In the search of an ideal measurement geometry for effect coatings

0495060 - ÚTIA 2019 RIV US eng C - Conference Paper (international conference)
Filip, Jiří - Maile, F. J.
In the search of an ideal measurement geometry for effect coatings.
Proceedings of Pigment and Colour Science Forum 2018. Shrewsbury: SMITHER Rapra, 2018.
[Pigment and Color Science Forum. Boston (US), 03.10.2018-05.10.2018]
R&D Projects: GA ČR GA17-18407S
Institutional support: RVO:67985556
Keywords : effect coatings * appearance capturing * instrument * gonioreflectometer * measurement
OECD category: Automation and control systems
http://library.utia.cas.cz/separaty/2018/RO/filip-0495060.pdf

Visualization and analysis of effect coatings capturing, become highly important nowadays, when digital appearance content is necessary for facilitating quick communication of material appearance properties across various industries. The contribution of this paper is twofold. First, we discuss development of measurement geometries used in the industry, discuss limitations related to small instruments and finally compare three selected instruments in terms of luminance and color. Second, present an application of minimal sampling approach to reconstruct dense in-plane geometries based on a sparse set of measured geometries. As this approach relies on properties of a created PCA basis, we show how one can optimize sparse directions for specific pigment types or coating systems. As the span of our tested coatings is limited, we present this optimization method as an application showcase rather than a reference directions.
Permanent Link: http://hdl.handle.net/11104/0289402