Production with SURE - Best Practices

Doing professional production with SURE is simple.

Following these simple guidelines enables you to get the best quality results in the shortest time possible.

  • Get hardware compliant with the proposed requirements.

  • Get oriented (aero-triangulated) imagery. SURE supports a wide range of orientation formats (Inpho prj, gori, ...). The production of high-quality results requires high-quality orientations (error below 2 pixels).

  • Create a shapefile delimiting the region of interest for the processing. Ensure that the input imagery fully covers the selected area.

  • If required, set the desired output GSD (Ground Sampling Distance).

  • Let SURE select the proper tile size for the processing. Sure chooses a tile size that ensures that the processing stays within the hardware requirements. You can later re-tile the results using a different tile size for delivery.

  • If large water bodies are present in the surveyed area, create a 3D shapefile delimiting all relevant water bodies.

  • Use distributed processing. Using distributed processing, even when a single machine is in use, gives you the following possibilities:

    • Add nodes to the processing on demand if necessary.

    • Keep disk space consumption within the hardware requirements.

DSM & True Ortho Production

  • If you have a camera capturing both Nadir and Oblique images, create a project containing only the Nadir images. Restricting the imagery to the Nadir frames speeds up processing and guarantees high-quality results.

  • For optimal results, we recommend a forward overlap of 80 percent. Use a sideward overlap of 30 percent for rural areas and a minimum of 60 percent for urban areas. 

  • LiDAR point clouds improve the completeness of the results, in particular for low-overlap flights.

  • From the DSM, also a DSM Mesh (2.5D) can be generated.

3D Mesh Production

  • Use all the imagery available. In particular, it is essential to make use of oblique imagery for generating high quality textured facades and vertical structures.

  • LiDAR point clouds and LiDAR trajectory information improve the completeness and quality of the resulting 3D meshes.