Aerial Photography and Visualisation for Built Heritage - PhD Portfolio by Kieran Baxter
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Friday, 21 October 2011

Reconstructing the Crannog Roof from KAP to 3D

I selected 114 photographs of the Crannog from different angles to generate a point cloud of 84,000 vertices. This was cleaned a little and then poisson surface reconstruction applied to generate this mesh:

The spatial accuracy of this geometry makes it easy to texture by projecting the original photographs onto the surface. This turnaround was textured using just one straight-down frame:

There are more photograhs, and therefore data acuarcy, on one side than the other. Of the more subtle features which have survived in the photogrammetry data you can make out the archway above the door and verticle ridges which relate to the suporting structure underneath the thatch.

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