Messages

46

Camera Calibration / Re: Placing markers increase cameras error after optimization

« on: June 05, 2022, 08:09:35 AM »

Now I can safely say that what I said is correct. The model, once it has accurate GCPs, then can figure out how inaccurate your camera GPS locations are. If you give it only camera GPS, it doesn't know how bad they are

47

Camera Calibration / Re: Quick Question - RTK/PPK precision, drone image position accuracy

« on: June 05, 2022, 07:38:18 AM »

Naaa, I'm taking that back. watched the linked yt-webcast to the end now. So ground control points CAN help to reveal possible z-value errors in the rtk-data, if you messed up something I did not fully understand yet.
Takeaway: doublecheck your data... 

The cameras are positioned in 3D space using the ground control points as an imput. It's not just for revealing Z errors. RTK GPS error isn't the only thing you have to worry about, also the angle of the cameras. If a camera is 1 degree off from nadir, that alone adds a huge amount of error.

48

Feature Requests / Re: Prioritise images taken from closest distance during texture generation

« on: June 04, 2022, 08:47:19 PM »

Another way to improve this would be to allow selection of a seamline polygon and change the assigned photo of that, rather than requiring drawing a new polygon

49

Feature Requests / Re: Standard Plus (i.e. Medium) version please!

« on: June 04, 2022, 09:21:10 AM »

I was able to get an educational license by doing free modeling for the university! But I still think a cheaper "plus" version would be good

50

Feature Requests / Re: Prioritise images taken from closest distance during texture generation

« on: June 04, 2022, 09:20:01 AM »

I would also like to request this and also for generating orthomosaics.

Another good thing would to be able to set priorites for groups of photos, that way you can set the close ones to high priority and further ones lower. I have landscapes where I collect some features (structures) from up close but the rest of the area is just a grid from 120 meters high, but often the 120 meter pictures get chosen for the textures and orthomosaics and I have to manually replace. Or I disable the high cameras and then get left with holes elsewhere

51

General / Re: Placing control points

« on: June 04, 2022, 05:25:24 AM »

If it's not clear I block the control point so it doesn't mess up the model

52

General / Re: How to rotate mesh or point cloud?

« on: June 03, 2022, 06:30:07 AM »

Hello DayGeckoArt,

If you have input coordinates of the cameras or markers in the local system to Reference pane, make sure that Local Coordinates option is selected for chunk in the Reference pane settings dialog.

Any cameras/markers that have coordinates input in a different system should be unchecked on the Reference pane.

Then, to apply the changes, press Update button on the Reference pane toolbar.

Yes local, but I can't find any way to select all the cameras and point cloud and mesh and rotate everything.

For example I have a big fragile map from 1960 that I photographed and processed, but it's tilted. I need to align it to lay flat on the XY axis

53

General / Re: Rolling shutter compensation in 1.8 does not correct all parameters

« on: June 03, 2022, 06:28:35 AM »

If you check all the boxes when you align or optimize cameras, will that take care of the skew from rolling shutter? And what if all your photos don't have rolling shutter? Will they all get the same calibration and get messed up if you have a few rolling shutter pictures in your set?

I shoot manually in raw, not with an automated flight program. Sometimes I end up with a few photos where I didn't let the drone stop fully

54

General / Re: How to upload 3D models or point clouds?

« on: June 03, 2022, 06:27:03 AM »

Hello DayGeckoArt,

Please specify the project properties: reference coordinate system, number of polygons in mesh, number of points in dense cloud. Also specify Metashape version used and whether you upload to Sketchfab directly from Metashape or via any intermediate export format?

Usually a few million triangles. I have tried both local meters and WGS84 with multiple services. But what I've realized in the past couple days is my files are too big so there's no service that can display them. The closest thing I've found is ESRI 3D scenes but unfortunately those are very low res DEM with orthomosaic overlaid, and they drop a lot of polygons until you zoom in really close. Basically useless except for rough visualization and measuring

55

General / Re: How to upload 3D models or point clouds?

« on: May 29, 2022, 10:21:44 PM »

Sketchfab returns a status code 400 error

56

General / How to upload 3D models or point clouds?

« on: May 29, 2022, 10:17:12 PM »

I've tried the built in uploaders in Agisoft Metashape and none seems to work. I get either garbage models, they don't get displayed at all, or error messages. I've tried meshes, point clouds, and in both geographic and local coordinate systems. The closest I've gotten is Cesium but it attemps to display a point cloud with a large square for each point

57

General / How to rotate mesh or point cloud?

« on: May 27, 2022, 08:10:05 AM »

I converted a model from WGS84 to local meters, and the whole thing ended up rotated at a weird angle instead of keeping the original XYZ orientation. I can't find any way to rotate the whole point cloud or mesh. It seems like it should be straightforward but the manual has nothing, I can't find any button or menu option. How do I rotate everything? I'm not looking to rotate the view or the region

58

General / Re: Archival Image SFM: Camera calibration and Optimise Cameras best practice

« on: May 18, 2022, 02:49:39 AM »

I've done this too with aerial photos of the mountains on Molokai. My photos were wider angle so it was probably easier for the program to match them.

I would try first cropping out the borders and then running the alignment without GCPs. I've only tried GCPs with non-GPS photos once and it seemed to confuse Agisoft. You may want to try adaptive camera fitting because according to the manual that lets the program choose what transformations to use in calibration. Or just keep the defaults because a long lens shouldn't require much calibration

59

General / Re: Boost computation speed for photo subalignment

« on: April 20, 2022, 09:38:51 PM »

Your GeForce GTX 1650 has to go. It is way to underpowered compared to the rest of the system. It was already a gimped low end SKU when released in 2019. Aim for an Nvidia RTX 3070 / AMD Radeon 6700XT.

Mak

There are HP OEM RTX 3060 cards available now for under $500... Seems like the best bang for buck! They have over 4000 CUDA cores

60

General / Re: My drone mapping project using GCPs from Pictometry and LiDAR

« on: April 20, 2022, 08:43:25 AM »

I just looked at the marker XML export file and it does seem to store pixel coordinates of each marker and each photo! I don't know if other programs can import it, but at least it does get saved