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This paper describes the mental stress assessment using Electrocardiography (ECG) signal. Stress reflects the changes in heart rates under stressful situation. In this work, Heart Rate Variability (HRV) from ECG signal is used to study the activity of Autonomic Nervous System (ANS) under stress states. The Stroop colour word test is used to induce stress(More)
In recent years, Electrocardiogram (ECG) plays an imperative role in heart disease diagnostics, Human Computer Interface (HCI), stress and emotional states assessment, etc. In general, ECG signals affected by noises such as baseline wandering, power line interference, electromagnetic interference, and high frequency noises during data acquisition. In order(More)
Assessing human stress in real-time is more difficult and challenging today. The present review deals about the measurement of stress in laboratory environment using different stress inducement stimuli by the help of physiological signals. Previous researchers have been used different stress inducement stimuli such as stroop colour word test (CWT), mental(More)
The increase in the use of mobile phones generates the formation of mobile social networks which can make use of various purposes including education, public health and controlling epidemics. Social networks consist of the basic building blocks called as the communities within which the social interactions are intensive, but between which they are very(More)
The brake system is the primary system in an automobile which ensures its safety on the road. The ideal brake system should operate with the least effort from the driver and should stop the vehicle within the minimum possible distance. This paper deals with the air brake system which is widely used in commercial vehicles such as trucks, buses and(More)
Shape From Focus (SFF) is a widely researched technique in the field of computer vision for scene reconstruction. The SFF technique exploits the fact that the pixel focus preserves depth information. The SFF technique is based on estimation of focus levels of pixels in a stack of images acquire from different focal distances. SFF requires telecentric lenses(More)