3D Digitization of a Large Model of Imperial Rome

Abstract

This paper describes 3D acquisition and modeling of the "Plastico di Roma antica ", a large plaster-of-Paris model of imperial Rome (16x17 meters) created in the last century. Its overall size demands an acquisition approach typical of large structures, but it is also characterized by extremely tiny details, typical of small objects: houses are a few centimeters high; their doors, windows, etc. are smaller than 1 cm. The approach followed to resolve this "contradiction " is described. The result is a huge but precise 3D model created by using a special metrology Laser Radar. We give an account of the procedures of reorienting the large point clouds obtained after each acquisition step (50-60 million points) into a single reference system by means of measuring fixed redundant reference points. Finally we show how the data set can be properly divided into 2x2 meters sub-areas for allowing data merging and mesh editing.This paper describes 3D acquisition and modeling of the "Plastico di Roma antica", a large plaster-of-Paris model of imperial Rome (16x17 meters) created in the last century. Its overall size demands an acquisition approach typical of large structures, but it is also characterized by extremely tiny details, typical of small objects: houses are a few centimeters high; their doors, windows, etc. are smaller than 1 cm. The approach followed to resolve this "contradiction" is described. The result is a huge but precise 3D model created by using a special metrology Laser Radar. We give an account of the procedures of reorienting the large point clouds obtained after each acquisition step (50-60 million points) into a single reference system by means of measuring fixed redundant reference points. Finally we show how the data set can be properly divided into 2x2 meters sub-areas for allowing data merging and mesh editing

Contemporary technologies for 3D digitization of Maori and Pacific Island artifacts

“…The modulated light scanner was supplemented by a triangulation scanner, used to scan some of the more detailed parts of the model. The postprocessing (data merging and mesh editing) was completed using 2 3 2 m model subsections (Guidi et al, 2005).…”

“…Figure 5. Model of ancient Rome (Guidi et al, 2005). [Color figure can be viewed in the online issue, which is available at www.…”

1001 Acquisition viewpoints: efficient and versatile view-dependent modeling of real-world scenes

“…Such triangulation laser rangefinding produces high resolution depth maps [15,9] but at a large time cost due to sequential scanning. Moreover, the laser stripe degrades quickly with the distance to the acquired surface, which requires that the acquisition device be kept close to the scanned surface or to use laser source power levels that are not eye safe.…”

“…A third approach for dense depth acquisition is timeof-flight laser rangefinding [32,28,9]. Quality depth maps are acquired in minutes [5,24].…”

A 3d Based Approach to the Architectural Study of the Roman Bath at the Sanctuary of Apollo Hylates (Kourion, Cyprus).

“…The version 2.0 has been realised using a procedural modelling approach. The city Plastico, located in the Museum of Roman Civilisation in Rome, was previously 3D scanned (Guidi et al, 2005) and its digital version was used as base for the positioning of each building.…”