6 March 2014 Stereoscopy for visual simulation of materials of complex appearance
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Abstract
The present work studies the role of stereoscopy on perceived surface aspect of computer generated complex materials. The objective is to investigate if, and how, the additional information conveyed by the binocular vision affects the observer judgment on the evaluation of flake density in an effect paint simulation. We have set up a heuristic flake model with a Voronoi: modelization of flakes. The model was implemented in our rendering engine using global illumination, ray tracing, with an off axis-frustum method for the calculation of stereo images. We conducted a user study based on a flake density discrimination task to determine perception thresholds (JNDs). Results show that stereoscopy slightly improves density perception. We propose an analysis methodology based on granulometry. This allows for a discussion of the results on the basis of scales of observation.
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Fernando da Graça, Fernando da Graça, Alexis Paljic, Alexis Paljic, Dominique Lafon-Pham, Dominique Lafon-Pham, Patrick Callet, Patrick Callet, } "Stereoscopy for visual simulation of materials of complex appearance", Proc. SPIE 9011, Stereoscopic Displays and Applications XXV, 90110X (6 March 2014); doi: 10.1117/12.2040067; https://doi.org/10.1117/12.2040067
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