I will try te be as clear as I possibly can with this question, please bare with me and let me know if i’m missing any important details. All the questions refers to visual elements and ortho mosaic maps.
We have a customer who wants us to map large boddys of water to monitor the development of alga blooming and at the same time analyze objects on the water surface such as bois, fishing nets, islets etc.
Since water is notoriously hard to map we have done some testing and actually got really good results where the map consistently stitches the whole area together see screen shot 1.
However when I zoom in on the map I can see that it’s (obviously) not perfectly stitched together. In screen shot 2 (zoom in of the ortho mosaic map) there is a boat where small parts of the boat is missing. In this case it is very easy to assume how much data has gone missing.
But when I zoom in an area just containing water surface (see screen shot 3) we can still see that the map has not stitched properly along the red line, but in this case I do not know how to estimate how much data is potentially missing?
We want to be able give the customer a rule of thumb. For example “When the generated ortho mosaic map is complete, meaning the full area mapped has been stitched without any holes in it you can expect it to contain 98% of the visual elements compared to the 100% if you where watching each individual raw photo.”
The answers we are looking for
Is it possible in some way to analyze maps and com up with a reliable estimates of how much data is missing when a map is not properly stitched?
Ideas on techniques to get more accurate stitching over water.
Thank full for all the input I can get from you guys!