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Meshroom

Meshroom is a free and open-source software for the reconstruction of 3D scenes from 2D images. The software uses photogrammetry and a structure from motion (sfm) algorithm to infer the geometry of a scene from a set of photographs or videos.

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Notes and Troubleshooting

Split 360 Equirectangular Panoramic Image

  • Save 360 equirectangular images to a folder.
  • Open the command line terminal.
  • Navigate to the folder containing your Meshroom installation and open the subfolders aliceVision/bin.
  • Run the following code:
alicevision_utils_split360Images.exe -i "<INPUT FOLDER PATH>" -o "<OUTPUT FOLDER PATH>" --equirectangularNbSplits 32
  • The utility will split each panaoramic image into 32 images that can be used in Meshroom to generate a 3D mesh.
  • You can also set the following:
    • Set equirectangular split resolution with --equirectangularSplitResolution which otherwise defaults to 1200.
    • Export a SVG file visualising the split by setting the --equirectangularDemoMode parameter to on or true.

Source: Photogrammetry with RICOH THETA and 360° Images