What are the various features of eyes that can be interpreted from eog?
Answers
Explanation:
TRACT: This paper presents a method of study of EOG signal for different eye movements and detection of
drowsiness using a PIC Microcontroller. Electro-oculography is a technique used to detect the electrical activities
generated by eyes. Thesignals generated during eye movements are studied with the help of EOG waveforms. The
EOG signal is digitized with the help of PIC microcontroller. Depending on the value of amplitude and frequency of
EOG signal, the drowsy and awake conditions are detected. Real time detection of drowsiness is possible due to high
speed ADC inbuilt in the microcontroller. Alarm is generated on the onset of drowsy condition.
KEYWORDS: Electro-oculography, EOG, electrodes, EOG waveforms, eye movements.
I.INTRODUCTION
Human body produces many bio-signals, which can be recorded by using electrodes placed on different body parts.
These electrodes acquire signals with even small voltages and provide information about physiological activities of
body. Signals like ECG, EEG, EMG, EOG etc. represent the electrical activities of heart, brain, muscles, eyes
respectively. EOG is electro-oculogram which indicates the electrical activities of eyes.
Human eye represents an electric dipole present between the retina and cornea of eye. The potential difference between
the retina and cornea changes along with the change in position of eye ball. The generated signal is called as Electrooculogram or EOG. The EOG signal is useful in measurement and study of eye movements and thereby can be used in
many medical applications