13-09-2014, 10:31 AM
Electrooculography
[attachment=67917]
ABSTRACT
Electrooculography (EOG) is a new technology of placing electrodes on user's forehead around the eyes to record eye movements . This technology is based on the principle of recording the polarization potential or corneal-retinal potential (CRP), which is the resting potential between the cornea and the retina. This potential is commonly known as electrooculogram. (EOG) is a very small electrical potential that can be detected using electrodes. The EOG ranges from 0.05 to 3.5 mV in humans and is linearly proportional to eye displacement.Compared with the electroencelography (EEG), EOG signals have the characteristics as follows: the amplitude is relatively the same (15-200uV), the relationship between EOG and eye movements is linear, and the waveform is easy to detect. Considering the characteristics of EOG mentioned above, EOG based HCI is becoming the hotspot of bio-based HCI research in recent years.Basically EOG is a bio-electrical skin potential measured around the eyes but first we have to understand eye itself
[attachment=67917]
ABSTRACT
Electrooculography (EOG) is a new technology of placing electrodes on user's forehead around the eyes to record eye movements . This technology is based on the principle of recording the polarization potential or corneal-retinal potential (CRP), which is the resting potential between the cornea and the retina. This potential is commonly known as electrooculogram. (EOG) is a very small electrical potential that can be detected using electrodes. The EOG ranges from 0.05 to 3.5 mV in humans and is linearly proportional to eye displacement.Compared with the electroencelography (EEG), EOG signals have the characteristics as follows: the amplitude is relatively the same (15-200uV), the relationship between EOG and eye movements is linear, and the waveform is easy to detect. Considering the characteristics of EOG mentioned above, EOG based HCI is becoming the hotspot of bio-based HCI research in recent years.Basically EOG is a bio-electrical skin potential measured around the eyes but first we have to understand eye itself