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Laboratoire d'InfoRmatique en Image et Systèmes d'information
UMR 5205 CNRS / INSA de Lyon / Université Claude Bernard Lyon 1 / Université Lumière Lyon 2 / École Centrale de Lyon
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Pacific Graphics 2016 : Best Paper Award

The paper "Visual Contrast Sensitivity and Discrimination for 3D Meshes and their Applications" from Georges Nader*, Kai Wang, Franck Hetroy-Wheeler and Florent Dupont* (*M2DisCo Team members) received the best paper award of the Pacific Graphics conference held in Okinawa (Japan) (2016 october 11-14).

In this paper, authors introduces an algorithm for estimating the visual contrast on a 3D mesh. They perform a series of psychophysical experiments to study the effects of contrast sensitivity and contrast discrimination of the human visual system for the task of differentiating between two contrasts on a 3D mesh. The results of these experiments allow to propose a perceptual model that is able to predict whether a change in local contrast on 3D mesh, induced by a local geometric distortion, is visible or not. The utility of the proposed perceptual model is illustrated in a number of applications: the computation of the Just Noticeable Distortion (JND) profile for smooth-shaded 3D meshes and the use of the model allow to guide mesh processing algorithms.

Conference web site:
https://indico.oist.jp/indico/event/0/
Paper :
https://hal.archives-ouvertes.fr/hal-01376275


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