CRACK-CH: A Crack detection and classification dataset on complex stone masonry surfaces

Description

This dataset includes various images with cracks from the test sites of HYPERION H2020 project (Grant Agreement No. 821054). Specifically, square image patches of 224x224 pixels from the test sites of Naillac and St. Nikolaos Fort are included.

The Saint Nikolaos Fort is an important part of the great fortifications of the Medieval City of Rhodes located at the entrance of the Mantraki port. At this location, there was just a chapel dedicated to Saint Nikolaos until 1464, when it was turned to a fortification. Since then it has undergone reinforcements and expansions in order to defend the city. The outer walls were built in 1480 AD and in 1863 AD it was finally transformed to a lighthouse. The second study area is the Naillac at Saint Paul’s rampart where a monumental tower was located as part of the fortification of the Commercial Harbour of Rhodes. It was constructed around 1400 AD on the Hellenistic Pier, but it was destroyed in 1863 after a severe earthquake. In 2017, the Naillac Tower was graphically reconstructed and presented as it stood until 1863, during the Ottoman rule. The Rodini Roman Bridge is one of the few ancient bridges surviving in Greece and part of the Hellenistic fortification of the city, making it a monument of great importance. It was built across the stream of Rhodini, situated outside the Medieval City and has two arched openings. The Roman Bridge is in continuous use until today and its static efficiency has deteriorated, while the scaffoldings which now support the arches are gradually rusting and losing their efficiency. Those images were split into two separate categories, facilitating the later training and evaluation of the model: “Cracks” and “No cracks”.

The dataset is used to train and evaluate the CNN models for crack detection on complex stone masonry surfaces.

Publication

The paper is availbale here: https://arxiv.org/abs/2303.17989

If you use this dataset please cite it as CRACK-CH [reference].
[Reference] Agrafiotis, Panagiotis, Doulamis, Anastasios, and Georgopoulos, Andreas. (2023) "Unsupervised crack detection on complex stone masonry surfaces", arXiv preprint arXiv:2303.17989

Bibtex entry:

@misc{agrafiotis2023unsupervised,
      title={Unsupervised crack detection on complex stone masonry surfaces}, 
      author={Panagiotis Agrafiotis and Anastastios Doulamis and Andreas Georgopoulos},
      year={2023},
      eprint={2303.17989},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}