Study on the currently accessible technology for 3D printing of color objects from the reproduction quality standpoint
Robert Sitnik , Grzegorz Mączkowski , Jakub Krzesłowski , Tomasz Gadziński
AbstractIn this paper a new 3D measurement system along with the study on 3D printing technology is presented from the perspective of quality of reproduction. In the first part of the paper the 3DMADMAC SPECTRAL system which integrates 3D shape with additional color and angular reflectance measurement capabilities is presented. The shape measurement system is based on structured light projection with the use of a DLP projector. The 3D shape measurement method is based on sinusoidal fringes and Gray codes projection. Color is being measured using multispectral images with a set of interference filters to separate spectral channels. Additionally the set up includes an array of compact light sources for measuring angular reflectance based on image analysis and 3D data processing. All three components of the integrated system use the same grayscale camera as a detector. The purpose of the system is to obtain complete information about shape, color and reflectance characteristic of measured surface, especially for cultural heritage objects - in order to use their models in 3D copying application. In the second part of the paper the 3D printing technology will be tested on artificial objects as well as on real measured cultural heritage ones. Testing on artificial objects allows to assess measurement and color accuracy of reproduction by selected 3D printing technology. Testing on real objects sheds some light on how current 3D printing technology can be applied into cultural heritage.
|Publication size in sheets||0.3|
|Book||Pezzati Luca, Salimbeni Renzo (eds.): Optics for Arts, Architecture, and Archaeology , 2011, SPIE, [0277-786X]|
|Keywords in English||3D shape measurement, structured light, multispectral imaging, BRDF, 3D printing|
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