If you know the camera make and model, you might be able to get lens parameters and get better estimates of real world geometry from the image

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yassa9 an hour ago | parent [-]

yea thank u, that's another part, but mainly it would hard although knowing that, because you need to know elevation of the drone or the camera, which is also extremely difficult (I already mentioned that in the blog)

	▲	StilesCrisis an hour ago \| parent [-]
		The camera make and model wouldn't tell you the lens parameters. The EXIF would, but that was already covered in the triplet.