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2011 IEEE Intelligent Vehicles Symposium (IV)最新文献

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Pedal error prediction by driver foot gesture analysis: A vision-based inquiry 基于驾驶员手势分析的踏板错误预测:基于视觉的查询
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940548
Cuong Tran, A. Doshi, M. Trivedi
Pedal errors have been reported as a cause of fatal traffic accidents. However it is not well understood why and when these pedal errors happen as well as how to mitigate them. In this paper, we study pedal error events in a real-world stop-and-go driving experiment, in which we quantitatively analyze foot behavior with measurements from embedded vehicle sensors (e.g. brake or acceleration pedal state) as well as a video input looking at the driver's foot. Our analysis shows some initial insights in factors influencing pedal errors (beside other possible causes like driver age, gender, and driver workload), including Sequential Effects and Cue Modality. We also develop a new vision-based approach for driver foot behavior analysis and use it to predict brake and acceleration pedal presses. Experimental results over twelve different subjects show that the proposed approach correctly detects pedal misapplications approximately 200ms before the actual press. This indicates the potential of applying this approach to predict and mitigate pedal errors in real-world driving.
据报道,踏板错误是导致致命交通事故的原因。然而,目前尚不清楚这些踏板错误发生的原因和时间,以及如何减轻它们。在本文中,我们研究了现实中走走停停驾驶实验中的踏板错误事件,其中我们通过嵌入式车辆传感器(例如制动或加速踏板状态)以及查看驾驶员脚的视频输入来定量分析足部行为。我们的分析显示了一些影响踏板错误因素的初步见解(除了其他可能的原因,如驾驶员年龄、性别和驾驶员工作量),包括顺序效应和提示模态。我们还开发了一种新的基于视觉的驾驶员足部行为分析方法,并将其用于预测制动和加速踏板按压。在12个不同的实验对象上的实验结果表明,该方法可以在实际按压前约200ms正确检测踏板误操作。这表明了在现实驾驶中应用这种方法来预测和减轻踏板错误的潜力。
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引用次数: 34
Fusion of laserscannner and video based lanemarking detection for robust lateral vehicle control and lane change maneuvers 基于激光扫描仪和视频的车道标记检测鲁棒横向车辆控制和变道机动
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940424
Florian Homm, N. Kaempchen, Darius Burschka
The knowledge about lanes and the exact position on the road is fundamental for many advanced driver assistance systems. In this paper, a novel iterative histogram based approach with occupancy grids for the detection of multiple lanes is proposed. In highway scenarios, our approach is highly suitable to determine the correct number of all existing lanes on the road. Additionally, the output of the laserscannner based lane detection is fused with a production-available vision based system. It is shown that both sensor systems perfectly complement each other to increase the robustness of a lane tracking system. The achieved accuracy of the fusion system, the laserscannner and video based system is evaluated with a highly accurate DGPS to investigate the performance with respect to lateral vehicle control applications.
对于许多先进的驾驶员辅助系统来说,车道知识和道路上的准确位置是基础。本文提出了一种基于迭代直方图和占用网格的多车道检测方法。在高速公路场景中,我们的方法非常适合确定道路上所有现有车道的正确数量。此外,基于激光扫描仪的车道检测输出与生产可用的基于视觉的系统相融合。结果表明,两种传感器系统可以很好地互补,从而提高车道跟踪系统的鲁棒性。采用高精度DGPS对融合系统、激光扫描仪和基于视频的系统的实现精度进行了评估,以研究横向车辆控制应用的性能。
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引用次数: 26
Accurate visual odometry from a rear parking camera 后方停车摄像头的精确视觉里程测量
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940546
S. Lovegrove, A. Davison, J. Guzman
As an increasing number of automatic safety and navigation features are added to modern vehicles, the crucial job of providing real-time localisation is predominantly performed by a single sensor, GPS, despite its well-known failings, particularly in urban environments. Various attempts have been made to supplement GPS to improve localisation performance, but these usually require additional specialised and expensive sensors. Offering increased value to vehicle OEMs, we show that it is possible to use just the video stream from a rear parking camera to produce smooth and locally accurate visual odometry in real-time. We use an efficient whole image alignment approach based on ESM, taking account of both the difficulties and advantages of the fact that a parking camera views only the road surface directly behind a vehicle. Visual odometry is complementary to GPS in offering localisation information at 30Hz which is smooth and highly accurate locally whilst GPS is course but offers absolute measurements. We demonstrate our system in a large scale experiment covering real urban driving. We also present real-time fusion of our visual estimation with automotive GPS to generate a commodity-cost localisation solution which is smooth, accurate and drift free in global coordinates.
