Ricostruzione di una scena urbana 3D utilizzando VisualSfM.

Laura Inzerillo, Cettina Santagati, Francesco Di Paola

Abstract


Le tecniche di computer vision oggi danno la possibilità di costruire in maniera rapida e automatica modelli 3D dettagliati a partire da dataset fotografici. La comunità accademica ha visto una crescente attenzione alla ricostruzione 3D a scala urbana. Tra i vari strumenti oggi a disposizione spicca VisualSfM sviluppato dall’università di Washingthon e Google. Si tratta di una Interfaccia grafica open source strutturata in algoritmi dedicati alla tecnica di Structure from Motion (SfM). VisualSfM utilizza un estrattore di features chiamato SIFTGPU e un algoritmo di Bundle Adjustment Multicore. Inoltre è possibile ottenere una nuvola di punti densa utilizzando gli algoritmi CMVS/PMVS2. La finalità di questo studio è di verificare l’accuratezza metrica delle ricostruzioni attraverso l’utilizzo integrato di VisualSfM e CMVS/PMVS2. L’approccio quindi è stato testato su diversi dataset di una certa entità strutturati da collezioni fotografiche ragionate.

 

 


Parole chiave


Modellazione da immagini; Ricostruzione 3D; Scena urbana; Image-based modeling; 3D reconstruction; Urban Scene

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DOI: 10.6092/issn.1828-5961/3873

Copyright (c) 2013 Laura Inzerillo, Cettina Santagati, Francesco Di Paola

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Quest'opera è rilasciata con una licenza Creative Commons Attribuzione-Non commerciale 3.0 Unported.

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ISSN 1828-5961
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