Abstract
Line-of-sight (LOS) information acquired from the eye is quite valuable in information communication technology (ICT). LOS detection systems that do not impose physical or psychological stress are strongly demanded. In this study, we fabricated and demonstrated a wearable LOS detection system that consists of micro-fabricated transparent optical sensors affixed on eyeglasses. The sensor array detects the difference in the intensity of light reflected from the pupil and the white of the eye (sclera) and then determines the view angle. The system is also equipped with a CCD camera to acquire the user's field-of-view (FOV) to deduce the LOS by using the detected view angle. This paper first presents the shapes and arrangement of the array of four cells on the eyeglasses. With only four sensor cells, we can detect the view angle in both the horizontal and vertical directions. We describe the LOS detection system and show experimentally that the error is as small as 1.5. In addition, we deduce the characteristic output signals of the cells when the user blinks. Eye-blinking can be used as a trigger to initiate LOS measurement, select objects, etc. Finally, we successfully demonstrate the effectiveness of the proposed system to detect a user's LOS in applications that include the selection of objects to express the user's intent and tracking the point of regards to deduce the user's interest.
| Original language | English |
|---|---|
| Pages (from-to) | 208-214 |
| Number of pages | 7 |
| Journal | Sensors and Actuators, A: Physical |
| Volume | 205 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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Keywords
- Dye-sensitized photovoltaic device
- Information communication technology
- Line-of-sight
- Wearable
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
- Metals and Alloys
- Surfaces, Coatings and Films
- Instrumentation
Cite this
Wearable line-of-sight detection system using micro-fabricated transparent optical sensors on eyeglasses. / Ozawa, Masataka; Sampei, Kota; Cortes, Carlos; Ogawa, Miho; Oikawa, Akira; Miki, Norihisa.
In: Sensors and Actuators, A: Physical, Vol. 205, 01.01.2014, p. 208-214.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Wearable line-of-sight detection system using micro-fabricated transparent optical sensors on eyeglasses
AU - Ozawa, Masataka
AU - Sampei, Kota
AU - Cortes, Carlos
AU - Ogawa, Miho
AU - Oikawa, Akira
AU - Miki, Norihisa
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Line-of-sight (LOS) information acquired from the eye is quite valuable in information communication technology (ICT). LOS detection systems that do not impose physical or psychological stress are strongly demanded. In this study, we fabricated and demonstrated a wearable LOS detection system that consists of micro-fabricated transparent optical sensors affixed on eyeglasses. The sensor array detects the difference in the intensity of light reflected from the pupil and the white of the eye (sclera) and then determines the view angle. The system is also equipped with a CCD camera to acquire the user's field-of-view (FOV) to deduce the LOS by using the detected view angle. This paper first presents the shapes and arrangement of the array of four cells on the eyeglasses. With only four sensor cells, we can detect the view angle in both the horizontal and vertical directions. We describe the LOS detection system and show experimentally that the error is as small as 1.5. In addition, we deduce the characteristic output signals of the cells when the user blinks. Eye-blinking can be used as a trigger to initiate LOS measurement, select objects, etc. Finally, we successfully demonstrate the effectiveness of the proposed system to detect a user's LOS in applications that include the selection of objects to express the user's intent and tracking the point of regards to deduce the user's interest.
AB - Line-of-sight (LOS) information acquired from the eye is quite valuable in information communication technology (ICT). LOS detection systems that do not impose physical or psychological stress are strongly demanded. In this study, we fabricated and demonstrated a wearable LOS detection system that consists of micro-fabricated transparent optical sensors affixed on eyeglasses. The sensor array detects the difference in the intensity of light reflected from the pupil and the white of the eye (sclera) and then determines the view angle. The system is also equipped with a CCD camera to acquire the user's field-of-view (FOV) to deduce the LOS by using the detected view angle. This paper first presents the shapes and arrangement of the array of four cells on the eyeglasses. With only four sensor cells, we can detect the view angle in both the horizontal and vertical directions. We describe the LOS detection system and show experimentally that the error is as small as 1.5. In addition, we deduce the characteristic output signals of the cells when the user blinks. Eye-blinking can be used as a trigger to initiate LOS measurement, select objects, etc. Finally, we successfully demonstrate the effectiveness of the proposed system to detect a user's LOS in applications that include the selection of objects to express the user's intent and tracking the point of regards to deduce the user's interest.
KW - Dye-sensitized photovoltaic device
KW - Information communication technology
KW - Line-of-sight
KW - Wearable
UR - http://www.scopus.com/inward/record.url?scp=84890286043&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890286043&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2013.11.028
DO - 10.1016/j.sna.2013.11.028
M3 - Article
AN - SCOPUS:84890286043
VL - 205
SP - 208
EP - 214
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
SN - 0924-4247
ER -