A cheap portable eye-tracker solution for common setups

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20 Citations (Scopus)


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 languageEnglish
Article number2
JournalJournal of Eye Movement Research
Issue number3
Publication statusPublished - 1 Jan 2014


  • Eye-tracker
  • Low cost
  • Raspberry Pi
  • Software
  • Webcam


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