Syncrack: Improving Pavement and Concrete Crack Detection through Synthetic Data Generation

Rodrigo Rill-García, Rodrigo Rill-García, Eva Dokladalova, Petr Dokládal

2022

Abstract

In crack detection, pixel-accurate predictions are necessary to measure the width – an important indicator of the severity of a crack. However, manual annotation of images to train supervised models is a hard and time-consuming task. Because of this, manual annotations tend to be inaccurate, particularly at pixel-accurate level. The learning bias introduced by this inaccuracy hinders pixel-accurate crack detection. In this paper we propose a novel tool aimed for synthetic image generation with accurate crack labels – Syncrack. This parametrizable tool also provides a method to introduce controlled noise to annotations, emulating human inaccuracy. By using this, first we do a robustness study of the impact of training with inaccurate labels. This study quantifies the detrimental effect of inaccurate annotations in the final prediction scores. Afterwards, we propose to use Syncrack to avoid this detrimental effect in a real-life context. For this, we show the advantages of using Syncrack generated images with accurate annotations for crack detection on real road images. Since supervised scores are biased by the inaccuracy of annotations, we propose a set of unsupervised metrics to evaluate the segmentation quality in terms of crack width.

Paper Citation

in Harvard Style

Rill-García R., Dokladalova E. and Dokládal P. (2022). Syncrack: Improving Pavement and Concrete Crack Detection through Synthetic Data Generation. In Proceedings of the 17th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2022) - Volume 4: VISAPP; ISBN 978-989-758-555-5, SciTePress, pages 147-158. DOI: 10.5220/0010837300003124

in Bibtex Style

@conference{visapp22,
author={Rodrigo Rill-García and Eva Dokladalova and Petr Dokládal},
title={Syncrack: Improving Pavement and Concrete Crack Detection through Synthetic Data Generation},
booktitle={Proceedings of the 17th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2022) - Volume 4: VISAPP},
year={2022},
pages={147-158},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010837300003124},
isbn={978-989-758-555-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 17th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2022) - Volume 4: VISAPP
TI - Syncrack: Improving Pavement and Concrete Crack Detection through Synthetic Data Generation
SN - 978-989-758-555-5
AU - Rill-García R.
AU - Dokladalova E.
AU - Dokládal P.
PY - 2022
SP - 147
EP - 158
DO - 10.5220/0010837300003124
PB - SciTePress