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IEEE Transactions on Intelligent Vehicles Publication Information IEEE智能车辆学报出版信息
IF 14 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-17 DOI: 10.1109/TIV.2024.3502273
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引用次数: 0
TechRxiv: Share Your Preprint Research with the World! techxiv:与世界分享你的预印本研究!
IF 14 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-17 DOI: 10.1109/TIV.2024.3502281
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引用次数: 0
Dual-Task Learning for Real-Time Semantic Segmentation in Autonomous Driving 自动驾驶实时语义分割的双任务学习
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-16 DOI: 10.1109/TIV.2025.3579878
Ilias Papadeas;Lazaros Tsochatzidis;Ioannis Pratikakis
Drivable Area Segmentation and Lane Detection constitute crucial tasks for the Visual Perception system of an Autonomous Vehicle. The majority of the approaches dealing with these tasks are addressed as Semantic Segmentation problems using heavy deep learning models that become computationally expensive. In this paper, a dual-task lightweight model is proposed, which comprises a novel dual-task feature fusion mechanism allowing it to exploit global, high-level information while retaining useful low-level details for each task. This model excels not only in terms of accuracy but also achieves real-time performance by solving these two tasks in a multi-task fashion. Our comparative study which was conducted on the standard BDD100 K dataset shows that our proposed method compares favorably with the state-of-the-art offering an optimal trade-off between accuracy and efficiency.
可行驶区域分割和车道检测是自动驾驶汽车视觉感知系统的关键任务。处理这些任务的大多数方法都是使用大量的深度学习模型来解决语义分割问题,这些模型的计算成本很高。本文提出了一种双任务轻量级模型,该模型包含一种新的双任务特征融合机制,使其能够利用全局的高级信息,同时保留每个任务的有用的低级细节。该模型通过以多任务的方式解决这两个任务,不仅在准确性方面具有优势,而且实现了实时性。我们在标准BDD100 K数据集上进行的比较研究表明,我们提出的方法与最先进的方法相比更具优势,在准确性和效率之间提供了最佳的权衡。
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引用次数: 0
Improving Object Detection of Intelligent Vehicles Through Self-Training With Accurate Labeling and Class Balancing 通过精确标注和类平衡的自训练改进智能车辆的目标检测
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-13 DOI: 10.1109/TIV.2025.3578939
Zafar Aziz;Odilbek Urmonov;Shoaib Sajid;HyungWon Kim
Self-training is a novel learning paradigm that generates pseudo-labels for unlabeled data, enabling deep learning models to be trained without the need for human-labeled data. This article proposes self-training through accurate labeling and class balancing (SALB) method that enhances the pre-trained models through periodic multi-round self-training with pseudo-labeled data. In this context, we focus on generating high quality labels by predicting the maximum possible detection labels using different augmented views of the same image. We consolidate all predictions using a modified version of Weighted Box Fusion (WBF) and validate final pseudo-labels through adaptive confidence thresholding. Finally, we recover missing pseudo-labels through our bidirectional tracking technique. Due to the class imbalance in most available public training datasets, pre-trained models occasionally yield incorrect detections for minority object instances, resulting in a bias towards predicting the objects representing majority classes. To tackle this issue, we use copy-paste augmentation technique that enables the copy of minority instances from labeled or high confidence pseudo-labeled data and paste them into pseudo-labeled data to ensure class balance. Our experiments prove that our self-training framework outperforms reference methods on Waymo dataset by achieving 8.7% mAP improvement of the initial pre-trained model with only 10% labeled data used during the model self-training.
