Friday, 29 July 2016

Automatic Soil Texture Triangle

As the regular ATOR readers know, since some years we are trying to improve our laboratory's technologies in order to achieve a better metric classification of archaeological data and to expand our research interests in other archaeological sub-disciplines and mainly in archaeo-anthropology (as well as taphonomy and mummiology), archaeo-zoology, archaeo-bothany in general (and carpology and dendrochronology in particular), geoarchaeology and archaeometry. 
Soon we will start a series of post about our lab (aka ATLAB, Arc-Team LABoratory), which is evolving fast thanks to the effort of +Gianluca Fondriest  and +Mattia Segata.
Today I want to illustrate one of the tool we developed to speed up the geo-archaeological interpretation of the soil texture of the different layers during our excavations. This project (which is now in its early stage) starts from the need to use the Soil Texture Triangle to help archaeologists (especially the new diggers) in correctly interpreting the texture components using an objective method like the sedimentation test (because often new archaeologists are not comfortable with more subjective analysis like the Ribbon test or the squeeze-ball test). I leave the explanations of the operations to perform on the field for another post, while I want here to show the small software "geTexture", which +Giuseppe Naponiello developed to use automatically the Soil Texture Triangle from internet.
To illustrate how the application works, I recorded a short videotutorial:




The software is currently just in Italian, but we will translate it in English soon. The development is still active and this can be considered just a pre-release (it will be implemented also with a tutorial explaining how to perform the sedimentation test on the excavation). If you want to help us, on GitHub you can find the source code, while if you need already to use the software, here is the link where is is accessible. In the next days I will try to program also a small app for Android devices.

Stay tuned and have a nice day!

Notes

Some of the results of ATLAB can be seen in the article "Lo Scavo archeologico professionale, innovazioni e best practice mediante metodologie aperte e Open Research" (here in ResearchGate and here in Academia)

Monday, 25 July 2016

Arc-Team "Intervallo" 4

As you notice, ATOR post are getting fewer and fewer in summer time, due to our work on the field: time for a break!




In the meantime we will go on in collecting data and doing test for future post and articles, keeping our "open research" available for everybody!

Stay tuned!

Monday, 18 July 2016

QGIS - Reshape Features

This short Videotutorial shows you the effect of QGIS "Reshape Features" tool on vector lines.
If you have time to clean and smooth vector-lines manually, you can try that possibility.

If you want to keep up always with our latest videos, 
just subscribe our 

   



Wednesday, 6 July 2016

Arc-Team: Open your Mind and share your Knowledge

Arc-Team Archaeology was founded in 2004 as a way to open Archaeology to people through a free & open approach.

Since the first day we have shared our experiences with this type of research with our friends and colleagues.

We are still searching for new horizons and there is no better way than being able to open our mind and share our knowledge.

Let's go on collaborating and sharing our results, our techniques and our experiences!


Monday, 13 June 2016

St. Anthony's day

June, in Padua, is the "mese antoniano" (The month dedicated to St. Anthony) and the day 13 June is the day in which the Saint was born and that the Catholic Church chosed to celebrate him.
Exactly around this period, a couple of years ago (10 June 2014), we presented in Padua the Forensic Facial Reconstruction of the Saint [1], which was performed during the preparation of the open source exhibition "Facce. I molti volti della storia umana" ("Faces. The many aspects of human history") [2].
Today, with a big delay (sorry, too few time...) I'll go on sharing, with open source licenses, the material we produced for the exhibition and, considering the recurrence (13 June), I'll upload some media regarding the Forensic Facial Reconstruction (FFR) of St. Anthony.
First of all, here is the image of the final model, which is already available on Wikimedia Commons. 

FFR of St. Anthony (final model)

The credit for this image are (in order of work-flow): Luca Bezzi (Arc-Team) and Nicola Carrara (Museum of Anthropology of the University of Padua) for the 3D scanning of the cranial cast of the Saint; Cicero Moraes (Arc-Team) for the main work of digital Forensic Facial Reconstruction; Padre Luciano Bertazzo (Center for St. Anthoni Studies) for the historical validation of the final model. Moreover the project relies on on the previous work of the artist Roberto Cremesini, who produced in 1985 the bronze cast of the skull and the jaw of St. Anthony, used for the digital reconstruction (2014) and on the research directed by Prof. Vito Teribile Wiel Marin, who directed the anthropological study of the skeletal remains in 1981 (with particular attention to the work of Prof. Gino Fornaciari, Francesco Mallegni and Giorgio Ragagnini).

