@article{202101.0345,
	doi = {10.20944/preprints202101.0345.v1},
	url = {https://doi.org/10.20944/preprints202101.0345.v1},
	year = 2021,
	month = {January},
	publisher = {Preprints},
	author = {Byung Jik Son and Taejun Cho},
	title = {Modified Crack Detection of Sewer Conduit with Low Resolution Images},
	journal = {Preprints}
}