The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLVI-M-1-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-M-1-2021, 71–78, 2021
https://doi.org/10.5194/isprs-archives-XLVI-M-1-2021-71-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-M-1-2021, 71–78, 2021
https://doi.org/10.5194/isprs-archives-XLVI-M-1-2021-71-2021

  28 Aug 2021

28 Aug 2021

HOLOGRAPHIC VISUALIZATION AND MANAGEMENT OF BIG POINT CLOUD

C. M. Bolognesi, S. Teruggi, and F. Fiorillo C. M. Bolognesi et al.
  • Department of Architecture, Built Environment and Construction engineering (DABC), Politecnico di Milano, via Giuseppe Ponzio 31, 20133 Milan, Italy

Keywords: Digital survey, Holograms, Laser Scanning, Point Cloud, Holographic Device

Abstract. The work aims to present and validate the workflow from the 3D survey to the visualization of cultural heritage objects using the innovative Euclideon Hologram Table©. Three case studies surveyed with three different systems and at three different scales have been selected: Santa Maria delle Grazie in Milan (terrestrial laser scanner for an architecturalscale), the village of Ghesc in the Ossola valley (UAV survey for an environmental scale) and the cuneiform clay tablet number 727 (structured light system for a detailscale). The whole process of transforming the 3D point/mesh model to hologram was verified, analysing the file formats, technical performance and specifications, file dimensions manageable, and details viewable. The first test shows great potentiality, becausethe hologram exploring is impressively fluid even when zooming to view a higher detail level, despite the high number of points/polygons. The power and performance of the point cloud 3D rendering engine result impressive. Nonetheless,different aspects need further research, from point cloud visualization quality to enhancing 3D model interaction.