Étienne PEILLARD's PhD

Visual summary of Étienne’s PhD outcomes

Étienne PEILLARD’s PhD is entitled “Toward a Characterization of Perceptual Biases in Mixed Reality – A Study of Factors Inducing Distance Misperception”, and took place between October 1st 2017 and November 24th 2020. It was a PhD in collaboration between ECN and Inria. Étienne’s PhD was directed by Guillaume MOREAU and co-supervised by Ferran ARGELAGUET and myself.

Étienne’s PhD is available here.


Virtual Reality, Augmented Reality, Mixed Reality, these words as well as their appli- cations are gradually becoming common usage. However, the reality proposed by these technologies is not identical to our regular reality.

This work aims to highlight some perceptual biases in Mixed Reality. First we study a perceptual bias linked to the observer: the anisotropy of the egocentric distances perception in Virtual Reality. In a second part, we study the exocentric perception of distances in Augmented Reality (AR). Indeed the underestimation of egocentric distances is a phenomenon frequently observed and it is therefore interesting to consider its potential transfer to the exocentric perception. Then we further study other potential biases in AR by focusing in particular on evaluating the impact of depth cues on the perception of distances. In particular, we investigate in this chapter the effect of two depth cues in AR: the impact of the position and shape of shadows on distance perception, and then the influence of accommodation on distance perception using a specific display technology: retinal projection devices.

Finally, we discuss the potential impact of interaction techniques on distance perception and propose a protocol to evaluate the effect of certain interactions on distance perception in AR, in order to perhaps bring it closer to real perception.


  • [Peillard et al. 2020] E. PEILLARD, Y. ITOH, J.-M. NORMAND, F. ARGELAGUET, G. MOREAU, A. LÉCUYER. “Can Retinal Projection Displays Improve Spatial Perception in Augmented Reality”. In 2020 IEEE International Symposium on Mixed and Augmented Reality (ISMAR), Recife, Brazil, 2020, pp. 124-133. doi:10.1109/ISMAR50242.2020.00028 (22.8%)

  • [Peillard et al. 2019b] E. PEILLARD, F. ARGELAGUET, J.-M. NORMAND, A. LÉCUYER, G. MOREAU. “Studying Exocentric Distance Perception in Optical See-Through Augmented Reality”. In 2019 IEEE International Symposium on Mixed and Augmented Reality (ISMAR), Beijing, China, 2019, pp. 115-122. doi.10.1109/ISMAR.2019.00-13 (22%)

  • [Peillard et al. 2019a] E. PEILLARD, T. THEBAUD, J.-M. NORMAND, F. ARGELAGUET, G. MOREAU, A. LÉCUYER. “Virtual Objects Look Farther on the Sides: The Anisotropy of Distance Perception in Virtual Reality”. In 2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), Osaka, Japan, 2019, pp. 227-236. doi:10.1109/VR.2019.8797826 (21.5%) Best Conference Paper Award

Jean-Marie Normand
Jean-Marie Normand
Associate Professor in Virtual/Augmented Reality

My research interests include perception and interaction in Virtual And Augmented Reality.