自我训练是一种新的学习范式,它为未标记的数据生成伪标签,使深度学习模型无需人工标记数据即可进行训练。本文提出了通过精确标记和类平衡(SALB)方法进行自训练,该方法通过伪标记数据的周期性多轮自训练来增强预训练模型。在这种情况下,我们专注于通过使用同一图像的不同增强视图预测最大可能的检测标签来生成高质量标签。我们使用改进版本的加权盒融合(WBF)合并所有预测,并通过自适应置信度阈值验证最终的伪标签。最后,我们通过双向跟踪技术恢复缺失的伪标签。由于大多数可用的公共训练数据集中的类不平衡,预训练模型偶尔会对少数对象实例产生错误的检测,从而导致对代表多数类的对象的预测偏差。为了解决这个问题,我们使用复制-粘贴增强技术,可以从标记或高置信度的伪标记数据中复制少数实例,并将它们粘贴到伪标记数据中,以确保类平衡。我们的实验证明,我们的自训练框架在Waymo数据集上优于参考方法,在模型自训练过程中仅使用10%的标记数据,就实现了初始预训练模型8.7%的mAP改进。
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引用次数: 0
Advanced Clustering Metric for Mobility Model Using DBSCAN 基于DBSCAN的移动模型高级聚类度量
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-13 DOI: 10.1109/TIV.2024.3519999
Siham Sadiki;Nisrine Ibadah;Hanae Belmajdoub;Khalid Minaoui
Current research aims to gain an in-depth understanding of mobility characteristics in order to accurately assess each mobility defect and maintain network performance. Therefore, this article investigates the use of the Density-Based Spatial Clustering of Applications with Noise(DBSCAN) algorithm to examine the performance of a cluster within a mobility model. The six mobility models: Manhattan Grid Mobility Model(MGMM), Reference Point Group Mobility(RPGM), Nomadic Community Mobility Model (NCMM), PURSUE, Self-Similar Least Action Walk Mobility Model (SLAW), and SMOOTH, are used to evaluate the effectiveness of clustering in capturing the spatial structure of mobile models, including their spatio-temporal locations. The algorithm measures various factors, such as the number of clusters, points in each cluster, and cluster indices. We continue the study that validates synthetic mobility models, focusing on a metric known as “Mobile Neighbors Range”. This metric allows a detailed analysis of the interactions between moving neighbors over time. In this article, a new index called “Global Index” is introduced, based on the variation of clustering, to evaluate the movement of nodes in synthetic mobility models over time using artificial intelligence techniques, namely DBSCAN clustering, which integrates the concept of clusters. The goal is to analyze the dispersion and clustering of nodes over time in each mobility model to gain a more complete understanding of their behavior. This in-depth investigation, marked by 1,200,000 iterations, highlights the scale and precision of our efforts to delineate mobility models, thereby significantly enriching the scientific discourse on mobile networks and systems. The need for this exploration wasapparent, filling a gap in current scientific understanding.
当前的研究旨在深入了解网络的移动性特征,以便准确评估网络的各种移动性缺陷,维护网络性能。因此,本文研究了使用基于密度的带噪声应用程序空间聚类(DBSCAN)算法来检查迁移模型中集群的性能。利用曼哈顿网格移动模型(MGMM)、参考点群移动模型(RPGM)、游牧社区移动模型(NCMM)、pursuit、自相似最小行动步行移动模型(SLAW)和SMOOTH等6个移动模型,评价了聚类方法在捕获移动模型空间结构(包括时空位置)方面的有效性。该算法衡量各种因素,如聚类数量、每个聚类中的点、聚类指数等。我们继续研究,验证综合流动性模型,重点是一个被称为“移动邻居范围”的指标。这个指标允许详细分析移动邻居之间随时间的相互作用。在本文中,基于聚类的变化,引入了一个名为“全局指数”的新指标,利用人工智能技术,即DBSCAN聚类,集成了聚类的概念,来评估综合迁移模型中节点随时间的移动。目标是分析每个移动模型中节点随时间的分散和聚类,以更全面地了解它们的行为。这项深入的调查以120万次迭代为标志,突出了我们描述移动模型的规模和精度,从而显著丰富了移动网络和系统的科学论述。这种探索的必要性是显而易见的,它填补了当前科学认识的空白。
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引用次数: 0
Efficient Rescues at Sea: A Hierarchical Framework of Time-Sensitive Rescue Scheduling and Motion Planning for Unmanned Surface Vehicles 海上高效救援:无人水面航行器时间敏感救援调度和运动规划的分层框架
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-13 DOI: 10.1109/TIV.2025.3578923
Liang Zhao;Fang Wang;Mingye Zhang;Yong Bai