Then I report here the complete presentation we did during the "Giugno Antoniano", as until now in ATOR we just published the second half of the slides (by Cicero Moraes) and never the first one (regarding the digital scanning of the bronze cast done by Roberto Cremesini).
Here below is the presentation, which can be view interactively directly online:


 


Since for some people (due to the default browser) there could be some minor visualization erros, I also recorded a vdeo and uploaded it on our YouTube channel:


Have a nice day!

PS

Since the overall presentation is pretty long, I upload separately here the 3 videos embedded in the slides:

1) The FFR of Alberto da Trento


2) The Forensic Facial Reconstruction process



3) The Forensic Facial Reconstruction of St. Anthony



[1]
ATOR: 1, 2, 3

[2]
AOTR: 1, 2, 3, 4, 5, 6, 7

Bibliography

[1] 
Il Volto del Santo. La ricostruzione facciale forense di Sant'Antonio di Padova (ResearchGate, Academia)

[2] 
“FACCE. I molti volti della storia umana”: progettare una mostra Open Source basata sulla Computer Vision (ResearchGate, Academia); 
"Facce. I molti volti della storia umana" Una mostra Open Source (ResearchGate, Academia);
"Facce. I molti volti della storia umana". Una mostra che racconta (ResearchGate, Academia)

Tuesday, 31 May 2016

WW1: High Alpine Survey Data - Work in Progress

Last summer we've had the possibility to survey along the first Italian front-line of WW1 on the ridge between the the two strategically important summits of Mt. Quaternà (2.503m) an Col Rosson (2.305m).
(Commissioned by the Algudnei-Mueseum in Dosoledo) 
They are situated in the north of the Italian region of Veneto, near to the Austrian and Tyrolean border.

The project area. Pay attention to the trenches in the middleground.
It took several weeks to document an unexpected amount of military remains built between May 1915 and November 1917.
Trenches at the foot of Col Rosson

The central part of our approach was an intensive and very accurate DGPS-survey of every visible structure on the surface, attended by sfm-documentation of objects of special interest. Also underground structures, first of all caverns of different typology, were recorded with 3d-pointclouds.
Commemorative inscription of a machine-gun detachment.

Furthermore we've made several thousands of pictures with recorded position of the photographer and viewing direction.
Overview of the survey results

At this moment we've competed the postprocessing of the approx. 80.000 GPS points, prising out 4.194 features with an individual ID number and a description in English, Italian and German language.

High density of remains around of Mt. Rosson.
The next step will be the archaeological interpretation of the results, incorporating documents and maps of different military archives.
First and second Italian line.

The fieldwork was crucially supported by our colleagues Michele Mazzurana and Gianluca Fondriest.
The whole project would not have been possible without the direction of Daniela Zambelli and the confidence of Algudnei's director Arrigo De Martin Mattiò.
All images in this article are free, following the terms of CC-BY-4.0 Creator: Arc-Team Archaeology

OpenJUMP GIS: from a local (cartesyan) system to a projeced coordinate system

Sometimes we are asked why (after 11 years) we still keep OpenJUMP in ArcheOS, since QGIS became such a functional GIS  and could cover all the feature of the other similar software. The main reason for such a choice are two:

1. QGIS developed very fast and can happen that some tools are still buggy when released (like for the newest georeferencer version)

2. the software (Polygontool) our friend +Szabolcs Köllö (aka Keulemaster) developed for us, in order to handle big data in archaeological surveys, is strictly connected with OpenJUMP


The GIS OpenJUMP

Today I just finished to package for (ArcheOS Hypatia) the last version of this GIS (OpenJUMP 1.9.1) and to upload it in our experimental repository (soon we share it), so I prepared a new videotutorial to illustrate one of the operation in which OpenJUMP is still useful, since the similar tool of QGIS are sometimes buggy: the recovering of old excavation data from a local (cartesian) coordinate system to a projected coordinate system (e.g. in the videotutorial, ETRS89 / UTM zone 32 N).


I hope this can be useful. Have a nice day!
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