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Mapping Tall Objects

We are trying to map some towers and during our first 2 test runs, we are encountering the fact the the towers don't get rendered correctly.
It seems that the roof of the towers are aligned with the ground.

example: https://www.mapsmadeeasy.com/maps/public/25c7d2f62a004811a19ccccc0e3f8a2e/

The tower in this example is in fact 65m high.

Is it due to the fact that the capture app only take 90° pictures or because we need the picture for the EXIF to be taken from the ground to set the base altitude?

Dave

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There are a couple of things going on here. First off, to render something like that you will need images from multiple directions and probably some oblique ones. This is a pretty complex shape due to its overhanging portions.

Please read the Data Collection Guidelines at https://www.mapsmadeeasy.com/data_collection

It seems you were not flying high enough, didn't have enough overlap and also shot too late in the day due to the long shadows.

To map something 65 m high accurately, you will need to fly many times higher than that.

Tudor
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