Question about the coordinate of ply pointcloud data

[LZL-CS]

Hi @tsattler @ebrach ,
Thanks for your awesome work. I am confused about the coordinate of the .ply pointcloud data from the SfM-based pseudo ground truth (pGT) is OpenGL or OpenCV?

[ebrach]

Hi!

Sorry - we did this project a while ago :) What .ply files are you referring to?

Best,
Eric

[LZL-CS]

Hi!

Sorry - we did this project a while ago :) What .ply files are you referring to?

Best, Eric

Hi, I mean the points3D.ply file after sparse reconstruction.

[tsattler]

I assume you generate this file using Colmap? If yes, then it uses computer vision camera coordinates (x-axis = right, y-axis = down, z-axis=forward).

[LZL-CS]

I assume you generate this file using Colmap? If yes, then it uses computer vision camera coordinates (x-axis = right, y-axis = down, z-axis=forward).

Hi @tsattler, thanks for your prompt reply. Yes, I am trying to use the 7Scenes colmap file for 3DGS, it should be OpenCV coordinate.