The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLVI-2/W1-2022
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-2/W1-2022, 57–63, 2022
https://doi.org/10.5194/isprs-archives-XLVI-2-W1-2022-57-2022
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-2/W1-2022, 57–63, 2022
https://doi.org/10.5194/isprs-archives-XLVI-2-W1-2022-57-2022

  25 Feb 2022

25 Feb 2022

RENDERING EQUIRECTANGULAR PROJECTIONS ACQUIRED WITH LOW-COST 360° CAMERAS

L. Barazzetti1, A. M. Oteri2, R. Pellicanò2, A. Santoro1, and C. Valiante2 L. Barazzetti et al.
  • 1Dept. of Architecture, Built environment and Construction engineering (ABC), Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan, Italy
  • 2Dept. of Architecture and Urban Studies (DASTU), Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan, Italy

Keywords: 360°, Digital twins, Editing, Low-cost sensor, Rendering, Virtual reality

Abstract. A workflow for editing and rendering 360° images (also called spherical or equirectangular images) is illustrated and discussed. The aim was to develop a novel procedure able to overcome limitations induced by deformations in images acquired with low-cost 360° cameras. Editing and rendering are carried on equirectangular projections using a dynamic procedure that turns images into traditional central perspectives, enabling the user to change viewing directions, modify digital content, and store the changes in the original files. Integration of the rendered projections with traditional outputs of digital recording operations as well as other deliverables of the architectural restoration project is also discussed. Finally, the development of a web-GIS application that stores and shares multiple deliverables (including the newly proposed renders) is presented.