Papers › On Advantages of Mask-level Recognition for Outlier-aware Segmentation

On Advantages of Mask-level Recognition for Outlier-aware Segmentation

9 Jan 2023arXiv:2301.03407archive 2025-07-28

Matej Grcić, Josip Šarić, Siniša Šegvić

Most dense recognition approaches bring a separate decision in each particular pixel. These approaches deliver competitive performance in usual closed-set setups. However, important applications in the wild typically require strong performance in presence of outliers. We show that this demanding setup greatly benefit from mask-level predictions, even in the case of non-finetuned baseline models. Moreover, we propose an alternative formulation of dense recognition uncertainty that effectively reduces false positive responses at semantic borders. The proposed formulation produces a further improvement over a very strong baseline and sets the new state of the art in outlier-aware semantic segmentation with and without training on negative data. Our contributions also lead to performance improvement in a recent panoptic setup. In-depth experiments confirm that our approach succeeds due to implicit aggregation of pixel-level cues into mask-level predictions.

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matejgrcic/Open-set-M2F officialmentioned on GitHubpytorchMIT report

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Anomaly DetectionSemantic Segmentation

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