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Cited by 1,500

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PANet: Few-Shot Image Semantic Segmentation With Prototype Alignment

Open access
Wang, Kaixin, Liew, Jun Hao, Zou, Yingtian, Zhou, Daquan, Feng, Jiashi·2019·2019 IEEE/CVF International Conference on Computer Vision (ICCV)

Abstract

Despite the great progress made by deep CNNs in image semantic segmentation, they typically require a large number of densely-annotated images for training and are difficult to generalize to unseen object categories. Few-shot segmentation has thus been developed to learn to perform segmentation from only a few annotated examples. In this paper, we tackle the challenging few-shot segmentation problem from a metric learning perspective and present PANet, a novel prototype alignment network to better utilize the information of the support set. Our PANet learns class-specific prototype representations from a few support images within an embedding space and then performs segmentation over the query images through matching each pixel to the learned prototypes. With non-parametric metric learning, PANet offers high-quality prototypes that are representative for each semantic class and meanwhile discriminative for different classes. Moreover, PANet introduces a prototype alignment regularization between support and query. With this, PANet fully exploits knowledge from the support and provides better generalization on few-shot segmentation. Significantly, our model achieves the mIoU score of 48.1% and 55.7% on PASCAL-5i for 1-shot and 5-shot settings respectively, surpassing the state-of-the-art method by 1.8% and 8.6%.

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Metadata

Authors
Wang, K., Liew, J. H., Zou, Y., Zhou, D., & Feng, J.
Venue
2019 IEEE/CVF International Conference on Computer Vision (ICCV)
Publisher
IEEE
Published
2019-10
Pages
9196-9205
OpenAlex
W2990230185
Cited by
1,500
References
26
FWCI
38.76
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: PANet: Few-Shot Image Semantic Segmentation With Prototype Alignment. https://app.cochat.ai/papers/10.1109/iccv.2019.00929
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Wang, K., Liew, J. H., Zou, Y., Zhou, D., & Feng, J. (2019). PANet: Few-Shot Image Semantic Segmentation With Prototype Alignment. 2019 IEEE/CVF International Conference on Computer Vision (ICCV). https://doi.org/10.1109/iccv.2019.00929

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