Some old and More recent High resolution satellite imagery comes with tiled-format image such as Worldview, Pleiades, Quickbird, Kompsat, and many others. For this kind of imagery, there are some additional steps needed to properly extract the DEM, Here is how : kzread.info/dash/bejne/mH1k3Jqfh9yZlMo.html

Mantap tutorial paling the best

Hi, thank you for this video 😊 I have Corona and Spot images, can I extract a DEM from these in Agisoft and what will be their resolution? Thank you in advance!

@GEO2004

Жыл бұрын

Corona, you means the wellknown spy satellite? I don't think that would work, because you needs the RPC metadata, and it is usually not available unless you purchase or got the original.copy of the data from the satellite data vendors

how do you verify the RPC information was processed or successfully input? thx!

@GEO2004

2 жыл бұрын

I am not sure my self, but I think if the RPC is wrong or not successfully inserted, the result would be messy

@phantomwizard

2 жыл бұрын

@@GEO2004 Thanks for the reply! I learned that after adding the cameras, you can re-open "camera calibration" & If you don't see RPC in the top right, the information was not successfully processed & no RPC information was added.

@GEO2004

2 жыл бұрын

Nicee

Hello, how add gcp point for better accuracy dem?

@GEO2004

11 ай бұрын

Make sure the source of the gcp data is coming from detailed gnss survey or precise surveying.

How about the resolution of this dem? How much ?

@GEO2004

3 жыл бұрын

It is can be adjusted manually, but software usually gives certain approximation, my experience is around 3 to 5 meters

Apparently you need the professional edition by the way... Which is like 2 grand. The standard version won't work.

@GEO2004

10 ай бұрын

true

where can you obtain streo iamgery

@GEO2004

10 ай бұрын

Buy them from satellite imagery vendors and companies, some of them also provide samples if you want to test them out for your application

is there any open source alternative

@GEO2004

11 ай бұрын

if it is about UAV imagery, you can try WebODM, however, if it is about satellite imagery,As far I Know, WebODM not supported it yet,

@ajaypatro1554

11 ай бұрын

@@GEO2004 i just recently found OTB it great and ArcGIS Pro also has ortho mapping I will be trying both of those since I am not well versed with Py yet, thank you for relying on I appreciate your work.

@GEO2004

10 ай бұрын

nice,