提出新型感知框架,提升自动驾驶对复杂路况的识别能力。
An Analytical Framework to Enhance Autonomous Vehicle Perception for Smart Cities
- 构建包含摩托车、三轮车等特殊目标的自定义数据集,用YOLOv8s进行检测
- AdamW模型在多类目标上表现最优,如汽车0.921、摩托车0.899
- 通过效用评估机制,可选最优感知模型,适合智能交通系统研发者
驾驶环境感知对自动驾驶至关重要,当前正积极研究其落地。本文提出一种基于效用的分析框架,增强自动驾驶车辆对道路环境的理解能力。该框架包含三个模块:采集包含摩托车、三轮车等独特目标的自定义数据集;基于深度学习的物体检测模型YOLOv8s;以及基于训练模型性能值评估感知服务效用的模块。在nuScenes数据集上验证了该感知模型的性能,对比了先进深度学习模型的表现。实验结果显示,三种表现最佳的YOLOv8s实例在[email protected]指标上分别为SGD(0.832)、Adam(0.810)和AdamW(0.822)。尽管SGD模型整体得分略高,但AdamW模型在各类别上表现更优,如汽车0.921、摩托车0.899、卡车0.793,优于SGD模型的对应值(0.915、0.892、0.781),这得到所提感知模型的确认。结果表明,该函数能有效识别适用于AV的最优感知方案。
原文摘要 · Abstract (English)
The driving environment perception has a vital role for autonomous driving and nowadays has been actively explored for its realization. The research community and relevant stakeholders necessitate the development of Deep Learning (DL) models and AI-enabled solutions to enhance autonomous vehicles (AVs) for smart mobility. There is a need to develop a model that accurately perceives multiple objects on the road and predicts the driver's perception to control the car's movements. This article proposes a novel utility-based analytical model that enables perception systems of AVs to understand the driving environment. The article consists of modules: acquiring a custom dataset having distinctive objects, i.e., motorcyclists, rickshaws, etc; a DL-based model (YOLOv8s) for object detection; and a module to measure the utility of perception service from the performance values of trained model instances. The perception model is validated based on the object detection task, and its process is benchmarked by state-of-the-art deep learning models' performance metrics from the nuScense dataset. The experimental results show three best-performing YOLOv8s instances based on [email protected] values, i.e., SGD-based (0.832), Adam-based (0.810), and AdamW-based (0.822). However, the AdamW-based model (i.e., car: 0.921, motorcyclist: 0.899, truck: 0.793, etc.) still outperforms the SGD-based model (i.e., car: 0.915, motorcyclist: 0.892, truck: 0.781, etc.) because it has better class-level performance values, confirmed by the proposed perception model. We validate that the proposed function is capable of finding the right perception for AVs. The results above encourage using the proposed perception model to evaluate the utility of learning models and determine the appropriate perception for AVs.
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