Learning View Priors for Single-view 3D Reconstruction (CVPR 2019)

Related tags

Deep Learning view_prior_learning
Overview

Learning View Priors for Single-view 3D Reconstruction (CVPR 2019)

This is code for a paper Learning View Priors for Single-view 3D Reconstruction by Hiroharu Kato and Tatsuya Harada.

For more details, please visit project page.

Environment

  • This code is tested on Python 2.7.

Testing pretrained models

Download datasets and pretrained models from here and extract them under data directory. This can be done by the following commands.

mkdir data
cd data
wget --load-cookies /tmp/cookies.txt "https://docs.google.com/uc?export=download&confirm=$(wget --quiet --save-cookies /tmp/cookies.txt --keep-session-cookies --no-check-certificate 'https://docs.google.com/uc?export=download&id=1G5gelwQGniwGgyG92ls_dfc1VtLUiM3s' -O- | sed -rn 's/.*confirm=([0-9A-Za-z_]+).*/\1\n/p')&id=1G5gelwQGniwGgyG92ls_dfc1VtLUiM3s" -O dataset.zip && rm -rf /tmp/cookies.txt
wget --load-cookies /tmp/cookies.txt "https://docs.google.com/uc?export=download&confirm=$(wget --quiet --save-cookies /tmp/cookies.txt --keep-session-cookies --no-check-certificate 'https://docs.google.com/uc?export=download&id=119D78nZ329J90yTkfSrq4imRuQ8ON5N_' -O- | sed -rn 's/.*confirm=([0-9A-Za-z_]+).*/\1\n/p')&id=119D78nZ329J90yTkfSrq4imRuQ8ON5N_" -O models.zip && rm -rf /tmp/cookies.txt
unzip dataset.zip
unzip models.zip
cd ../

Quantitative evaluation of our best model on ShapeNet dataset is done by the following command.

python ./mesh_reconstruction/test.py -ds shapenet -nt 0 -eid shapenet_multi_color_nv20_uvr_cc_long

This outputs

02691156 0.691549002544
02828884 0.59788288686
02933112 0.720973934558
02958343 0.804359183654
03001627 0.603543199669
03211117 0.593105481352
03636649 0.502730883482
03691459 0.673864365473
04090263 0.664089877796
04256520 0.654773500288
04379243 0.602735843742
04401088 0.767574659204
04530566 0.616663414002
all 0.653372787125

Other ShapeNet models are listed in test_shapenet.sh.

Drawing animated gif of ShapeNet reconstruction requires the dataset provided by [Kar et al. NIPS 2017].

cd data
wget --load-cookies /tmp/cookies.txt "https://docs.google.com/uc?export=download&confirm=$(wget --quiet --save-cookies /tmp/cookies.txt --keep-session-cookies --no-check-certificate 'https://docs.google.com/uc?export=download&id=17GjULuQZsn-s92PQFQSBzezDkonowIxR' -O- | sed -rn 's/.*confirm=([0-9A-Za-z_]+).*/\1\n/p')&id=17GjULuQZsn-s92PQFQSBzezDkonowIxR" -O lsm.tar.gz && rm -rf /tmp/cookies.txt
tar xvzf lsm.tar.gz
cd shapenet_release/renders/
find ./ -name "*.tar.gz" -exec tar xvzf {} \;
cd ../../../

Then, the following commands

mkdir tmp
bash make_gif.sh

output the following images.

Training

Training requires pre-trained AlexNet model.

cd data
mkdir caffemodel
cd caffemodel
wget http://dl.caffe.berkeleyvision.org/bvlc_alexnet.caffemodel
cd ../../

Training of the provided pre-trained models is done by

bash train_shapenet.sh
bash train_pascal.sh

Citation

@InProceedings{kato2019vpl,
    title={Learning View Priors for Single-view 3D Reconstruction},
    author={Hiroharu Kato and Tatsuya Harada},
    booktitle={The IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
    year={2019}
}
Comments
  • dataset (.pkl) is missing

    dataset (.pkl) is missing

    Hi authors,

    Would like to know if you can provide a link to download the preprocessed dataset? Thanks!

    https://github.com/hiroharu-kato/view_prior_learning/blob/master/mesh_reconstruction/dataset_shapenet.py#L51

    opened by xcyan 1
  • Voxelization in chainer

    Voxelization in chainer

    Hi @hiroharu-kato

    Really enjoyed reading the VPL paper, thanks for making the code public! I was trying to port the code to python3 and CUDA. I am a bit doubtful about how the voxelize_sub1 should be done. For example, it is not clear to me that how on ine 14 in voxelization.py, i is used, whereas input to the function is j. Also, when it is written voxel=1 like here does it mean that i'th element of voxel array is set to 1?

    Any help in this regard is highly appreciated!

    opened by tejank10 0
  • Single view dataset

    Single view dataset

    Hi @hiroharu-kato Thanks for the code. I have stuck up with some questions and it expecting answers. I have understood the reconstructor part which generate mesh using encoder-decoder architecture. 1.) For single view training, does discriminator takes only one viewpoint (out of 20) as correct views and remaining 19 as incorrect? 2.) What will be partitions of dataset for single view training of discriminator? 3.) What does real views mean In view-based training, reconstructed views from observed viewpoints converge to the real views in a training dataset by minimizing the reconstruction loss (single view)?

    opened by bharadwajdhornala 0
  • Implementations about the FCShapeDecoder

    Implementations about the FCShapeDecoder

    Hi, could you shed light on the usage of obj_scale, tanh_scale, scaling variables in FCShapeDecoder respectively?

    • Why you multiply the intermediate value with the above scaling factor to get the final vertex coordinates? Is that because to reduce the destruction of noise?
    • How to choose the value of those variables? Is that empirically found useful? https://github.com/hiroharu-kato/view_prior_learning/blob/6f1afa8811180a47334cddc62112d7cfb8b2ceca/mesh_reconstruction/decoders.py#L382-L390

    I also notice that the different method is used to reconstruct 3D mesh in your another repo mesh_reconstruction. What makes you choose different reconstruction algorithms?

    Thank you in advance!

    opened by hideonInternet 1
  • Environment dependency

    Environment dependency

    Hi, Could you please share the requirements.txt of this fantastic project? And how to use the neural renderer, is it the same as instructed in neural mesh render?

    Thank you in advance!

    opened by hideonInternet 0
Owner
Hiroharu Kato
Ph.D student
Hiroharu Kato
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