Hello, I want to export the dense reconstruction results in COLMAP format for Gaussian splatting reconstruction, but I’m currently encountering some issues: 1) The camera model in the exported COLMAP test format file is “simple radial”, and I haven’t found a way to change it to “pinhole”. Do I need to perform post-processing myself for this? 2) The exported COLMAP results are sparse. Is there a way to export dense point cloud results? 3) I tried exporting a point cloud in .xyz format, but found that its position differs from the sparse results. However, I set both of them to “local:1-Euclidean” in the Coordinate systems settings. Why is this happening? How should I resolve it? Thank you for your answer.
Here are the spatial positions of two point clouds: the left one is the sparse point cloud obtained from COLMAP, and the right one is the .xyz result exported after performing reconstruction based on it.
Hello @bigfrograbbit
I will try to answer your questions.
Regarding the first one check this post.
It is possible to export the dense point cloud only the way you did.
You need to set Rotation X to 90 to get the point cloud to the same positions as COLMPA’s one:
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