Efficient and reliable planning for unmanned surface vehicles (USVs) is essential to ensure prompt maritime rescue. However, existing methods for practical maritime rescue are limited in two key aspects. On the one hand, rescue operations are time-sensitive, where the USVs must accomplish as many rescue tasks as possible during the early rounds to reduce potential risks and losses due to the delays. Furthermore, the constrained visibility of USVs may cause inadequate time to complete the necessary avoiding maneuvers, preventing the avoidance strategy from being activated timely. To address these challenges, we introduce a planning framework by integrating the time-sensitive rescue task allocation and a visually-compliant motion planner. The time-sensitive task allocation model uses an accumulated reward function to maximize early task completion, with a uniquely designed heuristic algorithm to find high-quality solutions. Furthermore, the motion planning framework integrates a sampling-based global planner with an online planner using quadratic programming. Both planners incorporate collision and visually-compliant Control Barrier Functions (CBFs) to ensure USV safety under constrained visibility. Extensive simulations show that our model quickly identifies high-quality solutions for both large and small-scale problems, outperforming current state-of-the-art methods. Semi-physical USV simulations demonstrate its effectiveness in navigating and responding to unknown environment under constrained visibility.
高效、可靠的无人水面航行器(usv)规划对于确保海上救援的及时进行至关重要。然而,现有的实际海上救援方法在两个关键方面受到限制。一方面,救援行动具有时间敏感性,usv必须在早期完成尽可能多的救援任务,以减少因延误而造成的潜在风险和损失。此外,usv的受限能见度可能导致没有足够的时间来完成必要的回避机动,从而导致回避策略无法及时启动。为了解决这些挑战,我们通过整合时间敏感的救援任务分配和视觉兼容的运动规划器,引入了一个规划框架。时间敏感任务分配模型采用累积奖励函数最大化早期任务完成,并采用独特设计的启发式算法寻找高质量的解决方案。此外,该运动规划框架将基于采样的全局规划与使用二次规划的在线规划相结合。两种规划方案都结合了碰撞和视觉兼容控制屏障功能(cbf),以确保USV在受限能见度下的安全。大量的模拟表明,我们的模型可以快速识别大型和小规模问题的高质量解决方案,优于当前最先进的方法。半物理无人潜航器仿真验证了其在受限能见度下导航和响应未知环境的有效性。
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引用次数: 0
VIL-PPGen: A Novel Pseudo Point Generator Based on Visible Light Camera, Infrared Camera and Lidar 基于可见光相机、红外相机和激光雷达的新型伪点发生器
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-13 DOI: 10.1109/TIV.2024.3511923
Fuyuan Ai;Amjad Hussain;Zecheng Li;Yuying Song;Chunyi Song;Zhiwei Xu
Recently, pseudo-point-based 3D object detection framework has demonstrated superior performance and attracted significant attention. Unfortunately, current pseudo point generators, the core of this framework, fail to consider accuracy, robustness, and efficiency simultaneously. To meet these challenges, we propose a novel pseudo point generator named VIL-PPGen, which leverages a visible light camera, an infrared camera and a lidar to specifically cater to the requirements of pseudo-point-based detectors. The proposed VIL-PPGen mainly consists of three modules: Dual-spectrum Depth Completion Module (DDCM), Sparse Cost Volume Module (SCVM) and Adaptive Depth Correction Module (ADCM). The DDCM adopts a dual structure for depth completion on different spectrums to maintain accuracy, the SCVM utilizes sparse operations for cost volume computation to improve efficiency, and the ADCM employs adaptive confidence and offset for correction to reinforce accuracy and robustness. Ultimately, we can acquire high-quality pseudo points under all-day lighting conditions, which can directly improve the performance of subsequent detectors. To validate the efficacy of our designs, we construct a dataset from real driving scenarios and conduct extensive experiments. The proposed VIL-PPGen achieves 1.083 m MAE (improved by 0.581 m) for depth prediction and 53.10% mAP (improved by 3.75%) for multi-class detection in day scenes, while achieving 1.025 m MAE (improved by 0.551 m) for depth prediction and 55.64% mAP (improved by 3.94%) for multi-class detection in night scenes. It also exhibits excellent real-time performance, achieving a processing speed of 10 FPS.
