Wednesday, 9 November 2011

More info about the archaeological automatic drawing technique

Yesterday I was looking the statistics regarding this blog and I noticed that one of the most popular post is the one about the automatic drawing technique we (Alessandro Bezzi, Simone Cavalieri and me) proposed some years ago. I noticed as well that i forgot to upload in Arc-Team's open library the presentation we did in Foggia (for ArcheoFOSS 5) about this argument (sorry, just in Italian by now...). Now the link is active and you can download the presentation here, or in Academia.edu.
As the slides are in Italian I summarize here the experiment we did in that occasion. We divided archaeological finds in four classes, looking which kind of documentation normally they need.

1) photographic documentation (e.g coins)
2) simple drawing (e.g. flint)
3) drawing + shading (e.g. normal artefacts)
4) drawing + shading + section (e.g. pottery)


Then we developed a five steps techniques to get the appropriate documentation for each class in a automatic or semi-automatic way (using only FLOSS, of course):


  1. rectified photo (GRASS - efoto)
  2. rectified photo + vector drawing (GRASS - efoto -OpenJUMP)
  3. rectified photo + vector drawing + shading (GRASS - efoto -OpenJUMP - stippler -  Inkscape)
  4. rectified photo + vector drawing + shading + section (GRASS - efoto -OpenJUMP - stippler - Inkscape - hardware)


Here is an image with the original picture of the archaeological finds we used as test and the final layout.


All the finds come from the excavation in the church of S. Andrea in Storo (TN - Italy) and gave us positive results (I just used to many points in stippler for the drawing of the pottery... anyway it is now easy to change this parameter with the new python interface Alessandro developed).
In the slides you will also find our first test on Lena picture:


The image has nothing to do with sexism, she is just o kind of standard since 70's for raster images tests... by the way she is beautiful :)

2016-04-28 Post updated

In 2010 we wrote an article (in Italian) about this technique:

"Proposta per un metodo informatizzato di disegno archeologico" (here in ResearchGate and here in Academia).
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