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Cómo corregir datos faltantes sobre el agua

BrianBulla

Vea la imagen a continuación. Este es un vuelo sobre algunas lagunas que solo terminé a medias, pero la parte que terminé no salió tan bien. ¿Hay una forma recomendada de volar cuando hay mucha agua? Parece que no puede unir los mosaicos y por eso faltan datos.<\/P>

¿Debería tal vez hacer esto desde una altitud más alta (pensé que ya estaba alto para empezar)? ¿O tal vez más bajo?? ¿Menos superposición o más??<\/P>

Cualquier ayuda es apreciada.<\/P>

<\/span><\/P> <\/P> <\/P>

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Accepted answers

Andrew-Bowne

Try flying higher if you can, a little slower, and more overlap. You could also try flying on an overcast day. Reflection off of water can cause the issues you are seeing.

All comments

NicoBonnafoux

Flying higher will definitely help here to ensure you don't have images showing only water which leads to a lack of tie points between images.
It also seems your overlap isn't consistent, I suggest making sure you're using a high-end SD card with a fast write speed (U3/V30 class or better).

BrianBulla

Hi,

Here are the photos. I still need to go back to this site as I need to finish it completely, fly it higher, and on a cloudy day. These are the lower, sunny day images.

NicoBonnafoux

If that's the case, I suspect the issue is with your source images.

Could you share a screenshot with the image locations displayed, and perhaps a few of the images?

Based on your previous note stating that flying higher helped improve the results, I suspect this capture was flown lower and has many images showing only water.

BrianBulla

Hi @NicoBonnafoux . I just reprocessed the above using the Reality Engine, but I would say things did not improve.

Is there a particular setting I need to adjust in Site Scan??

NicoBonnafoux

@BrianBulla in addition to Andrew's suggestion, give the Reality Engine beta a try, it handles water and reflective surface better, with further improvements coming soon.
In the future, we'll also add the "Water Body Correction Feature" available in the desktop ArcGIS Reality products, which flattens water areas and helps avoid gaps.

BrianBulla

Hi,

Yes, flying higher seems to fix this issue. Thanks!

Andrew-Bowne

Try flying higher if you can, a little slower, and more overlap. You could also try flying on an overcast day. Reflection off of water can cause the issues you are seeing.

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