Hybrid-S2S: Video Object Segmentation with Recurrent Networks and Correspondence Matching

• URL: http://arxiv.org/abs/2010.05069v2
• Date: Sat, 7 Nov 2020 09:33:51 GMT
• Title: Hybrid-S2S: Video Object Segmentation with Recurrent Networks and Correspondence Matching
• Authors: Fatemeh Azimi and Stanislav Frolov and Federico Raue and Joern Hees and Andreas Dengel
• Abstract summary: One-shot Video Object(VOS) is the task of tracking an object of interest within a video sequence. We study an RNN-based architecture and address some of these issues by proposing a hybrid sequence-to-sequence architecture named HS2S. Our experiments show that augmenting the RNN with correspondence matching is a highly effective solution to reduce the drift problem.
• Score: 3.9053553775979086
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: One-shot Video Object Segmentation~(VOS) is the task of pixel-wise tracking an object of interest within a video sequence, where the segmentation mask of the first frame is given at inference time. In recent years, Recurrent Neural Networks~(RNNs) have been widely used for VOS tasks, but they often suffer from limitations such as drift and error propagation. In this work, we study an RNN-based architecture and address some of these issues by proposing a hybrid sequence-to-sequence architecture named HS2S, utilizing a dual mask propagation strategy that allows incorporating the information obtained from correspondence matching. Our experiments show that augmenting the RNN with correspondence matching is a highly effective solution to reduce the drift problem. The additional information helps the model to predict more accurate masks and makes it robust against error propagation. We evaluate our HS2S model on the DAVIS2017 dataset as well as Youtube-VOS. On the latter, we achieve an improvement of 11.2pp in the overall segmentation accuracy over RNN-based state-of-the-art methods in VOS. We analyze our model's behavior in challenging cases such as occlusion and long sequences and show that our hybrid architecture significantly enhances the segmentation quality in these difficult scenarios.

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