STRANGE WAVE FORMS ACROSS ORTHOMOSAIC

[jkova96]

Hi dear Agisoft team,

We faced one issue when trying to get Agisoft Metashape orthomosaic result. Problem is that everything in terms of accuracy and image alignment is fine (and everything else what comes after image alignment - point cloud, dem) but when ortomosaic was generated then we got like "coushin" or better said something like wave form across ortomosaic.

We capture photos with Wingtra ONE drone. We tested various projects with Agisoft Metashape but this is the first time that we have this issue. Can you suggest what might be wrong? I'll send you picture how final ortomosaic looks.

Here are pictures showing you how orthomosaic actually looks : https://mega.nz/folder/NLg3QT6A#Nw87IgCFuUNFCNDUQFmpig

Best regards!

J.K.

[jkova96]

Hi dear Agisoft team,

We faced one issue when trying to get Agisoft Metashape orthomosaic result. Problem is that everything in terms of accuracy and image alignment is fine (and everything else what comes after image alignment - point cloud, dem) but when ortomosaic was generated then we got like "coushin" or better said something like wave form across ortomosaic.

We capture photos with Wingtra ONE drone. We tested various projects with Agisoft Metashape but this is the first time that we have this issue. Can you suggest what might be wrong? I'll send you picture how final ortomosaic looks.

Here are pictures showing you how orthomosaic actually looks : https://mega.nz/folder/NLg3QT6A#Nw87IgCFuUNFCNDUQFmpig

Best regards!

J.K.

[Alexey Pasumansky]

Hello J.K.,

Probably the source images are brighter on one side and darker on another?

In case the brightness fades from the center to the borders, you can apply the same mask to all the images to exclude the corners and sides and rebuild the orthomosaic.

[harrytwomey]

Do the Waves match the flight line and spacing, and was it an interlaced flight path (every second row done on 1 pass and the remainder filled in on the way back)

If so, an option could be a change in the lighting in the environment, i.e. change in the level of overcast cloud cover. we have seen it happen before