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논문 기본 정보

자료유형
학술저널
저자정보
Yunming Wang (Dalian Jiaotong University) Yiang Zhou (Dalian Jiaotong University) Xianwu Chu (Dalian Jiaotong University) Guodu Peng (Dalian Jiaotong University)
저널정보
Korean Institute of Information Scientists and Engineers Journal of Computing Science and Engineering Journal of Computing Science and Engineering Vol.18 No.2
발행연도
2024.6
수록면
69 - 79 (11page)
DOI
10.5626/JCSE.2024.18.2.69

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초록· 키워드

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The accurate and rapid identification of tram track obstacles is a crucial aspect in improving the safety of urban tram driving. To improve the detection accuracy and detection speed of urban tram track obstacles, the current study proposes an urban tram track obstacle detection algorithm based on Improved-SSD. To this end, for Conv3_3, Conv4_3, and Conv5_3, a bidirectional fusion module is designed to strengthen the feature expression ability of the low-level feature layer and enrich the semantic information. Meanwhile, for Fc7, Conv6_2, Conv7_2, Conv8_2, and Conv9_2, a two-stage deconvolution module is devised to compensate for the lack of detailed information of the high-level feature layer. To improve the detection speed, the convolution split structure is designed to replace all 3×3 convolutions in the backbone network VGG16. Then, to improve the model’s ability to match a specific dataset, the k-means algorithm is used to optimize the aspect ratio of the prior bounding box. Finally, the improved algorithm is trained with and tested using a selfmade dataset. The experimental results show that, compared to the traditional SSD, the mean average precision of the Improved-SSD algorithm in detecting track obstacles is increased by 1.09%. The detection speed is also increased by 0.9 FPS. Lastly, the prediction box matches the real obstacle box better than that of the traditional SSD.

목차

Abstract
I. INTRODUCTION
II. DETECTION ALGORITHM OF TRAM TRACK OBSTACLE BASED ON IMPROVED-SSD
III. EXPERIMENTAL RESULTS AND ANALYSIS
IV. CONCLUSION
REFERENCES

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