Few-shot semantic segmentation via mask aggregation

• URL: http://arxiv.org/abs/2202.07231v1
• Date: Tue, 15 Feb 2022 07:13:09 GMT
• Title: Few-shot semantic segmentation via mask aggregation
• Authors: Wei Ao, Shunyi Zheng, Yan Meng
• Abstract summary: Few-shot semantic segmentation aims to recognize novel classes with only very few labelled data. Previous works have typically regarded it as a pixel-wise classification problem. We introduce a mask-based classification method for addressing this problem.
• Score: 5.886986014593717
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Few-shot semantic segmentation aims to recognize novel classes with only very few labelled data. This challenging task requires mining of the relevant relationships between the query image and the support images. Previous works have typically regarded it as a pixel-wise classification problem. Therefore, various models have been designed to explore the correlation of pixels between the query image and the support images. However, they focus only on pixel-wise correspondence and ignore the overall correlation of objects. In this paper, we introduce a mask-based classification method for addressing this problem. The mask aggregation network (MANet), which is a simple mask classification model, is proposed to simultaneously generate a fixed number of masks and their probabilities of being targets. Then, the final segmentation result is obtained by aggregating all the masks according to their locations. Experiments on both the PASCAL-5^i and COCO-20^i datasets show that our method performs comparably to the state-of-the-art pixel-based methods. This competitive performance demonstrates the potential of mask classification as an alternative baseline method in few-shot semantic segmentation. Our source code will be made available at https://github.com/TinyAway/MANet.

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