ANALYSIS OF THE FACTORS AFFECTING 3D MODELS RESOLUTION – APPLICATION TO THE RECORDING OF VAULTS IN SANGALLO'S HOUSE

The paper will present the extraction of information from a laser scanning survey aimed to support historical studies on the Sangallo's house in Florence. In order to verify some study's hypothesis related to the building history and constructive techniques, high resolution models were needed. The meaning of "resolution" applied to 3D scanning will be briefly discussed stressing the difference between resolution and accuracy. Starting from the analysis of technical specifications of the used instruments, the expected performance of the model is described. The results obtained from acquired data are shown and the paper will conclude proposing some answers to the historian's questions.

[1]  Derek D. Lichti,et al.  CALIBRATION AND TESTING OF A TERRESTRIAL LASER SCANNER , 2000 .

[2]  Gabriele Guidi,et al.  TOF laser scanner characterization for low-range applications , 2007, Electronic Imaging.

[3]  Giordano Teza,et al.  Terrestrial Laser Scanner Resolution: Numerical Simulations and Experiments on Spatial Sampling Optimization , 2011, Remote. Sens..

[4]  Wolfgang Boehler,et al.  Investigating Laser Scanner Accuracy , 2005 .

[5]  T. Kersten,et al.  COMPARATIVE INVESTIGATIONS INTO THE ACCURACY BEHAVIOUR OF THE NEW GENERATION OF TERRESTRIAL LASER SCANNING SYSTEMS , 2007 .

[6]  A. Guarnieria,et al.  DIGITAL PHOTOGRAMMETRY AND TLS DATA FUSION APPLIED TO CULTURAL HERITAGE 3D MODELING , 2006 .

[7]  Gabriele Guidi,et al.  Low-cost characterization of 3D laser scanners , 2007, Electronic Imaging.

[8]  Antonia Teresa Spano,et al.  3d metric-modelling for knowledge and documentation of architectural structures (Royal Palace in Turin) , 2003 .

[9]  Antonio Vettore,et al.  Digital photogrammetry and TLS data fusion applied to Cultural Heritage 3D modeling. , 2006 .

[10]  Burcu Akinci,et al.  A Comparative Analysis of Depth-Discontinuity and Mixed-Pixel Detection Algorithms , 2007, Sixth International Conference on 3-D Digital Imaging and Modeling (3DIM 2007).

[11]  Thomas P. Kersten,et al.  Geometric Accuracy Investigations of the Latest Terrestrial Laser Scanning Systems , 2008 .

[12]  Giuseppe Marchini,et al.  Giuliano da Sangallo , 1942 .

[13]  Antonia Teresa Spano,et al.  Strutture voltate: rilievo laser scanning e modellazione delle geometrie , 2004 .

[14]  Geoff Jacobs.  Understanding Spot Size 3 DSCANNING , 2006 .