A simple algorithm for the offline recalibration of eye-tracking data through best-fitting linear transformation

Vadillo, M.A. and Street, C.N.H. and Beesley, T. and Shanks, D.R. (2015) A simple algorithm for the offline recalibration of eye-tracking data through best-fitting linear transformation. Behavior Research Methods, 47 (4). pp. 1365-1376. ISSN 1554-351X

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Abstract

Poor calibration and inaccurate drift correction can pose severe problems for eye-tracking experiments requiring high levels of accuracy and precision. We describe an algorithm for the offline correction of eye-tracking data. The algorithm conducts a linear transformation of the coordinates of fixations that minimizes the distance between each fixation and its closest stimulus. A simple implementation in MATLAB is also presented. We explore the performance of the correction algorithm under several conditions using simulated and real data, and show that it is particularly likely to improve data quality when many fixations are included in the fitting process.

Item Type:
Journal Article
Journal or Publication Title:
Behavior Research Methods
Additional Information:
cited By 2
Subjects:
ID Code:
88039
Deposited By:
Deposited On:
06 Oct 2017 19:38
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Apr 2020 05:42