Recently i have been experimenting with feature matching and transformation. I looked for some sample code online, based on opencv of course, and ended up putting together a little program that tracks the scroll position on a webpage onto a reference image of the page. On mobile devices it could be quite tricky to track …
Marker Tracking & Eye Tracking
Laboratory experiments in psychology are often criticized for being far from reality. To achieve higher ecological validity, mobile research equipment can be used. Eye tracking glasses, for example, allow us to study gaze behavior in natural situations. The main problem with using such devices is mapping gaze coordinates onto actual stimuli (or a reference image …
Arduino for Data Collection
A while back, a colleague of mine showed me an interesting DIY interface designed to take touch input from infants. It was old and difficult to get it working with modern computers. It got me thinking, why don't researchers use modern microprocessors to make custom interfaces? The purpose of this article is just to inform …
Tobii Pro SDK in Psychopy
Researchers in fields related to psychology have probably heard of PsychoPy; It is a Python-based software that made creating complex experiments much more accessible. However, adding eye tracking to our experiment can be difficult without previous experience. In this article I share script snippets to integrate a Tobii Pro eye tracker into a PsychoPy Builder …
Experiment Programming
Experiment programming in PsychoPy