Non-invasive techniques for diagnosis and authentication applied to cultural heritage

Laboratory for authentication and diagnosis of works of art – Valencia University (UV)

Artistic Diagnostic Multiband System

It is integrated by Infrared Reflectography, Digital Radiography, Hyperspectral Camera, and Multispectral-Multiband Camera (full spectrum camera). The Artistic Diagnostic Multiband System is based on obtaining various images at highly variable wavelengths in the electromagnetic spectrum. Mainly full-spectrum cameras are used, capable of taking photographs in the ultraviolet range (200-400nm), visible (400-700nm), and infrared (700-1100nm). These images are complemented by infrared reflectography (1100-2700nm) and radiographs. To obtain the various batteries of images that can later be hybridized, it is necessary to use different types of lamps (UV-Fluorescence filtered lamp); (Halogen-Elio-Lamp); Infrared Fluorescence lamp) and polarized visible light lamps. The lights and the camera must be filtered with specific filters for each sub-technique (UVF; UVR; VIS; IR; IRFC; IRF; IRT, and MSI). To calibrate the images and carry out hybridizations, it is also necessary to have a TP-MSI – Calibration Card and a Pigment Checker. The system is also controlled by a computer with all the software required. 

Hyperspectral Image Analysis

A hyperspectral camera collects an image with broad spectral information in each image pixel of the target. The hyperspectral camera can sample the camera wavelength region with hundreds of spectral samples. The spectrum saved from the target with continuous, high-wavelength sampling can be used to detect the imaged material or determine its physical and chemical properties.

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70 (in 2 groups)


30 minutes


Facultad de Geografía e Historia UV (Hall) - Av. de Blasco Ibáñez, 28, 46010 València