ARPENTEUR, a simple tool for archaeological data management, laser scanning and teaching
Bibliographic record
Abstract
This presentation introduce two applications of digital photogrammetry in an archaeological context: the first one focuses on data survey and management and the second one deals with complex surface definition and laser scanning. These two applications are made with the web based photogrammetric software, ARPENTEUR system, (Architectural PhotogrammEtry Network Tool for EdUcation and Research) available at http://www.arpenteur.net. ARPENTEUR is a set of tools developed in MAP laboratory dedicated to archaeological survey and also used to teach photogrammetry After a brief presentation of the ARPENTEUR project we will focus on a project in medieval archaeology in collaboration with the “Dipartimento di Studi storici e Geografici” of the University of Florence (Italy) who are responsible for the archaeological research. The case study is the Castle of Shawbak, traditionally known in historical reports as the “Crac de Montréal” in Jordan. The second application combines the laser scanning techniques and close range photogrammetry. One of the main objectives of architectural and patrimonial survey is to provide a precise documentation of the status quo of the surveyed objects (monuments, buildings, archaeological object and sites) for preservation and protection, for scientific studies and restoration purposes, for the presentation to the general public. Complex object, not planar or with ornaments and decorations require high-density and high-resolution spatial data. The laser scanning techniques and close range photogrammetry can offer two complementary sets of instruments and technologies able to answer the specific requirements of architectural and archaeological surveys. The second case study is about the ancient water supply system of Petra, Jordan. Given the inaccessible nature of the site, a hybrid survey method was relevant. This case study is a part of a project in collaboration with Istituto di Geodinamica e Sedimentologia e Centro Studi Archeologici “CE.S.AR”, Università degli Studi di Urbino, Italy and ITABC laboratory, (Istituto per le Tecnologie Applicate ai Beni Culturali), Consiglio Nazionale delle Ricerche, Rome, Italy).
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.007 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.003 | 0.005 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.167 | 0.095 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".