用航拍图识别格拉纳达市区停车位,提升城市停车管理效率
Parking Space Detection in the City of Granada
- 基于航拍图像,用语义分割技术区分停靠车、移动车和道路
- 在自建格拉纳达数据集上,DeepLabV3+表现最佳,骰子系数超0.75
- 适合智慧城市、交通规划与自动驾驶领域研究人员参考
本文针对城市区域停车空间检测挑战,聚焦格拉纳达市。利用航拍影像,采用语义分割技术精准识别停靠车辆、行驶车辆及道路。研究核心是构建专用于格拉纳达的自有数据集,用于训练神经网络模型。实验中应用全卷积网络、金字塔网络与空洞卷积,对比优化Dynamic U-Net、PSPNet和DeepLabV3+等模型,适配航拍图像分割任务。使用UDD5、UAVid及自建格拉纳达数据集进行充分实验,以前景准确率、骰子系数(Dice Coefficient)和交并比(Jaccard Index)为评估指标。结果表明DeepLabV3+性能最优。研究展望未来需开发专用停靠车检测神经网络,并拓展至其他城市环境。该工作为城市规划与交通管理提供基于先进图像处理的停车空间高效利用方案。
原文摘要 · Abstract (English)
This paper addresses the challenge of parking space detection in urban areas, focusing on the city of Granada. Utilizing aerial imagery, we develop and apply semantic segmentation techniques to accurately identify parked cars, moving cars and roads. A significant aspect of our research is the creation of a proprietary dataset specific to Granada, which is instrumental in training our neural network model. We employ Fully Convolutional Networks, Pyramid Networks and Dilated Convolutions, demonstrating their effectiveness in urban semantic segmentation. Our approach involves comparative analysis and optimization of various models, including Dynamic U-Net, PSPNet and DeepLabV3+, tailored for the segmentation of aerial images. The study includes a thorough experimentation phase, using datasets such as UDD5 and UAVid, alongside our custom Granada dataset. We evaluate our models using metrics like Foreground Accuracy, Dice Coefficient and Jaccard Index. Our results indicate that DeepLabV3+ offers the most promising performance. We conclude with future directions, emphasizing the need for a dedicated neural network for parked car detection and the potential for application in other urban environments. This work contributes to the fields of urban planning and traffic management, providing insights into efficient utilization of parking spaces through advanced image processing techniques.
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