TELKOMNIKA
Low-Cost Based E
2.2. Hardware Design
The hardware design 1. Infrared filter removal
Every webcam in gen allowing visible light. Because
webcam must be modified to useful for eye trackers, mainly
for controlling light conditio estimation [8].
b Figure 2. Infrared filter remov
scre 2. Attachment of visible light f
The next process is to the webcam as shown in Figu
black part of that film, usually to block the visible light is ver
purposes of this research is t cost component.
3. Making of infrared light sou After the webcam has
for the webcam. In this rese connected into 2 battery each
infrared LED. This research u close with the eye, so 1 LED is
4. Finalizing The last step to design
as shown in Figure 5. This hel ISSN: 1693-6930
Eye Tracking and Eye Gaze Estimation I Ketut Ge n of this system consist of 4 main process :
eneral equipped with infrared filter for blocking the se in this research will use infrared spectrum app
to remove the infrared filter as shown in Figure 2 nly because it is not only invisible to the user but al
itions, obtaining higher contrast images, and
a
c oval, a Webcam Microsoft Lifecam VX-1000, b W
crew is closed, c Infrared filter is removed t filter
s to attach a filter to block visible light and let only igure 3. The filter is film negative already to be prin
lly in the beginning and the end of roll film. Price o very expensive, so film negative is used instead, b
s to built eye tracking and eye gaze tracking syste ource
as been modified, the next step is supplies the inf esearch infrared light source is built using 1 infr
ch of them 1.5 volt, resistor 33 ohm, and 1 switch to use only 1 LED after consider that webcam will b
is enough for infrared source. ign hardware is linking up together all the compone
elmet later will have weared by the users of the sys Block lenses of th
Infrared filter Screw place
Screw place
Gede Darma Putra 379
he infrared light and proach, so that the
e 2. Infrared light is also it can be used
d stabilizing gaze
Webcam after the
ly infrared light into rinted and take the
of the original filter , because the main
stem based on low
infrared light source infrared LED which
to turn on or off the ll be positioned very
nents in a helmet system.
f the webcam
TELKOMNIKA
Vol. 9, No. 2, 380
a Figure 3. Attachment of visib
Figure 4
a Figure 5. a
2.3. Software Design
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