{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T18:24:10Z","timestamp":1775327050858,"version":"3.50.1"},"reference-count":80,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2024,8,28]],"date-time":"2024-08-28T00:00:00Z","timestamp":1724803200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["52304115"],"award-info":[{"award-number":["52304115"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Road crack detection is of paramount importance for ensuring vehicular traffic safety, and implementing traditional detection methods for cracks inevitably impedes the optimal functioning of traffic. In light of the above, we propose a USSC-YOLO-based target detection algorithm for unmanned aerial vehicle (UAV) road cracks based on machine vision. The algorithm aims to achieve the high-precision detection of road cracks at all scale levels. Compared with the original YOLOv5s, the main improvements to USSC-YOLO are the ShuffleNet V2 block, the coordinate attention (CA) mechanism, and the Swin Transformer. First, to address the problem of large network computational spending, we replace the backbone network of YOLOv5s with ShuffleNet V2 blocks, reducing computational overhead significantly. Next, to reduce the problems caused by the complex background interference, we introduce the CA attention mechanism into the backbone network, which reduces the missed and false detection rate. Finally, we integrate the Swin Transformer block at the end of the neck to enhance the detection accuracy for small target cracks. Experimental results on our self-constructed UAV near\u2013far scene road crack i(UNFSRCI) dataset demonstrate that our model reduces the giga floating-point operations per second (GFLOPs) compared to YOLOv5s while achieving a 6.3% increase in mAP@50 and a 12% improvement in mAP@ [50:95]. This indicates that the model remains lightweight meanwhile providing excellent detection performance. In future work, we will assess road safety conditions based on these detection results to prioritize maintenance sequences for crack targets and facilitate further intelligent management.<\/jats:p>","DOI":"10.3390\/s24175586","type":"journal-article","created":{"date-parts":[[2024,8,28]],"date-time":"2024-08-28T11:54:10Z","timestamp":1724846050000},"page":"5586","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["USSC-YOLO: Enhanced Multi-Scale Road Crack Object Detection Algorithm for UAV Image"],"prefix":"10.3390","volume":"24","author":[{"given":"Yanxiang","family":"Zhang","sequence":"first","affiliation":[{"name":"College of Civil Engineering, Central South University of Forestry & Technology, Changsha 410004, China"}]},{"given":"Yao","family":"Lu","sequence":"additional","affiliation":[{"name":"College of Information Science and Technology, Shihezi University, Shihezi 832003, China"}]},{"given":"Zijian","family":"Huo","sequence":"additional","affiliation":[{"name":"College of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China"}]},{"given":"Jiale","family":"Li","sequence":"additional","affiliation":[{"name":"College of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0993-688X","authenticated-orcid":false,"given":"Yurong","family":"Sun","sequence":"additional","affiliation":[{"name":"College of Computer and Mathematics, Central South University of Forestry & Technology, Changsha 410004, China"}]},{"given":"Hao","family":"Huang","sequence":"additional","affiliation":[{"name":"College of Computer and Mathematics, Central South University of Forestry & Technology, Changsha 410004, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"(2024). 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