近年来,基于伪点的三维目标检测框架因其优异的性能而备受关注。不幸的是,当前的伪点生成器(该框架的核心)未能同时考虑准确性、鲁棒性和效率。为了应对这些挑战,我们提出了一种名为VIL-PPGen的新型伪点发生器,它利用可见光摄像机,红外摄像机和激光雷达来专门满足伪点探测器的要求。提出的VIL-PPGen主要由三个模块组成:双谱深度补全模块(DDCM)、稀疏成本体积模块(SCVM)和自适应深度校正模块(ADCM)。DDCM采用双重结构对不同频谱进行深度补全以保持精度,SCVM采用稀疏运算进行成本体积计算以提高效率,ADCM采用自适应置信度和偏移量进行校正以增强精度和鲁棒性。最终,我们可以在全天光照条件下获得高质量的伪点,直接提高后续探测器的性能。为了验证我们设计的有效性,我们从真实的驾驶场景中构建了一个数据集,并进行了广泛的实验。提出的VIL-PPGen在白天场景的多类检测中,深度预测的MAE达到1.083 m(提高0.581 m), mAP达到53.10%(提高3.75%),而在夜间场景的多类检测中,深度预测的MAE达到1.025 m(提高0.551 m), mAP达到55.64%(提高3.94%)。它还具有出色的实时性能,实现了每秒10帧的处理速度。
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引用次数: 0
Collision-Free Reach-Avoid Differential Game of Multiple Underactuated Autonomous Surface Vehicles via Control Barrier Functions 基于控制障碍函数的多欠驱动自动驾驶地面车辆无碰撞到达-避免微分博弈
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-13 DOI: 10.1109/TIV.2025.3578928
Fangyuan Xu;Nan Gu;Zhouhua Peng;Bing Han;Weidong Zhang
This paper investigates a reach-avoid differential game between two groups of underactuated autonomous surface vehicles (ASVs) in a complex marine environment. All ASVs are assumed with the same resultant velocity, and every two defending ASVs are assigned to intercept a single attacking ASV. An optimal safe reach-avoid differential game guidance strategy is proposed to enable the defending ASVs to capture the attacking ASVs that intend to enter a target area without collisions. Firstly, a geometric approach is used to calculate the optimal capture position, and optimal strategies are proposed for both teams of ASVs to reach the capture position based on the differential game theory. In particular, the defenders in the same group can decide whether to cooperate in defense with groupmate or intercept the attacker individually online according to a orthogonal-line-related condition, ensuring that the attackers can be captured with higher efficiency. Secondly, to guarantee the safety during the game process, a quadratic programming problem based on control barrier functions (CBFs) is formulated subject to velocity constraints of the ASVs. Finally, an optimal safe game guidance law is proposed based on an auxiliary variable technique such that an underactuated ASV is able to execute the optimal game strategy and achieve the target area protection task. Optimality and safety analyses indicate that the designed reach-avoid strategies are multilaterally optimal and ensures system safety. Simulation results validate the effectiveness of the optimal safe reach-avoid differential game guidance strategy for area protection tasks.
