Can't complete reconstruction with 10 RGB-D images.[Open3D WARNING] Write PLY failed: mesh has 0 vertices.

[TaoshuaiZ]

Checklist

• [X] I have searched for similar issues.
• [X] For Python issues, I have tested with the latest development wheel.
• [X] I have checked the release documentation and the latest documentation (for master branch).

My Question

I want to do 3D reconstruction using RGB-D images.I followed the document Docs>Rconstruction System>System Overview The RGB-D datasets that I provided contains 10 RGB-D pairs from multi-view. And the format of my dataset is the same as the example provided in the document. But when I finish my process of running run_system.py, I can't get my .ply mesh, it says [Open3D WARNING] Write PLY failed: mesh has 0 vertices. and [Open3D WARNING] PoseGraph read JSON failed: empty edges.. What should I do to solve this problem?Should I provide more images?

[TaoshuaiZ]

This is the output of running other dataset:

And this is the output of running my dataset:

[saurabheights]

@germanros1987 Related to https://github.com/isl-org/Open3D/discussions/4311#discussioncomment-6916524

In my test, I am working with 2 cameras looking at center of room from opposite corners. I have already done camera pose estimation and the generated 3d pointcloud is proper but quite noisy due to depth errors from realsense.

Thus, I do TSDF integration which works nicely if I let it run for longer, but if I set it to integrate for max 1~2 seconds (vaguely remember, need to reproduce and probably note down pointcloud density w.r.t number of frames used to integrate), the mesh generated is filled with holes.

I faced similar issue, and building a reproducible sample is in my backlog.

[theNded]

@TaoshuaiZ Would you like to post the full log? Empty edges mean the pose estimation is probably wrong; time of Making/Registering Fragments should also be larger than zero.

@saurabheights it would be nice to check the reproducible sample to identify the problem.

[saurabheights]

@theNded Sorry for the delay. I was able to find the issue with your help in issue #4469 . Setting weight threshold to -1 allowed me to get a dense mesh easily.

[FadiGEBRAYEL]

@TaoshuaiZ , have you found a solution to your problem? I’m facing the same issue. Thanks