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Institutions, Page 51

Canon Vs Nikon

I was recently asked, ‘What DSLR camera is better for RTI data capture? ‘Canon or Nikon?’ The answer is like Godzilla Vs King Kong. Its gonna be a good fight. The Short Answer is that either camera will work. In the hands of a professional photographer, they are both very similar.

Experimental Microscopic RTI Dome

by Guest Blogger Eleni Kotoula, PhD student, University of Southampton, Archaeological Computing Research group Application of normal and microscopic RTI to artifacts derived from the Hellenistic-classical Derveni cemetery in Macedonia, Greece, demonstrates RTI’s contribution towards prevention, investigation, documentation and communication.

Announcing brand new CHI website!

We recently unveiled a brand new website at It has been in the works for a while (these projects always take longer than you want them to…) There is a lot more information about our current work, and we hope you will find that the new menus and navigation make it easier to find things you are looking for. There are a few things I would like to highlight.

An Evaluation of Decorative Techniques on a Red-Figure Attic Vase from the Worcester Art Museum

In July we were back at the Worcester Art Museum Conservation lab to give a training in our IMLS sponsored 21st Century Museum Professionals program.  The Worcester conservation team was the first conservation lab to see the potential for Reflectance Transformation Imaging for art conservation back in 2006.  We built a lighting array for them, and delivered it and a training in May of 2008. It was great to be back with that team and to see a bit of what they have been up to.

CGI research at Portus

The AHRC Portus Project is partly focussed on the application and evaluation of digital technologies, and in particular the production of computer graphic models. Specifically we implement Computer Graphic Imagery following geophysical assessment, during the excavation, in the analysis of excavated and surveyed archaeology, and in the representation and debate of interpretations.


The Archaeological Recording Kit (ARK) written by L-P Archaeology has been further updated on site by Henriette and Hembo. This is the centre of all our archaeological data management processes. All data gathered on site are ingested and made available on our on-site wireless network. ARK looks after all our many photographs, the raw data from the geophysics and surveys, processed plans and sections and the database of all finds.

Visualising Portus

At a site as large and complex as Portus, it is often hard to work out the building phases of individual structures, or get a feel for the original landscape. The AHRC portus Project is therefore employing a range of visualisation tools to interpret and present the site as it is now and as we believe it was in the past. Computer graphics make the site easier to understand by presenting archaeological findings in an easily comprehensible, but historically accurate format.

Polynomial Texture Mapping at Portus

Polynomial Texture Mapping (PTM) has been employed throughout the AHRC Portus Project. It is a technique that enables the production of detailed surface models of particular artefacts from a series of digital photographs (Malzbender et al 2001; Mudge et al 2005).

Reconstruction Methodology part five – Ships and Boats

E. Ships and Boats Archaeological evidence has greatly enhanced our knowledge of Roman shipping in recent years. There are hundreds of shipwrecks from the Roman period (Parker 1992), which have done much to develop our understanding of hull construction and to illuminate some of the fundamental points of shipbuilding and sailing, such as mast position.

Reconstruction Methodology part four – Portscape

B. Colour Scheme Excavations beneath the Basilica Portuense by the Soprintendenza di Beni Archeologici di Ostia (Dottssa Lidia Paroli) revealed a sequence of buildings going back to the mid 1st century AD. The outer faces of these brick-faced buildings were covered with reddish, orangeish and yellowish plaster. On this basis it has been assumed that, apart from the temple complex, most buildings would have been decorated in one colour or another.

Reconstruction Methodology

The computer models of Portus produced prior to the start of the AHRC Portus Project were based upon the interpretation of standing structural remains uncovered by successive archaeologists, particularly Lanciani (1868), Lugli (Lugli & Filibeck 1935) and Testaguzza (1970) as well as more recent topographic work undertaken by the Soprintendenza di Beni Archeologici di Ostia, and most the survey work undertaken by the Universities of Southampton and Cambridge in association with the British...