Torsten Sattler

Best guess is that the image is so noisy / distorted that Colmap cannot match features with standard images. Without looking at the images, this is the best I can...

The GPU implementation used by Colmap does not support estimating affine shapes and domain size pooling. As such, feature extraction is done on the CPU if one of the two...

@ClaudioCimarelli > Thanks a lot for your answer. May I ask if it is worth using those additional options while, on the other hand, is advised to use GPU feature...

If the laptop slows down, then likely you are running out of memory (either RAM or GPU memory). That would be one thing to look into.

I have never used Meshroom and cannot comment on it. I am using Colmap for research purposes as has nice clean code and can be easily modified.

How did you obtain the robot poses? Do you have an accurate calibration between the robot and the camera? Are the camera and robot poses synchronized, or could there be...

You can try the following code, which alternates between bundle adjustment of the model and re-triangulation / track merging. Running this for a few iterations should help refine less accurate...

@TWang1017 I don't understand what the issue is. What do you want to re-order?

Since the underlying database is in the SQL format, you could write a program to delete the images from the database. I don't think Colmap provides ready-made functionality for that.

I don't understand the question. What do you want to achieve?