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Sökning: WFRF:(Palombi Lorenzo)

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1.
  • Grönlund, Rasmus, et al. (författare)
  • Laser-Induced Fluorescence for Assessment of Cultural Heritage
  • 2006
  • Konferensbidrag (refereegranskat)abstract
    • Remote imaging measurements of laser-induced fluorescence have been performed, with application towards cultural heritage. Measurement campaigns have been performed at, e.g., the Coliseum in Rome. Differences in fluorescence spectra from different points were found and images corresponding to different features could be produced for thematic mapping.
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2.
  • Grönlund, Rasmus, et al. (författare)
  • Laser-induced fluorescence imaging for studies of cultural heritage - art. no. 66180P
  • 2007
  • Ingår i: O3A: Optics for Arts, Architecture, and Archaeology. - SPIE--The International Society for Optical Engineering. - 0277-786X. - 9780819467607 ; 6618, s. P6180-P6180
  • Konferensbidrag (refereegranskat)abstract
    • Laser-induced fluorescence for remote imaging of historical monuments is an established technique, which in this work has been used in measurement campaigns at the Coliseum and the Baptistery of San Giovanni in Laterano in Rome, Italy. The results presented here are examples that show that biodeteriogens can be monitored and that. materials can be identified. Also, cleaned and soiled areas on the stone can be localized and differences between soiling can be found, which may be useful in the sustainable conservation for mapping and evaluation.
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3.
  • Hällström, Jenny, et al. (författare)
  • Documentation of soiled and biodeteriorated facades: a case study on the Coliseum, Rome, using hyperspectral imaging fluorescence lidars
  • 2009
  • Ingår i: Journal of Cultural Heritage. - Elsevier. - 1296-2074. ; 10:1, s. 106-115
  • Tidskriftsartikel (refereegranskat)abstract
    • Non-invasive documentation of historic façades with fluorescence lidar techniques can provide helpful information for the cultural heritage sector, especially when large areas outdoors are to be examined. This paper presents a case study on the Coliseum, Rome, where both cleaned and heavily soiled areas of the monument were scanned and analysed with two fluorescence lidar systems. Biodeterioration processes have also been addressed during the experiment with the aim of assessing the colonisation extent on selected areas of the monument. Results show the usefulness of a mobile fluorescence lidar system for documentation and survey of large surfaces with complex conditions without limiting the public access to the monument.
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4.
  • Hällström, Jenny, et al. (författare)
  • Remote fluorescence lidar imaging of monuments: the Coliseum and the Lateran Baptistery in Rome
  • 2008
  • Ingår i: LASERS IN THE CONSERVATION OF ARTWORKS. - Taylor & Francis. - 978-0-415-47596-9 ; s. 169-175
  • Konferensbidrag (refereegranskat)abstract
    • On site remote laser-induced fluorescence measurements have been performed with application towards non-movable objects. This paper describes the application of non-invasive hyperspectral fluorescence imaging to two masonry monuments, the Coliseum and the Lateran Baptistery in Rome, during a joint Italian-Swedish experiment. The mobile systems of Lund Institute of Technology, Sweden, and CNR-IFAC, Italy, were placed at the distance of 18-65 m from the façades for the documentation and characterization of surfaces, including materials, protective treatments, biodeteriogens and historic layers.
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5.
  • Palombi, Lorenzo, et al. (författare)
  • Hyperspectral fluorescence lidar imaging at the Colosseum, Rome
  • 2008
  • Ingår i: Optics Express. - Optical Society of America. - 1094-4087. ; 16:10, s. 6794-6808
  • Tidskriftsartikel (refereegranskat)abstract
    • Fluorescence lidar techniques offer considerable potential for remote, non-invasive diagnostics of stone cultural heritage in the outdoor environment. Here we present the results of a joint Italian-Swedish experiment, deploying two hyperspectral fluorescence lidar imaging systems, for the documentation of past conservation interventions on the Colosseum, Rome. Several portions of the monument were scanned and we show that it was possible to discriminate among masonry materials, reinforcement structures and protective coatings inserted during past conservation interventions, on the basis of their fluorescence signatures, providing useful information for a first quick, large-scale in situ screening of the monument.
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