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Update on the Hoa Hakananaiā€™a Statue

In 2012 ACRG members, James Miles and Hembo Pagi,Ā completed a series of RTI captures and a photogrammetry model of the Easter Island Statue, Hoa Hakananai’a, which is currently housed in the British Museum. Since then, in collaboration with Mike Pitts, we have examined the results of these RTI files and compared them with the photogrammetry model. A brief discussion of this work can be seen in a previous blog post. Continue reading →

Photogrammetry

During the 2013 excavation season whilst completing a series of laser scan models of the site I also completed a number of photogrammetry captures of specific artefacts. The following are a few examples of the work completed and allows for a virtual record that can be used by archaeologists off site within their analysis of these artefacts. The Roman architectural fragments illustrated here are currently being studied by Dottssa Eleonora Gasparini through this process. Continue reading →

Laser Scanning at Portus

In October of 2012 myself and Gareth Beale were in Portus collecting a series of datasets, these included a series of high resolution 360 panoramas around the site which Gareth has processed and a full laser scan model of the Palazzo Imperiale. The panoramas have been explained in a previous post by Gareth and after several months of processing the data, I am able to present some of the completed work through this blog. Continue reading →

The voice of Easter Island in the British Museum

Over the past year myself, Hembo Pagi and Graeme Earl from the ACRG have been working with Mike Pitts, editor of the British Archaeology Journal, on the Hoa Hakananai’a statue at the British Museum. The work included the production of a virtual model, through photogrammetry and a series of Reflectance Transformation Images to study the petroglyphs found on the statue. Continue reading →

How to fix incorrectly aligned RTI images

Often, when capturing a RTI data set, especially when using a cable, the images captured can be out of place, resulting in an incomplete data set. The following is a how to guide to fix this problem using Photoshop. The first step is to load all of the files into Photoshop using the correct tool. This is done by clicking the file tab, thenĀ Scripts and then “Load files into Stack”. Continue reading →