Physico-realistic aspect simulation

Predicting the appearance of all types of objects, including screens, necessarily implies physical simulation.

Physico-realistic rendering of displays is especially useful for validation of the human machine interfaces (HMI) embedded in a car. Indeed the great panel of using conditions in this case can lead to very severe degradation of the image quality compare to less demanding applications.

Simulation is based on precise measurements of the emissive and reflective properties of the display. Reflective properties are measured versus wavelength and angles using a multispectral Fourier optics viewing angle instrument.

Our EZConstrast MS is the equipment use for all this measurement. The aspect of any RGB images is predicted and the reflective properties are taken into account in addition software allows to simulate any kind of display for an observer anywhere in front of it, taking into accounts most of the display imperfections.

United Visual Researchers (UVR) is a french start-up, based in Paris. They have developed Omen Render, a simulation software for Iso-Photographic rendering. This software perform the render in spectral and polarized mode and is based on ELDIM equipments measurements. It means that all lights and materials data come from measurements ensuring the reality and feasibility of the scene.

The software make spectral simulations using directly the color and spectral measurement results from ELDIM equipment, to obtain accurate simulation of any type of display with any type of illumination environment.

The main goal is to render reliable images of virtual scenes to help designers to take effective decisions related to appearance. Indeed the appearance of an object can only be evaluated in-situ, taking into account simultaneously the light, the shape, the matter and the point of view. Ray-tracing algorithms, in particular Path-tracing, make it possible to reproduce all the light phenomena involved in geometric optics including global illumination.