ANSWERS TO YOUR
TECHNICAL QUESTIONS.
Why Correlator3D generates my DSM with holes?
There are many reasons that could lead to holes. These are the most frequent:
- The overlap between images is less than 50%. This means that some parts of the project cannot be seen in more than one image, making DSM generation impossible.
- The DSM resolution is too high considering the quality of the images. If the images are blurry, it becomes hard for the software to match the features from all images at maximum resolution. You should consider reducing the resolution of the DSM.
- Aerial triangulation is not adequate. If the positions and orientations of the images are not precise enough, it can make the matching process difficult, leading in holes.
It is also possible to fix some of the issues using the DEM Editing module. As a an example, you could capture a selection around a hole and then perform a "Delete and Fill".