RTI Archives - Page 4 of 4 - Archaeology Blogs

The oldest erotic image in Estonia?

As one of the Estonian newspaper stated, it could be the oldest erotic image found in Estonia. It is an engraving on the wall of the old church in Lüllemäe. To get a better “reading” of the image we used RTI technique to document it. Here are some example screenshots below, interactive image can be viewed from Archaeovision’s website. Continue reading →

AHRC RTISAD project legacy – 18 months

Another six months have passed, and we have been as busy as ever using the RTISAD equipment and expertise. Dissemination In October Nicole Beale demonstrated Highlight Reflectance Transformation Imaging (RTI) at the Insight from Innovation conference, a three day archaeological ceramics event hosted by the Ceramics Research Group. More details on this blog post. In July Hembo Pagi and Eleonora Gandolfi gave a small presentation about ACRG at the Archaeology department in Perth, Australia. Continue reading →

Infrared RTI: Experimentation towards the development of multispectral RTI

Multispectral Imaging and Reflectance Transformation Imaging (RTI) are both useful imaging tools for the examination of antiquities and works of art. Previous research proved that RTI contributes significantly in prevention, investigation, examination, analysis and documentation, communication, dissemination and presentation of antiquities and works of art. 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 →

RTI shedding new light on Iberian Late Bronze Age stelae

During the first two weeks of September David Wheatley and myself, jointly with Leonardo García Sanjuán (University of Seville), have conducted fieldwork in Lora del Río, Seville (Spain). This fieldwork has been aimed at providing enhanced contextual data and visual recording of a Late Bronze Age decorated stela. As part of this work we have applied Reflectance Transformation Imaging (RTI) and the results are really amazing. RTI allows us to examine the surface of the stela interactively. Continue reading →

Demonstrating RTI for Ceramics

Yesterday I was demonstrating Highlight Reflectance Transformation Imaging (RTI) at the Insight from Innovation conference, a three day archaeological ceramics event hosted by the Ceramics Research Group, celebrating Emeritus Professor David Peacock’s contribution to archaeological artefact studies. I always find these kinds of events really exciting as they are often a fantastic opportunity to discuss with experts in their field the potential for RTI within the area that they work. Continue reading →

Infrared RTI

Last night i took the artwork from my wall and did my first infrared RTI. I would say it is even more exiting than normal RTI as you will see things you are not able to see with naked eye. Artwork I was taking photos of was not maybe the best to show the potential of IR RTI but I hope to try it it again with bigger light-source (I used converted Maglite Mini) and more challenging art-piece. Click on image to switch in between normal photo and IR RTI with specular enhancement filter. Continue reading →

Recent RTI work at the National Archives, Kew

Myself and Peter Wheeler spent a week working at the National Archives recording a number of different items using RTI. The work was a continuation of the DEDEFI project that Hembo Pagi completed in 2011. The majority of the work was from the 19th century Records of the Patent Office books specifically looking at Patents, Designs and Trade Marks Office and predecessor. In total we recorded 56 RTIs over the space of the week and we had time to also record a few Medieval seals for Adrian Ailes. Continue reading →

Multispectral world

Last weekend I spend some time with ACRG multispectral camera (converted Nikon D700). I got Hoya R72 infrared filter and walked on the fields of Western Estonia. I am very happy with results (see below). When it became dark outside I took the soldering iron and made two-led IR torch. This will be used for RTI testing later this week. One thing I found out already, you need quite long exposure time for a sharp image or/and much brighter light source. 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 →

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