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Create and edit a reconstruction

You can generate raster and 3D products by creating a reconstruction and processing it in a workspace. A reconstruction can use multiple camera sessions and lidar sessions as input as well as region of interest, water body, and correction geometries. Processing a reconstruction can generate digital surface model (DSM), True Ortho, DSM mesh, point cloud, and 3D mesh products.

Create a reconstruction

To create a reconstruction, complete the following steps:

  1. On the ribbon, click the Home tab, and click New Reconstruction .

  2. Provide a name for the reconstruction in the Reconstruction Name text box.

  3. From the Capture Scenario drop-down menu, choose the scenario that best fits the camera sessions and lidar sessions used as input to the reconstruction.

    Note:

    The Aerial Nadir option requires values for Forward Overlap and Sideward Overlap.

    DSM Metainformation and DSM Mesh products are only available for the Aerial Nadir option.

  4. In the Sessions section, choose at least one camera session.

    Reconstruction using a lidar session only is not supported.

    Tip:

    • Previously aligned camera sessions are in their respective alignment.

    • The lidar sessions are not part of the aligned capture sessions.

    • Check a capture session to automatically check all the camera sessions and the lidar session in it.

  5. In the Products section, choose the products to reconstruct.

    Note:

    Each reconstruction scenario has default products.

    Optionally, you can specify a custom output raster pixel size for raster products, or extra output formats for mesh products.

  6. Under Workspace, click Browse , browse to and choose the workspace where the reconstruction will be processed, and click OK.

    You can either specify a path to an existing workspace or choose an empty folder. Reality Studio will automatically create the required folder structure. If you plan to contribute to this reconstruction from other machines, ensure that the workspace, as well as all input data, is available from the network.

    Tip:

    A default workspace can be defined in the General section of the Options dialog box.

  7. Expand the Optional section, if necessary, and do the following:

    1. Choose Ultra or High for the quality.

      The Ultra option results in the best quality; the High option results in faster processing.

    2. Choose Region of Interest from the drop-down menu.

    3. Choose Water Body Geometries from the drop-down menu and specify values for Type.

      Tip:

      Learn more about water body correction and the types of geometries.

    4. Choose Correction Geometries from the drop-down menu.

    5. Specify the Tile Size value of the tiling scheme.

      Tip:

      Learn more about tile size.

    6. Under Tiling Origin, provide the coordinates for the raster and point cloud products in the X and Y text boxes.

      Note:

      Quality control geometries are not used to create reconstructions. Learn about quality control geometries.

      Edit Packages is only enabled when editing a reconstruction. Learn about improve reconstruction results using an external application.

  8. Click Create.

    Alternatively, click the Create drop-down arrow and choose one of the following options:

    • Create and Submit—Create the reconstruction and add it to the workspace.

    • Create, Submit and Start Contribution—Create the reconstruction, add it to the workspace, and start contributing.

The reconstruction is created and appears in the Project Tree pane.

Tile size

You can define the tiling scheme for raster and point cloud products when creating the reconstruction. You can specify the output raster pixel size, tile size, and tiling origin settings. This means results can meet necessary specifications without additional postprocessing operations.

An important factor to consider when specifying manual tile size is that it can lead to lower performance or require more hardware resources to generate.

General recommendations for maximum tile sizes based on hardware resources are listed below.

Memory/RAM

Recommended for nadir scenario

Recommended for oblique scenario

64 GB

Maximum 2000 x output raster pixel size

Maximum 4000 x output raster pixel size

128 GB or more

Maximum 5000 x output raster pixel size

Maximum 4000 x output raster pixel size
Note:

The tile size provided must be a multiple of the raster pixel size.

Edit reconstruction settings

To edit the reconstruction settings, complete the following steps:

  1. In the Project Tree pane, choose a reconstruction to edit.

  2. On the Reconstruction tab, click Settings .

  3. Edit the reconstruction settings as needed.

    Changing some settings can cause the reconstruction to reset. This permanently deletes all of its data from disk.

  4. Click Save.

  5. On the warning dialog box that appears, click OK.

The reconstruction is updated.

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