Qualitative and Quantitative Visual Information Detected by Portable Eye-Tracking Technology

摘要

This paper presents some results of a larger study about vision geometry, carried out between 2014and 2016 at the Lisbon School of Architecture, considering eye-tracking technology as an effectiveway of studying human vision. The methodology relied on portable eye-tracking equipment toanalyze 3D immersive visual perception. 30 observers conducted 120 analyses of four differentthree-dimensional architectural spaces. The 120 samples allowed the analysis of 60,000 videoframes to understand different kinds of elements that can be used to describe and study visualinformation. Quantitative and qualitative results are presented in the form of graphics to betterunderstand eye movements in the perception of three-dimensional visual spaces, with a particularfocus on macro-saccadic movements. The purpose of this work is to examine how the technologyworks, the possibilities it offers, and its limitations. The paper presents results in a way that seemstrustworthy to work with at present, in order to obtain insights of scientific value that can pointtowards future possible resolutions of current methodological and technological issues.