Article - Webcam-Based Eye Tracking vs. an Eye Tracker (Pros and Cons)

  • Metadata:
    • author: Ole Baunbæk Jensen
    • title: Webcam-Based Eye Tracking vs. an Eye Tracker [Pros & Cons] - iMotions
    • url: Weblink
  • This article was written by an eyetracking hardware selling firm, so be wary. Also, it only covers the very basics of the topic.
  • Eyetrackers use near-infrared light which allows the algorithm to accurately detect the pupil against the surrounding iris
  • Webcams also record in HD, but suffer framrate issues
  • as webcams depend on ambient light, that could serve another problem
  • Mapping eye movement with webcam:
    • Detect location of face
    • Detect location of eyes within the face
    • Detect orientation of left and right eye
    • Map the orientation of the eyes onto the screen coordinate system
  • Participants need to be very steady
  • Their eyetracking solution for webcams starts at 2,900 Euros.