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MVS visualization toolkit

Visualizing multiple cameras along with the scene interactively. Empowered by plotly, also work on remote server.

Setup

conda create -n mvs_visual python=3.8
conda activate mvs_visual && pip install -r requirements.txt

# for pyopengl to work properly, needed for running the example.
export PYOPENGL_PLATFORM="egl"
# manually fix the bug in pyopengl according to this issue.
# https://github.com/mcfletch/pyopengl/issues/27#issuecomment-511124488

Example

python example.py

# on remote server.
python -m http.server 30025
# on local machine.
ssh -N -L 30025:localhost:30025 <REMOTE_SERVER_SSH_NAME>

You should be able to see a few rendered bunny images from different views saved as view*.png, as well as an example.html. Open that html file in your browser, you should be able to see something like this:

example

Note

This visualization toolkit is largely inspired by the pytorch3D example.

I changed everything to OpenGL camera format (right/up/back corresponding to +x/y/z in camera frame) and dropped the support for pytorch3D cameras, thus using trimesh + pyrender for rendering etc.

Currently support rendering meshes, camera wireframes along with the images, point clouds, line segments, and 3D skeletons.

Known issues

  1. Currently only support isotropic imaging, meaning cameras are expected to have equal heights and weights, equal focals along both x/y directions, and equal principal points at the center of the image.
  2. Currently only support OpenGL format camera. Supporting different camera formats will be nice, including Pytorch3D, Blender, OpenCV etc.
  3. Subplots will become pretty small if there are more than 4 (2x2). This is an issue related to plotly without any open solution as far as I know.

Issues and PR are welcomed.

About

A simple interactive visualization toolkit for MVS that works on server without X11.

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