研究了复杂海洋环境下两组欠驱动自主水面车辆(asv)之间的到达-避免差分博弈。假设所有ASV的合成速度相同,每两个防御ASV被分配拦截一个攻击ASV。提出了一种最优安全到达-避免微分博弈制导策略,使防御自动驾驶汽车能够捕获意图进入目标区域的攻击自动驾驶汽车而不发生碰撞。首先,采用几何方法计算最优捕获位置,并基于微分博弈论提出了两队asv到达捕获位置的最优策略;特别是,同一组内的防御者可以根据与正交线相关的条件,决定是与群友合作防御,还是单独在线拦截攻击者,以保证更高的效率捕获攻击者。其次,为了保证自动驾驶汽车在博弈过程中的安全,在自动驾驶汽车的速度约束下,建立了基于控制障碍函数的二次规划问题。最后,提出了一种基于辅助变量技术的最优安全博弈制导律,使欠驱动自动驾驶汽车能够执行最优博弈策略,完成目标区域保护任务。最优性和安全性分析表明,所设计的到达-避免策略是多边最优的,保证了系统的安全性。仿真结果验证了最优安全达-避差分博弈引导策略对区域保护任务的有效性。
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引用次数: 0
Lateral Control for Autonomous Vehicles: A Robust Bounded Back-Stepping Technique 自动驾驶汽车横向控制:一种鲁棒有界后退技术
IF 14.3 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-13 DOI: 10.1109/TIV.2025.3578935
Abdulrazzak Selman
In this paper, we propose a conceptually different backstepping approach to solve the global asymptotic stabilization problem for a class of nonlinear input-coupled systems with parameter uncertainties and both state and input constraints. This approach avoids both input-decoupling transformations and the cancellation of time derivatives of virtual control functions—steps that are typically required in conventional backstepping-based control designs for input-coupled systems. As a by-product, it broadens the applicability of existing backstepping techniques and significantly reduces the computational burden—a major obstacle for real-time implementation of these methods. The proposed approach relies on an innovative combination of control tools, including non-quadratic Lyapunov-like analysis, the concept of Input-to-State Stability (ISS), and the Invariance Principle, enabling the construction of a control law without quadratic (smooth) control Lyapunov functions—an advantage over standard Lyapunov-based designs, where constructing such functions is challenging in the presence of input constraints. Applied to the nonlinear lateral dynamics of autonomous vehicles, particularly in lane-keeping scenarios, it solves the lateral control and trajectory tracking problem, effectively addresses key limitations of standard backstepping designs, and demonstrates clear advantages over a representative existing method—proving its potential practical applicability in real-world control applications within dynamic and complex driving environments, such as lane-changing scenarios.
本文提出了一种概念上不同的反演方法,用于求解一类具有状态约束和输入约束的非线性输入耦合系统的全局渐近镇定问题。这种方法避免了输入解耦变换和虚拟控制函数的时间导数的消除,这两个步骤通常是输入耦合系统传统的基于反步的控制设计所需要的。作为副产品,它拓宽了现有反演技术的适用性,并显著降低了计算负担——这是这些方法实时实现的主要障碍。所提出的方法依赖于控制工具的创新组合,包括非二次类李雅普诺夫分析,输入到状态稳定性(ISS)的概念和不变性原理,使得没有二次(光滑)控制李雅普诺夫函数的控制律的构建成为可能,这比基于李雅普诺夫的标准设计有优势,在输入约束存在的情况下构建这样的函数是具有挑战性的。将其应用于自动驾驶车辆的非线性横向动力学,特别是在车道保持场景中,它解决了横向控制和轨迹跟踪问题,有效地解决了标准后退设计的关键局限性,并比具有代表性的现有方法展示了明显的优势,证明了其在动态和复杂驾驶环境(如变道场景)的实际控制应用中的潜在实际适用性。
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引用次数: 0
The Transactions on Intelligent Vehicles Information 智能车辆信息学报
IF 14 1区 工程技术 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE Pub Date : 2025-06-04 DOI: 10.1109/TIV.2024.3496233
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引用次数: 0
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IEEE Transactions on Intelligent Vehicles
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