Hello, I'm Ahn Soonhyeuk, working in a company in Korea
I'm leaving a message because of the matching issue between the photo and the point cloud
I work with drones and mirrorless Leica scanners
However, the position of the drone and the position of the scanner are separated and matched due to the level problem
Scan data is e57 and merged data with noise and region already erased
Give them a hand.
It's an honor to hear from you again
1. Scans should be prepared in correct coordinates.
(gps via dji drone) (Gps of scan data entered by merging scan data via register 360 and exporting it to e57)
Aren't the two correct coordinates? I'm curious.
2. You have to run aerotriangulation with option Adjustment constraints: Point clouds (scans).
As you said, I made a tutorial video Could you take a look and point out the wrong options or methods?
I can't upload the video
The video was not uploaded, so I uploaded it on my personal test homepage
https://an-soon-hyeok.com/for-oto/
There's no virus :)
Thank you for your kindness
ansoonhyeok said:(Is there a way to enter control points for pictures and scans? I know how to take pictures and control points)
No, GCPs are only for pictures. Scans should be prepared in correct coordinates.
ansoonhyeok said:Could you tell me more about the two-step process?
You have to run aerotriangulation with option Adjustment constraints: Point clouds (scans).
Thank you so much for the response from the Bentley community influencer
1. You have not input any control points why should they match?
(Is there a way to enter control points for pictures and scans? I know how to take pictures and control points)
2. Are the photos with accurate RTK positions?
(Dji drones have their own gps coordinates But there's no RKT signal from the mobile station)
3. Have you added local geoid?
(wgs84,ecef,korea2000/east belt 2010 (epsg:5187) coordinates alternately)
4. If you do not want to manually input control points then you have to use two step process. At first align photos and then do another aerotriangulation with option to adjust photos to point cloud.
(Could you tell me more about the two-step process? After matching the photos, I added cloud points and matched them, but I don't know what the option is to adjust the photos to fit the cloud you're talking about)
Thank you for your kindness.
You have not input any control points why should they match? Are the photos with accurate RTK positions? Have you added local geoid?
If you do not want to manually input control points then you have to use two step process. At first align photos and then do another aerotriangulation with option to adjust photos to point cloud.