physiological parameters such as heart rate from live or recorded video sequences taken by conventional camera or even webcams. This technique is increasingly used in many application fields thanks to its simplicity and affordability. The basic idea is that the arterial blood flow shows regularity due to the heartbeat. This...
Due to the advent of the aging society, homecare is more and more important. In this paper, we design and implement the contactless pulse rate measurement method based on the Android smart TV, which allows the user to measure their pulse rate without requiring of contact sensors. This framework provides a convenient measurement environment for homecare. The results of the experiment show the presenting...
Tracking heart rate for fitness using wrist-type wearables is challenging, because of the significant noise caused by intensive wrist movements. In this paper, we present FitBeat - a lightweight system that enables accurate heart rate tracking on wrist-type wearables during intensive exercises. Unlike existing approaches that rely on computation- intensive signal processing, FitBeat integrates and...
Sleep, once thought to form a passive process in human life, is recently discovered to be not so passive with respect to brain activity at all. It has been possible to diagnose both physiological and psychological disorders by the inspection of sleep stages. This paper presents a model for sleep stage detection using EEG, heart rate and galvanic skin response sensors that are affordable and easily...
Stress causes many physiological changes in the body and has significant effects on physiology. Various types of acute stress include social, competition, emotional and mental stress. Several studies and experiments have been conducted to investigate stress detection and measurement with physiological signals. We designed social and competition stress experiments to test our algorithms to discriminate...
The aim of this work is to obtain measurements of heart rate in a noncontact way throughout the light reflected by the human skin with a portable instrument. The system was designed to apply a laser and to receive the reflected light from the skin where a vein is beating, later amplify and acquire the signal in a computer, processing and computing the frequency spectrum of the signal to obtain the...
In this paper, we present a system that is a combination of spatial and temporal processing to emphasize the subtle changes in a video. Images and videos contain valuable information about the changes that evolve over time. There is a lot of information in videos, which is not visible by naked eye, and we need to magnify these small changes to study its behavior. The human eye has limited spatial-temporal...
Photoplethysmography (PPG) is one of the simple and non-invasive heart rate (HR) sensing methods, but when applying it to a person during exercise, the output is contaminated with motion artifact (MA). Furthermore, when the pressure to stabilize the sensor on the skin surface is lower, extremely large values referred to as "outliers" are often observed in the sensed heart rate. To cancel...
Video based heart rate estimation has several advantages compared to the classical method. Current approaches use long time windows (30sec) to calculate heart rates, which results in high latency and is a big disadvantage for a practical use. To overcome this constraint, we propose a low latency approach for continuous frame based heart rate estimation. It is based on combination of face tracking...
Region of interest selection is an essential part for remote photoplethysmography (rPPG) algorithms. Most of the time, face detection provided by a supervised learning of physical appearance features coupled with skin detection is used for region of interest selection. However, both methods have several limitations and we propose to implicitly select living skin tissue via their particular pulsatility...
We present an improved method for the remote estimation of heart rate from face videos. By relying on visual techniques used for the decomposition of spatial information, we propose a novel pipeline to properly extract and process the time signal containing the heart rate information. In order to validate our approach, a dataset of videos containing subjects in a stationary position has been recorded,...
Real-time vital sensing for persons during exercises is important for effective physical training, healthcare and injury/disease prevention. We have developed a vital sensor node which can sense heart rate (HR), energy expenditure (EE) and body temperature (BT), and furthermore can transmit the sensed data by wireless in real-time, just by hanging itself with the clip at the rim of undershorts. The...
A novel method, Stochastically Acquired Photoplethysmo-gram for Heart rate Inference in Realistic Environments (SAPPHIRE), is proposed for robust remote heart rate measurement through broadband video. A set of stochastically sampled points from the cheek region is tracked and used to construct corresponding time series observations via skin erythema transforms. From these observations, a photo-plethysmogram...
The heart rate (HR) is one of the important indicators for observing the patient condition. Therefore, many estimation techniques for acquiring heart rate have been developed. The photoplethysmography (PPG) and electrocardiography (ECG) are the common measurement techniques for estimating the heart rate. However, they should contact on the human skin in order to estimate the accurate heart rate. In...
Burn debridement is a challenging technique that requires significant skill to identify regions requiring excision and appropriate excision depth. A machine learning tool is being developed in order to assist surgeons by providing a quantitative assessment of burn-injured tissue. Three noninvasive optical imaging techniques capable of distinguishing between four kinds of tissue-healthy skin, viable...
The ability to assess a user's emotional reaction from biometrics has applications in personalization, recommendation, and enhancing user experiences, among other areas. Unfortunately, understanding the connection between biometric signals and user reactions has previously focused on black box techniques that are opaque to the underlying physiology of the user. In this paper, we explore a novel user...
Tobacco use is the leading cause of preventable death and smoking-related illness worldwide. Research has shown that antismoking advertising may help reduce this habit. Nowadays, public service announcements (PSAs) are considered “Effective” or “Ineffective” on the base of official reports concerning behavioral/attitudinal changes toward healthier patterns and health-related savings following the...
Nowadays the Quality of Experience of multimedia content is largely investigated in order to understand the overall acceptability of the content as perceived subjectively by the end user. In this paper, a non-invasive technique is adopted for estimating the heart rate of a subject while he is watching 3D contents, as a first step towards the ultimate goal of relating heart rate variations to the quality...
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