Proceedings of the CIPA WG 6 International Workshop on Scanning for Cultural Heritage Recording

Böhler, Wolfgang

Bibliographic data

Monograph

Persistent identifier:: 830281592

Title:: Proceedings of the CIPA WG 6 International Workshop on Scanning for Cultural Heritage Recording

Sub title:: September, 1 - 2, 2002, Corfu, Greece

Scope:: 159 Seiten

Year of publication:: 2002

Place of publication:: Thessaloniki

Publisher of the original:: Publ. ZITI

Identifier (digital):: 830281592

Illustration:: Illustrationen

Signature of the source:: T 15 B 1303

Language:: English

Additional Notes:: Literaturangaben

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Böhler, Wolfgang

Corporations:: International Workshop on Scanning for Cultural Heritage Recording, 2002, Kerkira; ICOMOS/ISPRS Committee for Documentation of Cultural Heritage

Adapter:: International Workshop on Scanning for Cultural Heritage Recording, 2002, Kerkira; ICOMOS/ISPRS Committee for Documentation of Cultural Heritage

Founder of work:: International Workshop on Scanning for Cultural Heritage Recording, 2002, Kerkira; ICOMOS/ISPRS Committee for Documentation of Cultural Heritage

Other corporate:: International Workshop on Scanning for Cultural Heritage Recording, 2002, Kerkira; ICOMOS/ISPRS Committee for Documentation of Cultural Heritage

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2015

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: 5. PROJECTS AND EXPERIENCES

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: DIGITAL PHOTOGRAMMETRY AND LASER SCANNING IN SURVEYING THE "NYMPHAEA" IN POMPEII. Gabriele Bitelli, Alessandro Capra, Antonio Zanutta

Document type:: Monograph

Structure type:: Chapter

DIGITAL PHOTOGRAMMETRY AND LASER SCANNING IN SURVEYING THE “NYMPHAEA” IN POMPEII Gabriele Bitelli a , Alessandro Capra b , Antonio Zanutta a a DISTART, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy - (gabriele.bitelli, antonio.zanutta)@mail.ing.unibo.it b DAU - Polytechnic of Bari, Via Orabona 4, 70125 Bari, Italy - alessandro.capra@mail.ing.unibo.it Commission V KEY WORDS: Cultural Heritage, Close Range, Digital Photogrammetry, Laser Scanning, Surface Modelling ABSTRACT: A study currently carried out with archaeologists from Bologna University involves the restitution of the nymphaea existing in Pompeii (Naples, Italy); this task requires a long work using classical photogrammetric techniques. Different solutions were tested using digital photogrammetric systems, in terms of data acquisition (e.g. semi-metric vs digital cameras, Cyclop system), data processing (e.g. automated surface model reconstruction, monoscopic or stereoscopic plotting) and representation (e.g. orthophotos, adoption of cartographic projections), but this kind of object could be an interesting application also for laser scanning techniques. The decoration of nymphaea apsidal and front walls is particular rich in some cases, and deformation of surfaces are sometimes well evident, so the integration of the opportunities provided by close range digital photogrammetry and laser scanning could be a topic of interest. A multi-station laser scanner survey could permit to complete the planned activity in shorter time and with an adequate accuracy, with the production of a complete 3D model; this solution has been tested through the comparison with digital photogrammetric survey in terms of precision and reliability in restitution of the object size and shape, with the final aim to understand what kind of solution better supports the study and the accurate metrical documentation of the nymphaea. The paper presents the test currently carried out on two nymphaea. 1. INTRODUCTION The research here described regards a project started in 1999, within a collaboration established between the University of Bologna and the Archaeological Superintendence of Pompeii. The project pointed out originally the study, restoration and valorisation of the Centenary Insula (IX,8), regarding an interesting house known as “of the Centenary” that would be scientifically recuperated and made available (Scagliarini Corlaita and Coralini, 2002). In the frame of this project was successively activated a rigorous survey by digital photogrammetry of the most significant nymphaea of Pompeii. The nymphaea are elements of remarkable archaeological and also artistic value. Important houses of Pompeii were decorated with nymphaea. Like other structural elements they showed the social and economical status of house proprietary, so the pictures on walls and apsidal and the material used were sometimes particularly fine, giving artistic value to the objects. In Pompeii area about 15 examples of nymphaea are known, characterised by different geometry and structure. During 1999 and 2001 campaigns the surveys of six nymphaea were carried out, located in Centenary house, Grand Duke house, Small And Big Fountain houses, Wounded Bear’s house, Scientist’s house. The nymphaea have been chosen with the aim to furnish almost an example of every architectural and decorative typology, so a preliminary phase was planned to study surveying and representation methodology appropriate for each specific typology based on the geometrical characteristics of nymphaea. The research in those phase regarded the survey and restitution through the utilisation of digital photogrammetric methods, evaluating alternative techniques by means of direct photogrammetric comparisons (Bitelli et al., 2001). The research is not concluded and in 2002 campaign further processing and data acquisition for other nymphaea is planned. The photogrammetric restitution produced 3D object model and raster products. An high degree of detail was maintained in the image acquisition and plotting process, trying to preserve the richness of nymphaea apsidal and walls decoration in the graphical representation. Even the deformation of nymphaea surfaces are in some cases well evident. In order to verify the reliability of different techniques of investigation with respect of richness and detail object description and eventual deformation detection, the integration of different close range digital photogrammetry techniques and laser scanning was planned. The latter is certainly an emerging technique for industrial and architectural applications, as well as in the field of cultural heritage and virtual reality based museums (Beraldin et al., 1999; Bôhler et al., 2001; Monti et al., 2001). A multi-station laser scanner survey could permit to complete the planned activity in shorter time and with an adequate accuracy, with the production of a complete 3D model. The solution has been tested through the comparison with digital photogrammetric survey in terms of precision and reliability in restitution of the object size and shape. The different techniques were pointed out to understand which solution could better supports the study and the accurate metrical documentation of the nymphaea in respect to geometrical and artistic typology. The current work will be briefly described in the next paragraphs, taking as example the survey of the nymphaea of the “House of the Big Fountain” and of the “House of the Small Fountain” (fig.l). - 115 -

Access restriction

Copyright

fullscreen: Proceedings of the CIPA WG 6 International Workshop on Scanning for Cultural Heritage Recording

Monograph

Chapter

Chapter

Table of contents

Cite and reuse

Monograph

Chapter

Image

Image fragment

Citation links

Citation recommendation