Abstract
We analyze the feasibility of a cheap eye-tracker where the hardware consists of a single webcam and a Raspberry Pi device. Our aim is to discover the limits of such a system and to see whether it provides an acceptable performance. We base our work on the open source Opengazer (Zielinski, 2013) and we propose several improvements to create a robust, real-time system which can work on a computer with 30Hz sampling rate. After assessing the accuracy of our eye-tracker in elaborated experiments involving 12 subjects under 4 different system setups, we install it on a Raspberry Pi to create a portable stand-alone eye-tracker which achieves 1.42° horizontal accuracy with 3Hz refresh rate for a building cost of €70.
| Original language | English |
|---|---|
| Article number | 2 |
| Journal | Journal of Eye Movement Research |
| Volume | 7 |
| Issue number | 3 |
| Publication status | Published - 1 Jan 2014 |
Keywords
- Eye-tracker
- Low cost
- Raspberry Pi
- Software
- Webcam