I need to work with data from an eye tracker. I have raw data about eye coordinates. I need to reconstruct trajectories of eye movements. Since I know modern science has several methods for this task, I already googled for them, but I don't know which ones are serious and authority works.
I am not sure what you may have looked up previously, but here are a couple of referenced articles that may be of help to you: "Identifying Fixations and Saccades in Eye-Tracking Protocols" (Salvucci and Goldberg, 2000), from their abstract:
In this paper we propose a taxonomy of fixation identification algorithms that classifies algorithms in terms of how they utilize spatial and temporal information in eye-tracking protocols.
In terms of Human-computer interaction:
"Commentary on Section 4. Eye tracking in human-computer interaction and usability research: Ready to deliver the promises." (Jacob and Karn), this article makes reference to several more specific references.