I conducted two UAV flights over a woodland, one with high overlap (90% front and side) and one with moderate overlap (75% front and 68% side). The aim with the high overlap flight was to produce high-quality point cloud, DSM and DTM which could then be used to create a canopy height model (CHM). The CHM from the high overlap flight is very good, as I had hoped. However, when comparing the RGB layers from both flights, the RGB layer form the 90% overlap flight is definitely more blurry then the moderate overlap flight. Can anyone suggest why this is? And is there anything I can do in the processing options to reduce the blurry-ness of the high-overlap RGB? It is important as a find a way as this RGB layer will be used in further analysis along with the CHM and other layers produced from the CHM. Thank you in advance for any advice.
Hello there, The reason for the blurriness in the result of noise caused by the vegetation. Having higher overlap would also cause the issue so finding the optimal overlap and flight height is important for any project. To minimize the issue, you can increase the flight height so the GSD is higher and also decrease the image overlap to 80% to minimize the noise created due to high overlap.