179 research outputs found
Focus-stacking system for 3D acquisition of sculptures and archaeological manufacts
In this paper we present the basic features of the Shape from Focus techniques and discuss the potentiality of its application in the 3D imaging of small sculptures and archaeological manufacts. A scanning system for optimizing the image stack acquisition in laboratory was assembled, while 3D reconstruction was done in ImageJ
Thermal imaging in the 3-5 micron range for precise localization of defects: Application on frescoes at the Sforza Castle
Infrared methods are of great importance in nondestructive testing of artworks, allowing a remote and wide-field imaging of interesting hidden features. Here we discuss a workflow based on thermal imaging in the mid infrared 3-5 micron range for the evaluation of subsurface defects in frescoes. Particular attention is payed to obtaining a high resolution (submillimetric) localization of the defects. The transfer of diagnostics techniques into real world applications, is discussed through the proof of concept of the proposed workflow on frescoes at the Sforza Castle (Milan, Italy)
Potencial germinativo de sementes de Bromus spp. do Banco Ativo de Germoplasma Forrageiras do Sul.
SIEPE
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