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.