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Ultraviolet RTI

A painted and incised ceramic vessel was used as case study in an attempt to evaluate the efficiency of Reflected UV (UVR) RTI and UV induced visible fluorescence (UVF) RTI. The Highlight RTI data capture took place at the archaeological imaging laboratory of the University of Southampton, using a UV-VIS-IR modified DSLR camera, adequate filters and lighting. The reflected UV-RTI datasets were captured with a UV transmitter and an IR barrier filter. Continue reading →

Papyrus RTI case study

The Derveni tombs discovered in 1962 close to Thessaloniki in North Greece are considered one of the most significant archaeological sites in northern Greece because of their numerous rich grave offerings and their important location in the ancient Mygdonian city of Lete, on the pass of Via Egnatia. The cemetery comprises seven graves, and according to the excavation publication dates to 320–290 BC. Continue reading →

Icons RTI case study

Icons: Production  techniques and examination methodology Icon or ikon from Greek eikōn is a representation of a sacred or sanctified Christian personage used in religious worship in the Russian or Greek Orthodox Church. The production of icons has been described by the monk Dionisios ek Fourna in 1728-1733. Icons are typically painted on a wooden panel with the egg tempera painting technique, over a layer of gypsum and glue (preparation layer). Continue reading →

Transmitted RTI

Following our successful experimentation with microscopic RTI and multispectral RTI, we develop a transmitted RTI methodology, inspired by transmitted photography, a set-up proposed for conservation documentation of translucent materials, canvas paintings, mounded papyri, photographic material, and works of art on paper or archival material. The transmitted RTI provides an enhanced RTI visualisation, complementary to reflected visible and infrared RTI. Continue reading →

FCIR Imaging

The False Colour Infrared (FCIR) is based on the different response of materials in infrared radiation and combines visible RGB colour and infrared imaging. It has been used for materials differentiation and characterization, especially for painted works of art and pigments research. Continue reading →

RTI & Numismatics Conservation

RTI is considered to be a powerful documentation tool for cultural heritage applications. Previous work in the field of RTI in numismatic studies demonstrated advantages in identification and documentation issues in comparison to traditional approaches, as well as improved communication and dissemination abilities (Mudge et al. 2005; Gabov and Bevan 2011). Continue reading →

Microscopic RTI

To fully appreciate the application of RTI in conservation practice, one should take into consideration conservation needs for limited human-object interaction, high quality and affordable visual analysis, microscopic levels of detail and advanced documentation. There is no doubt that methodological developments are necessary in order to meet those needs. One of the most obvious of these, even from the earlier stages of our research, was the microscopic level of detail required for conservation. Continue reading →