نتایج جستجو برای: eye blink artifact
تعداد نتایج: 177135 فیلتر نتایج به سال:
Electroencephalogram (EEG) is easily contaminated by unwanted physiological artifacts, among which electrooculogram (EOG) artifacts due to eye blinking are known to be most dominant. The eye blink artifacts are reported to affect theta and alpha rhythms of frontal EEG signals, and hard to be accurately detected in an unsupervised way due to large individual variability. In this study, we propos...
Magnetoencephalography (MEG) detects very weak magnetic fields originating from the neurons so as to study human brain functions. The original detected MEG data always include interference generated by blinks, which can be called blink artifacts. Blink artifacts could cover signal we are interested in, and therefore need removed. Commonly used artifact cleaning algorithms space projection (SSP)...
Introduction “Blink” is defined as closing and opening of the eyes in a small duration of time. In this study, we aimed to introduce a fast, robust, vision-based approach for blink detection. Materials and Methods This approach consists of two steps. In the first step, the subject’s face is localized every second and with the first blink, the system detects the eye’s location and creates an ope...
A Novel Method of Improving EEG Signals for BCI Classification C. Burger Thesis: MScEng (Mech) December 2014 Muscular dystrophy, spinal cord injury, or amyotrophic lateral sclerosis (ALS) are injuries and disorders that disrupts the neuromuscular channels of the human body thus prohibiting the brain from controlling the body. Brain computer interface (BCI) allows individuals to bypass the neuro...
The Electroencephalogram (EEG) is a biological signal that represents the electrical activity of the brain and is the main resource of information for studying neurological disorders. Corruption of EEG signal is caused by occurrence of various artifacts like line interference, electroculogram, electrocardiogram and muscle activity [3]. These artifacts resources increase the difficulty in analyz...
In the brain computer interface (BCI) research field, a neurological occurrence is the only source of control in any BCI system. Artifacts are contrary signals that can affect with neurological phenomena. These artifacts may lead to the source of control in BCI systems. Electromyography (EMG) and electrooculography (EOG) artifacts are physiological artifacts that are carefully processed in BCI ...
In the electroencephalography (EEG) study, eye blinks are a commonly known type of ocular artifact that appears most frequently in any EEG measurement. The can be seen as spiking electrical potentials which their time-frequency properties varied across individuals. Their presence negatively impact various medical or scientific research helpful when applying to brain-computer interface applicati...
An electroencephalogram (EEG) is often corrupted by different types of artifacts. Many efforts have been made to enhance its quality by reducing the artifact. The EEG contains the technical artifacts (noise from the electric power source, amplitude artifact, etc.) and biological artifacts (eye artifacts, ECG and EMG artifacts). This paper is focused on eyeblinking artifact detection from the vi...
Human face, the most active and healthy part of human body and Eyes are one of the most complex features of it. It may be used to reduce some of their critical life complexities. Eye blinking is one of the prominent areas to solve many real world problems. The process of blink detection consists of two phases. These are eye tracking followed by detection of blink. The work that has been carried...
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