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handle: 11380/1127728
This paper summarize the achievements of an experimental meeting session held within the 61th SIFET national meeting (Lecce, Italy, 6-10 June 2016). The session named “benchmark” introduced results achieved by users in the processing of a shared dataset, composed of images acquired from unmanned aerial vehicle (UAV), to reconstruct the three-dimensional properties of cultural heritage. Data, results provided by authors and validation strategies of outcomes from the photogrammetric processing of UAV images highlighted different level of spatial accuracy by the products. Despite the good level of automation introduced by the structure from motion approach to data processing, the users detected differences at cm-level in the accuracy of results after the use of available software. ITA: Il lavoro riassume i risultati ottenuti da diversi partecipanti alla sessione “benchmark” - uso di immagini UAV per la ricostruzione 3D: esperienze condivise tra utenti, svoltasi nell’ambito del 61° convegno nazionale SIFET (Lecce 8-10 giugno 2016). L’iniziativa ha previsto l’elaborazione di un dataset comune, rappresentato da immagini acquisite tramite aeromobile a pilotaggio remoto, ai fini della ricostruzione tridimensionale di ambienti di pregio storico e culturale. Tra gli obiettivi principali vi era quello di confrontare i diversi approcci seguiti dai partecipanti nell’elaborazione dei dati, mettendo in luce le diverse potenzialità dei software disponibili, le possibili strategie relative all’uso dei punti di controllo e il livello di accuratezza raggiunto. Nonostante l’utilizzo di procedure consolidate nell’analisi dei dati, i risultati riportati dagli utenti evidenziano significative differenze nei livelli di accuratezza, verificabili dopo il confronto con i punti di controllo e con la nuvola di punti ottenuta con scansione laser terrestre.
Benchmark session, UAV photogrammetry, camera self-calibration, action camera, frame camera
Benchmark session, UAV photogrammetry, camera self-calibration, action camera, frame camera
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