python scripts to perform coin die clustering (performed on Riedones3D).

Last update: Apr 29, 2022

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Miscellaneous riedones3d

Overview

Riedones3D

It is the code to perform coin die recognition and die clustering

Installation

requirements:

pyrender==0.1.45
hydra-core==1.0.0
omegaconf==2.0.6
scikit-learn==0.24.2
torch-cluster==1.5.9
torch-scatter==2.0.7
torch-geometric==1.7.2
torch==1.8.1
torch_points_kernels
torch-points3d==1.3.0
MinkowskiEngine==0.5.2
torch-sparse==1.4.0
omegaconf==2.0.6
hydra-core==1.0.0
open3d==0.12.0

First install anaconda or miniconda (use this website for example)

then open a terminal.

create a new environnement (for example using conda)

conda create -n "riedones_3d"

conda activate riedones_3d

execute this script to install the correct packages(here we install with cuda102)

pip install pyrender
pip install trimesh
pip install torch==1.8.1
pip install torch-scatter -f https://data.pyg.org/whl/torch-1.8.1+cu102.html
pip install torch-sparse -f https://data.pyg.org/whl/torch-1.8.1+cu102.html
pip install torch-cluster -f https://data.pyg.org/whl/torch-1.8.1+cu102.html
pip install torch-spline-conv -f https://data.pyg.org/whl/torch-1.8.1+cu102.html
pip install torch-geometric==1.7.2
pip install git+https://github.com/nicolas-chaulet/[email protected]

install minkowski engine

apt-get install build-essential python3-dev libopenblas-dev
pip install -U git+https://github.com/NVIDIA/Mink[email protected] --no-deps

install torch-sparse

apt-get install libsparsehash-dev
pip install --upgrade git+https://github.com/mit-han-lab/[email protected]

Preprocessing

As input, we need point cloud in ply format. We propose a simple script to convert from stl to ply with normals(if you already have point cloud in ply, you do not need this step).

python scripts/mesh2pcd.py --path_coin mymesh.stl

Register a pair of coin

It will register the pair and it will also compute the histogram of distance. It displays the results with open3D.

python scripts/whole_pipeline.py --path COIN1.ply COIN2.ply -m PATH OF THE MODEL --angle 0 --trans 20  --clf classifiers/logistic_part_droits_sym.pkl --path_scaler classifiers/mean_std.json --est ransac

Coin die Clustering

Compute the features

First you need to compute the features:

python scripts/compute_feature.py --path_coin DROITS --list_coin Coins_et_Monnaies_Droits_all.csv -m PATH OF THE MODEL --path_output results --name Droits

It takes few minutes to compute every features

compute a pair similarity comparison

python scripts/compute_transformation.py --path_feature results/Droits/feature/  --path_output results/Droits/transformation --list_coin Coins_et_Monnaies_Droits_all.csv --num_points 5000 --est ransac --clf classifiers/logistic_part_droits_sym.pkl --path_scaler classifiers/mean_std.json --n_jobs 8 --sym

--sym means the histogram is symmetric. --num_points is the number of points --est is the robust estimator to compute the transformation It takes few days to compute every similarities it will generate two files:

a file containing every transformations
a file containing every histograms of distance

Compute the Graph

We compute the graph of similarity between the pairs of coins

python scripts/compute_graph_from_hist.py --path_histogram results/Droits/transformation/hist.npy -m classifiers/logistic_part_droits_sym.pkl -o results/Droits/graph --path_scaler classifiers/mean_std.json

Clean the graph using graph visualizer

You can select links nodes, remove/add links, search for a node cluster the results, save the graph.

TODO: Tutorial about how to use graph visualizer

generate images and 3D models

TODO: Tutorial for this script

python scripts to perform coin die clustering (performed on Riedones3D).

Related tags

Overview

Riedones3D

Installation

Preprocessing

Register a pair of coin

Coin die Clustering

Compute the features

compute a pair similarity comparison

Compute the Graph

Clean the graph using graph visualizer

generate images and 3D models

Owner

Sofiane

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