Sometimes an aerial map may have black holes or areas missing due to poor stitching. This usually means that the processing software was unable to detect and match enough features in multiple images in order to stitch the images together to create a map.
Poor stitching can often be linked to:
- Dense foliage
- Photogrammetry does poorly with dense foliage and it is best if you have
- Low number of photos (flew too low and/or a flight area that is too small)
- Not enough overlap
- Overexposed/Underexposed photos
Depending on what the issue is, you can try one or more of the recommendations described in this article to improve your future maps.
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