New quantities for the measurement of appearance
Short Name: BxDiff, Project Number: 18SIB03
New quantities and calibration solutions for measuring virtual product appearance in digital design
Appearance is increasing used as a differentiator in product quality and desirability. Previously accepted references, such as reflectance at single angular measurements, are becoming obsolete as branding depends on more complex appearance factors. Bidirectional Transmittance Distribution Function (BTDF) and Bidirectional scattering distribution function (BSSRDF) are computer graphics algorithms that describe visual effects caused by surfaces. Commercial bidirectional spectrophotometers are available for which NMIs could provide calibration services, although there’s no standard definitions for these quantities.
The project has defined BTDF and BSSRDF, developed primary facilities for their realisation traceable to the SI, and improved measurements of the Bidirectional Reflectance Distribution Function (BRDF). New calibration services will arise for spectrophotometers manufacturers and the industrial R&D market. A definition and realisation of BSSRDF will provide the first calibration solution, impacting industries such as cosmetics, automotive, plastics, and paper, as well as the rendering software market.
New metrological references for spectrophotometry will improve product quality control and virtual product representation in digital design.
Measurement Science and Technology
Metrologia
Metrologia
Metrologia
Review of Scientific Instruments
Metrologia
Journal of the Optical Society of America B
Applied Optics
Journal of Physics: Conference Series
Metrologia
Colour and Visual Computing Symposium 2022 (CVCS 2022)
2022 IEEE 12th International Conference Nanomaterials: Applications & Properties (NAP)
Electronic Imaging
Metrologia
Computer Graphics Forum
Optics Express
SPIE Proceeding, Modeling Aspects in Optical Metrology VII