This repository contains the source code for the paper Show, Match and Segment: Joint Weakly Supervised Learning of Semantic Matching and Object Co-segmentation.

We present an approach for jointly matching and segmenting object instances of the same category within a collection of images. In contrast to existing algorithms that tackle the tasks of semantic matching and object co-segmentation in isolation, our method exploits the complementary nature of the two tasks. The key insights of our method are two-fold. First, the estimated dense correspondence fields from semantic matching provide supervision for object co-segmentation by enforcing consistency between the predicted masks from a pair of images. Second, the predicted object masks from object co-segmentation in turn allow us to reduce the adverse effects due to background clutters for improving semantic matching. Our model is end-to-end trainable and does not require supervision from manually annotated correspondences and object masks. We validate the efficacy of our approach on five benchmark datasets: TSS, Internet, PF-PASCAL, PF-WILLOW, and SPair-71k, and show that our algorithm performs favorably against the state-of-the-art methods on both semantic matching and object co-segmentation tasks.

If you find our code useful, please consider citing our work using the following bibtex:

@article{MaCoSNet,
    title={Show, Match and Segment: Joint Weakly Supervised Learning of Semantic Matching and Object Co-segmentation},
    author={Chen, Yun-Chun and Lin, Yen-Yu and Yang, Ming-Hsuan and Huang, Jia-Bin},
    journal={IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI)},
    year={2020}
}

@inproceedings{WeakMatchNet,
  title={Deep Semantic Matching with Foreground Detection and Cycle-Consistency},
  author={Chen, Yun-Chun and Huang, Po-Hsiang and Yu, Li-Yu and Huang, Jia-Bin and Yang, Ming-Hsuan and Lin, Yen-Yu},
  booktitle={Asian Conference on Computer Vision (ACCV)},
  year={2018}
}

• Install Anaconda Python3.7
• This code is tested on NVIDIA V100 GPU with 16GB memory

pip install -r requirements.txt

• Please download the PF-PASCAL, PF-WILLOW, SPair-71k, TSS, and Internet datasets
• Please modify the variable DATASET_DIR in config.py
• Please modify the variable CSV_DIR in config.py

• You may determine which dataset to be the training set by changing the $DATASET variable in train.sh
• You may change the $BATCH_SIZE variable in train.sh to a suitable value based on the GPU memory
• The trained model will be saved under the trained_models folder

sh train.sh

• You may determine which dataset to be evaluated by changing the $DATASET variable in eval.sh
• You may change the $BATCH_SIZE variable in eval.sh to a suitable value based on the GPU memory

sh eval.sh

• This code is heavily borrowed from Rocco et al.