End-to-end video instance segmentation via spatial-temporal graph neural networks

• URL: http://arxiv.org/abs/2203.03145v1
• Date: Mon, 7 Mar 2022 05:38:08 GMT
• Title: End-to-end video instance segmentation via spatial-temporal graph neural networks
• Authors: Tao Wang, Ning Xu, Kean Chen and Weiyao Lin
• Abstract summary: Video instance segmentation is a challenging task that extends image instance segmentation to the video domain. Existing methods either rely only on single-frame information for the detection and segmentation subproblems or handle tracking as a separate post-processing step. We propose a novel graph-neural-network (GNN) based method to handle the aforementioned limitation.
• Score: 30.748756362692184
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Video instance segmentation is a challenging task that extends image instance segmentation to the video domain. Existing methods either rely only on single-frame information for the detection and segmentation subproblems or handle tracking as a separate post-processing step, which limit their capability to fully leverage and share useful spatial-temporal information for all the subproblems. In this paper, we propose a novel graph-neural-network (GNN) based method to handle the aforementioned limitation. Specifically, graph nodes representing instance features are used for detection and segmentation while graph edges representing instance relations are used for tracking. Both inter and intra-frame information is effectively propagated and shared via graph updates and all the subproblems (i.e. detection, segmentation and tracking) are jointly optimized in an unified framework. The performance of our method shows great improvement on the YoutubeVIS validation dataset compared to existing methods and achieves 35.2% AP with a ResNet-50 backbone, operating at 22 FPS. Code is available at http://github.com/lucaswithai/visgraph.git .

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