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The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Learning Pixel-Level Semantic Affinity with Image-Level Supervision for Weakly Supervised Semantic Segmentation

Open access
Ahn, Jiwoon, Kwak, Suha·2018·2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition

Abstract

The deficiency of segmentation labels is one of the main obstacles to semantic segmentation in the wild. To alleviate this issue, we present a novel framework that generates segmentation labels of images given their image-level class labels. In this weakly supervised setting, trained models have been known to segment local discriminative parts rather than the entire object area. Our solution is to propagate such local responses to nearby areas which belong to the same semantic entity. To this end, we propose a Deep Neural Network (DNN) called AffinityNet that predicts semantic affinity between a pair of adjacent image coordinates. The semantic propagation is then realized by random walk with the affinities predicted by AffinityNet. More importantly, the supervision employed to train AffinityNet is given by the initial discriminative part segmentation, which is incomplete as a segmentation annotation but sufficient for learning semantic affinities within small image areas. Thus the entire framework relies only on image-level class labels and does not require any extra data or annotations. On the PASCAL VOC 2012 dataset, a DNN learned with segmentation labels generated by our method outperforms previous models trained with the same level of supervision, and is even as competitive as those relying on stronger supervision.

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Crossref · 10.1109/cvpr.2018.00523

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Metadata

Authors
Ahn, J., & Kwak, S.
Venue
2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition
Publisher
IEEE
Published
2018-06
Pages
4981-4990
ISSN
1063-6919 (ISSN-L)
OpenAlex
W2962758679
Cited by
872
References
42
FWCI
19.62
Type
conference paper
Language
en
Open access
green

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