RE: #4 UAV Inspection System: CV trouble

gecoz — Thu, 14 Mar 2019 21:08:00 GMT

If you cannot get hold of a good dataset for curved crack images, then you can try a different approach: you could try normalising your input images to the training data. This is a technique used quite often to prepare training datasets, and I think you probably can use it also the other way round.

Basically, the idea is once you take the image of the crack, you apply a transformation, to flatten the curvature, so your image will be matching the type you used to train your solution. This way your model will deal with an image of a flat crack, similar to those used to train it.

Your problem now would be to find a algorithm to transform the image, but you can find some good pointers to start from, like this paper on flattening curved text documents.

I'm not saying it is going to be easy, but I think it might be worth a shot.

Fabio