Principles and standards

We finally got around writing up the 4D Research Lab approach on 3D visualisation. For the use of virtual reconstruction in the context of academic research, it is paramount to have a clear conception on both the modeling process as well as the final result, and communicate this as well as possible. Thorough research, responsibility, transparency and verification are key-concepts here. For the 4D Research Lab principles and standards, this amounts to:

  • A principle statement, in which we define the role of 3D visualisation in academia, our views on academic rigour, accessibility and sustainability. As for academic rigour, we build forth on “The London Charter for the computer-based visualization of cultural heritage” and the “Principles of Seville, international principles of virtual archaeology”.
  • A template, which is the application of the principle statement into a standard format for execution and documentation of 3D visualisation projects, and compiling reports.
  • A definition of our take on dealing with (un)certainty in 3D visualisation, accompanied with a 6 degree classification of certainty levels.

These standards and principles will be applied to all projects of the 4D Research Lab to ensure uniformity but also to create a database to be able to compare their performance. Surely, in due course we will find that we might improve on our project template or classification of (un)certainty. We do not consider them written in stone, but as a culmination of our experience so far, and they will surely be susceptible to future evolution into better versions of themselves.

Certainty Class

Variability

Indication

 

Example

Colour

Certain

None

Empirical

Scanned remains

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Quite certain

Low

Logical extension

Missing part of relatively complete
object

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Moderately certain

Limited

Close parallel

Same type, direct relation

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Not so certain

Considerable

General parallel

Same type, indirect relation

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Quite uncertain

High

Historic context

General stylistic traditions

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Very uncertain

Very high

Theoretical

Constructional argument

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LiDAR data visualization of a protohistoric defensive circuit in Southern Italy using GIS and Blender

DTM of the Muro Tenente defensive curcuit

Over the last decade, high resolution elevation data from LiDAR surveys has lead to much better understanding of archaeological features. 4D Research Lab coordinator and ACASA researcher Jitte Waagen has been experimenting with a number of visualization techniques to study the site of Muro Tenente in Apulia, Southern Italy. Muro Tenente is a vast defensive circuit dating to protohistoric (pre-Roman conquest) times that has been under investigation by archaeologists of the Vrije Universiteit Amsterdam.

Continue reading “LiDAR data visualization of a protohistoric defensive circuit in Southern Italy using GIS and Blender”