MS41Visual appearence of surfaces: concepts and metrolog

Nouvelle formation
Niveau : Perfectionnement
Publics :

Senior technicians or engineers wishing to deepen the different issues related to characterize and simulate surfaces.

Pré-requis :

Fundamentals of photometry and optics for lighting, basic knowledge on computer sciences softwares such as Matlab

Langue de la formation : Anglais
Capacité maximum : 20
Prix : 1720 € -
Durée : 3,5 days
En partenariat avec

• To use advanced tools for realistic simulation of photometry, and visual aspect of a lighting system.
• To be able to relate the characteristics of surfaces to their expected and observed visual aspect.
• To know how to use of the relevant characterisation tools.

Voir les sessions
Visual appearence of surfaces: concepts and metrolog
Thèmes abordés

Light-Matter interactions on surfaces
• Absorption, diffusion in mediums, reflection/transmission at rough or plane interfaces
• Appearance of a spectrum and color properties (luminance, tint, colorfulness…)
• Visual appearance of surfaces (colorimetric aspect, diffused aspect, brightness, gonio-chromatic aspect, BRDF)
Characterization of surfaces (BRDF), visual aspect
• BRDF representations, models and their applications (Empirical model for image synthesis (Phong, Blinn-Phong), Physical model for simulation (He, Cook-Torrance)
• Characterizing BRDF and converting datas to models (characterisation tools, tools precision limits, optimization methods (fitting) and precision)

Le programme

Surface characterization and visual aspect of materials
• Appearance and visual attributes
• Radiometric characterization of materials
• Light absorption and scattering in materials
• Surface reflection and scattering (parameters and models)
• Layered surfaces (extended two-flux models)
BRDF & Metrology
• Practical realization of a goniospectrophotometer
• Classical designs for gonio
• Illumination  
• Sample holder (robot based, Rotation stage based)
• Illuminated area and the consequences for the design
• Detection
• Metrology and good measurement practices
Optical surface characterization
• Definitions, Measurement methods, Sample overview, Application
• Human factor and Human centered design
• Human brain, human behavior, human groups
• Usability
• Interface inspection
• Heuristic, ergonomic criteria & validation methods
• User experience


Courses and tutorials

Pas de session planifiée pour le moment

Responsable(s) pédagogique(s) :
  • Mathieu Hébert - Associate Professor at Institut d'Optique
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