Abstract
Oriented ship detection in very high resolution (VHR) remote sensing imagery remains challenging due to elongated hull geometry and dense target distributions in complex port scenes. Existing methods typically address geometric representation and duplicate suppression separately. To jointly tackle these issues, we propose an oriented ship detector with two complementary components. The C3k2_Strip module employs orthogonal strip convolutions to better capture elongated hull structures, while the Class-Aware Direction-Aware Exclusion Loss (CA-DAEL) suppresses redundant predictions using class, direction, and confidence cues. Experiments on HRSC2016 and DIOR-R achieve 78.45% and 53.71% mAP50:95, respectively, with only 2.91M parameters. On HRSC2016, the proposed method improves mAP50:95 by 6.32 percentage points over the YOLOv11-OBB baseline, demonstrating its effectiveness for accurate oriented ship detection.
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Publication details
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- Open access
- Green open access
Cite this article
APA 7
Chen, B., Liu, Y., Yang, P., & Lu, C. (2026). Strip Convolution and Direction-Aware Exclusion Loss for Oriented Ship Detection. https://omanscience.com/en/articles/strip-convolution-and-direction-aware-exclusion-loss-for-oriented-ship-detection
MLA 9
Chen, Bin, et al. "Strip Convolution and Direction-Aware Exclusion Loss for Oriented Ship Detection." https://omanscience.com/en/articles/strip-convolution-and-direction-aware-exclusion-loss-for-oriented-ship-detection.
Chicago (author–date)
Chen, Bin, Yuanyuan Liu, Peng Yang, and Chao Lu. 2026. "Strip Convolution and Direction-Aware Exclusion Loss for Oriented Ship Detection." https://omanscience.com/en/articles/strip-convolution-and-direction-aware-exclusion-loss-for-oriented-ship-detection.
Harvard
Chen, B., Liu, Y., Yang, P. and Lu, C. (2026) 'Strip Convolution and Direction-Aware Exclusion Loss for Oriented Ship Detection', Available at: https://omanscience.com/en/articles/strip-convolution-and-direction-aware-exclusion-loss-for-oriented-ship-detection.
Vancouver
Chen B, Liu Y, Yang P, Lu C. Strip Convolution and Direction-Aware Exclusion Loss for Oriented Ship Detection. https://omanscience.com/en/articles/strip-convolution-and-direction-aware-exclusion-loss-for-oriented-ship-detection
IEEE
B. Chen, Y. Liu, P. Yang, and C. Lu, "Strip Convolution and Direction-Aware Exclusion Loss for Oriented Ship Detection," https://omanscience.com/en/articles/strip-convolution-and-direction-aware-exclusion-loss-for-oriented-ship-detection.