Poux wrote:Looks awesome !
Talking about accuracy, what can you expect from your experience for a well conducted underwater project (precision per point, noise, range, ...) ? Do you georeference such point clouds or work locally ?
First time I see such examples, very very nice !
As you'd expect, the water is a more challenging environment to work in than air. Both logistically, physically conducting the survey, but also technically. The accuracy is affected by the water itself - clarity and particulates in the water in particular can cause an issue and reduce the clarity of the final data. Range is dependent on the water clarity too. If it's fast moving currents, you have to consider the stability of your scanning deployment method. For most projects we would be working locally, but in some cases georeferencing is necessary. There are a couple of different methods of achieving this, depending on the survey location (and water depth).