DensifyPointCloud crash

[rennu]

Specifications like the version of the project, operating system, and hardware

• Built 30mins ago from master
• Ubuntu 16.04 with updates
• Xeon E3-1246v3, 32GB

I tried to reconstruct Sceaux Castle dataset.

Steps to reproduce the problem

I did initial reconstruction using latest OpenMVG master. Here are the commands:

/opt/openmvg/bin/openMVG_main_SfMInit_ImageListing -i /datasets/images -o /datasets/sfm/matches -d /opt/openmvg/share/openMVG/sensor_width_camera_database.txt

/opt/openmvg/bin/openMVG_main_ComputeFeatures -i /datasets/sfm/matches/sfm_data.json -o /datasets/sfm/matches -m SIFT

/opt/openmvg/bin/openMVG_main_ComputeMatches -i /datasets/sfm/matches/sfm_data.json -o /datasets/sfm/matches -g f

/opt/openmvg/bin/openMVG_main_IncrementalSfM -i /datasets/sfm/matches/sfm_data.json -m /datasets/sfm/matches -o /datasets/sfm/reconstruction_global

/opt/openmvg/bin/openMVG_main_openMVG2openMVS -i /datasets/sfm/reconstruction_global/sfm_data.bin -o /datasets/sfm/omvs/scene.mvs -d /datasets/sfm/omvs

/opt/openmvs/bin/OpenMVS/DensifyPointCloud scene.mvs -w /datasets/sfm/omvs -v 0

At this point DensifyPointCloud fails with error:

12:32:38 [App     ] Build date: Jun 12 2019, 15:45:32
12:32:38 [App     ] CPU: Intel(R) Xeon(R) CPU E3-1246 v3 @ 3.50GHz (8 cores)
12:32:38 [App     ] RAM: 31.28GB Physical Memory 15.98GB Virtual Memory
12:32:38 [App     ] OS: Linux 4.15.0-23-generic (x86_64)
12:32:38 [App     ] SSE & AVX compatible CPU & OS detected
12:32:38 [App     ] Command line: scene.mvs -w /datasets/sfm/omvs -v 0
terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create

[cdcseacave]

This is not enough to debug, I need the data that gives you this error.

[rennu]

Here's the scene.mvs scene.zip

Do you need something else?

[cdcseacave]

sure, how about the undistoreted images?

[rennu]

Here. imgs.zip

[cdcseacave]

It works just fine, on the last master on a fresh Ubuntu 16 x64 with the above files:

[rennu]

Well, for my clean install it doesn't.

I did some testing and the last one to work is this one. The next commit does changes to DensifyPointCloud so it also makes sense that something went broken.

[rennu]

Ok, I think I figured it out. I think it's the -w argument that crashes DensifyPointCloud.

DensifyPointCloud scene.mvs will work

DensifyPointCloud scene.mvs -w /datasets/sfm/omvs will crash

[leokinglong]

@cdcseacave the master branch still have this problem