Merged project 1st step results disappearing

PIX4Dmapper
1

Hi, I’m running Pix4dmapper 4.10.0. I need to merge two projects, one is with rgb images, one has thermographic .tiff files.

The projects seem to merge fine and I can see the tie points and in the 3d view after the merging. As soon as I open the processing options and change any setting before starting the step 2 or 3 (even if I don’t change any setting at all) and I press ok, the 1st step greys out and I can’t process step 2 or 3. If I close and reopen the merged project, the tie points disappeared and the 3d view is empty. If I press x rather than ok in the processing option, nothing happens and I am allowed to run step 2 and 3.

I need to change my processing settings as I want to produce a thermographic model, so I want to use the rgb photos to generate the geometry and the thermal photos for texturising.

I can’t re-run the 1st step in the merged project as it will mess up my alignment and several photos, especially the thermal ones become uncalibrated. So I’m stuck.

I tried two different PCs and I get the same behaviour.

Can anyone help please?

2

Hello @drones2, I recommend reviewing the support article below and following each step carefully. Ensure that both subprojects are free from issues, such as multiple blocks, and that all steps are completed correctly.

3

Thank you, can you suggest any articles on how to fix the multiple blocks issue and especially how to identify each individual block? I know that in theory it should be done by adding mtps but I have no visible issues in the ray cloud so I can’t tell where to add them.

4

Hello @drones2, to identify the location of multiple blocks, you can look at your quality report under ‘2D Keypoint Matches’. The blocks are represented by different colors as shown in the figure below.

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If you are looking for the support article on how to create mtps, I would recommend that you go through the support article below,