ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume V-4-2021
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-4-2021, 201–208, 2021
https://doi.org/10.5194/isprs-annals-V-4-2021-201-2021
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-4-2021, 201–208, 2021
https://doi.org/10.5194/isprs-annals-V-4-2021-201-2021

  17 Jun 2021

17 Jun 2021

MAPPING OF 3D EYE-TRACKING IN URBAN OUTDOOR ENVIRONMENTS

A. Kollert1, M. Rutzinger1, M. Bremer1,2, K. Kaufmann1,3, and T. Bork-Hüffer1 A. Kollert et al.
  • 1Institute of Geography, University of Innsbruck, Austria
  • 2Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences, Austria
  • 3Institute for Comparative Media and Communication Studies, Austrian Academy of Sciences and University of Klagenfurt, Austria

Keywords: Eye-tracking, Heatmap, 3D Model, Outdoor Environment, Photogrammetry, Geospatial Digital Humanities

Abstract. New geospatial technologies and ubiquitous sensing allow new insights into people’s spatial practices and experiences of public spaces. These tools offer new data streams for analysis and interpretation of social phenomena. Mobile augmented reality tools such as smartphones and wearables merge the experience of entangled online and offline spaces in citizen’s daily life. This paper demonstrates a concept that combines eye-tracking tools with innovative mapping in order to enhance the interpretability of real outdoor environmental experiences. Through videogrammetry, a participants’ head posture can be reconstructed. Subsequently the fixations measured through eye-tracking are projected onto a 3D point cloud of the surrounding environment. The presented methodological approach is implemented in the interdisciplinary project DigitAS – The Digital, Affects and Space – which investigates the perception of public places as spaces of recreation, security or fear. The project’s Mixed Methods approach combined qualitative, mobile, in-situ and reconstructive methods with eye-tracking in an outdoor setting. Potentials of the geospatial mapping concept for social science research is discussed.