Laser scanning in pompeian city wall a comparative study of accuracy of the drawings from 1930s to 40s

Y. Hori, O. Ajioka, A. Hanghai

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)


This paper aims to compare between the drawings in 1930s and 40s and the result of our laser scanning from 2005 to 2007 and analyze the causes of their failures. In the 19th century, Mazois makes no difference between drawings of measurement, reconstructions, and his image of the ancient Roman city. Maiuri, who employ professional surveyors, begun to measure the ruins using scientific methodologies in 1930s. The mistakes of Maiuri's surveyor have been made from the beginning and surveyor's interpretation of the result from contradictory measurements was based on a certain prejudice in a wrong way. Echebach, who applied the aerial survey in 1940s to create the first general map of Pompeii, may draw the map by the simple way in which the street line may perhaps be traced from an aerial photograph. Consequentially his map includes considerable divergence and rotation. However the city wall in Eschebach's revised map was almost exact to the distance along two main streets with a possible error 1-2 m either way. In our own time, archaeological inquiry has profited from using recently developed scientific methodologies including laser scanning and satellite measuring techniques, GPS as well as computer measuring to determine global position. Despite the thoroughness of these procedures and the obvious care in mensuration with which many of drawings were produced, it would have been difficult, if not impossible, to maintain a high degree of accuracy over long distances, because the prejudice or the careless mistakes would exist in the mind of surveyors.

Original languageEnglish
JournalInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Issue number5W47
Publication statusPublished - 2007
Event2nd ISPRS International Workshop on Virtual Reconstruction and Visualization of Complex Architectures, 3D-ARCH 2007 - Zurich, Switzerland
Duration: Jul 12 2007Jul 13 2007

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Geography, Planning and Development


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