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Article Dans Une Revue Neurocomputing Année : 2022

Pixel-accurate road crack detection in presence of inaccurate annotations

Résumé

Recent road crack detection methods obtain appealing scores but typically allow a few pixel tolerance margin. This is acceptable for locating cracks, but not for measuring their width (indicator of the cracks’ severity). Our baseline model, U-VGG19, obtains an F-score of 71.77% on CrackForest, which is superior to other approaches when no tolerance is admitted. However, increasing the scores without tolerance is difficult due to inaccurate annotations. We propose a novel synthetic dataset, Syncrack, as a benchmark for the evaluation of training with inaccurate annotations. Our results show that inaccurate annotations have a detrimental impact on the F-measure, decreasing it by up to 20%. To overcome this, we study label noise correction techniques using weakly supervised learning. Training U-VGG19 with these corrected labels improves the results on Syncrack by up to 12%. Obtained results on the CrackForest and Aigle-RN datasets support that these approaches are useful for real-life data too.
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Dates et versions

hal-03552780 , version 1 (22-07-2024)

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Rodrigo Rill-García, Eva Dokladalova, Petr Dokladal. Pixel-accurate road crack detection in presence of inaccurate annotations. Neurocomputing, 2022, ⟨10.1016/j.neucom.2022.01.051⟩. ⟨hal-03552780⟩
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