Roof survey and Topaz Sharpen AI

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When the wind blows in a certain direction our house’s roof groans. Quite unsettling.

I thought it was something loose on the roof, which is corrugated steel. It needed investigation.

The issue is that without a substantial scaffold this corner of the roof is really quite inaccessible.

Enter the DJI Mavic Pro.


I videoed the flight in 4K and frame grabbed images.

I got to wondering whether there is some tech out there which can use info in the frames ‘around’ your grab to enhance the stills. The nearest I found was products from Topaz:

  • Sharpen AI only considers a single still you give and (as I understand it) uses general knowledge to enhance it. It does a remarkable job, but think a more localised approach using my video would be better.
  • Topaz also has a product for upscaling a video (from 4K to 8K). I downloaded the demo but it told me it was going to take a week to analysis the 3 minutes of footage so did not bother.

Anyway, a result from Sharpen AI below. My free trial ran out so you only get one example. But it’s pretty amazing, from a video frame (top) to the processed image (bottom).

What did I find

The roof is fine – no missing screws etc

What I didn’t find

What is causing the noise.

My suspicion is (currently…but is swings wildly) focused on the rolled outer edge of the copper gutter – kinda panpipey.