MS41Visual appearence of surfaces: concepts and metrology

Level: Advanced/Specialized

Senior technicians or engineers wishing to deepen the different issues related to characterization and simulation of surfaces


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

Language of the training: English
Maximum capacity: 5
Price: 1720 € HT -
Duration: 4 days
  • 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
Check the sessions
Visual appearence of surfaces: concepts and metrology
Addressed topics

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)
The program

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
Methodology and assessment

Lectures and tutorials

Next session: date to be defined

  • December 03, 2018 to December 06, 2018 MS41 | Visual appearence of surfaces: concepts and metrology Palaiseau
Pedagogical manager(s):
  • Mathieu Hébert - Professor at Institut d'Optique

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Dernière modification le 30/11/1969