StripRFNet: A Strip Receptive Field and Shape-Aware Network for Road Damage Detection

• URL: http://arxiv.org/abs/2510.16115v1
• Date: Fri, 17 Oct 2025 18:01:48 GMT
• Title: StripRFNet: A Strip Receptive Field and Shape-Aware Network for Road Damage Detection
• Authors: Jianhan Lin, Yuchu Qin, Shuai Gao, Yikang Rui, Jie Liu, Yanjie Lv,
• Abstract summary: Road surface damage threatens traffic safety and hinders sustainable urban development.<n>We propose StripRFNet, a novel deep neural network comprising three modules.<n>Experiments on the RDD2022 benchmark show that StripRFNet surpasses existing methods.
• Score: 5.980259319825554
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Well-maintained road networks are crucial for achieving Sustainable Development Goal (SDG) 11. Road surface damage not only threatens traffic safety but also hinders sustainable urban development. Accurate detection, however, remains challenging due to the diverse shapes of damages, the difficulty of capturing slender cracks with high aspect ratios, and the high error rates in small-scale damage recognition. To address these issues, we propose StripRFNet, a novel deep neural network comprising three modules: (1) a Shape Perception Module (SPM) that enhances shape discrimination via large separable kernel attention (LSKA) in multi-scale feature aggregation; (2) a Strip Receptive Field Module (SRFM) that employs large strip convolutions and pooling to capture features of slender cracks; and (3) a Small-Scale Enhancement Module (SSEM) that leverages a high-resolution P2 feature map, a dedicated detection head, and dynamic upsampling to improve small-object detection. Experiments on the RDD2022 benchmark show that StripRFNet surpasses existing methods. On the Chinese subset, it improves F1-score, mAP50, and mAP50:95 by 4.4, 2.9, and 3.4 percentage points over the baseline, respectively. On the full dataset, it achieves the highest F1-score of 80.33% compared with CRDDC'2022 participants and ORDDC'2024 Phase 2 results, while maintaining competitive inference speed. These results demonstrate that StripRFNet achieves state-of-the-art accuracy and real-time efficiency, offering a promising tool for intelligent road maintenance and sustainable infrastructure management.

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