随着越来越多的自动安全和导航功能被添加到现代车辆中,提供实时定位的关键工作主要由单一传感器GPS完成,尽管它的缺点众所周知,特别是在城市环境中。已经有各种各样的尝试来补充GPS以提高定位性能,但是这些通常需要额外的专业和昂贵的传感器。我们为汽车oem提供了更高的价值,表明仅使用后置停车摄像头的视频流就可以实时生成平滑且精确的局部视觉里程计。我们使用了一种基于ESM的高效全图像对齐方法,同时考虑到停车摄像头只能看到车辆正后方的路面这一事实的困难和优点。视觉里程计是GPS的补充,它提供30Hz的定位信息,在本地是平滑和高度精确的,而GPS是路线,但提供绝对测量。我们在一个覆盖真实城市驾驶的大规模实验中展示了我们的系统。我们还提出了视觉估计与汽车GPS的实时融合,以生成商品成本定位解决方案,该解决方案在全球坐标中平滑,准确且无漂移。
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引用次数: 98
A generic video and radar data fusion system for improved target selection 一种改进目标选择的通用视频和雷达数据融合系统
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940469
Dennis Müller, J. Pauli, M. Meuter, Lali Ghosh, Stefan Müller-Schneiders
This paper presents an automotive video and radar data fusion framework that can be used as a preliminary stage of an automatic cruise control or collision mitigation by braking system. The fusion framework finds the optimal assignment of radar and camera target reports and provides improved state estimates for the fused targets. A sophisticated critical path selection is presented and used in the critical target selection module that aims to select the most relevant target. This module is capable of identifying targets that cut into the ego lane or cut out from the ego lane and incorporate that into the final target selection. The selected target is then compared to a state of the art algorithm within the radar sensor. Additional test drives were made to evaluate the performance of the new algorithm. Due to its low computational effort and the sensor independent design the presented algorithm is suitable to be used in the automotive embedded environment.
本文提出了一种汽车视频和雷达数据融合框架,可作为自动巡航控制或制动系统碰撞缓解的初步阶段。该融合框架找到雷达和相机目标报告的最优分配,并对融合后的目标提供改进的状态估计。提出了一种复杂的关键路径选择方法,并在关键目标选择模块中使用,目的是选择最相关的目标。该模块能够识别进入自我通道或脱离自我通道的目标,并将其纳入最终目标选择。然后将选定的目标与雷达传感器内的最先进算法进行比较。进行了额外的测试驱动来评估新算法的性能。该算法计算量小,与传感器无关,适合应用于汽车嵌入式环境。
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引用次数: 18
Objective testing of a cooperative intersection collision avoidance system for traffic signal and stop sign violation 交通信号与停车标志违章的协同交叉口避碰系统的客观测试
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940431
M. Maile, F. Ahmed-Zaid, Sue Bai, L. Caminiti, P. Mudalige, Michael Peredo, Z. Popovic
Crashes in intersections caused by a violation of traffic signals or stop signs amount to a significant portion of all vehicle crashes. The percentage of fatal crashes that occur at intersections remains constant over the years at nearly 22% of all crashes [1]. Vehicle-to Infrastructure (V2I) communications is a powerful technology that can address some of these crash scenarios. In order for tV2I based vehicle safety systems to be tested for correct functionality, and Field Operational Test FOT) readiness, Objective Test Procedures (OTP) have to be adopted. The Vehicle Safety Communications 2 (VSC- Consortium developed a Cooperative Intersection Collision Avoidance System - Violations (CICAS-V) and, in cooperation with the Research and Innovative Technology Administration's Intelligent Transportation Systems Joint Program Office and Of the National Highway Traffic Safety Administration (NHTSA) the United States Department of Transportation (USDOT). Using cooperatively developed OTP the performance of the CICAS-V was tested to determine if the system could be driven by naïve drivers on open roads. The CICAS-V was tested against all the OTP and successfully passed every test.
因违反交通信号或停车标志而导致的十字路口撞车事故占所有车辆撞车事故的很大一部分。发生在十字路口的致命车祸的比例多年来一直保持不变,几乎占所有车祸的22%[1]。车对基础设施(V2I)通信是一项强大的技术,可以解决其中一些碰撞场景。为了测试基于tV2I的车辆安全系统的正确功能,并进行现场操作测试(FOT)准备,必须采用客观测试程序(OTP)。车辆安全通信2 (VSC- Consortium)与美国研究与创新技术管理局智能交通系统联合项目办公室和美国交通部国家公路交通安全管理局(NHTSA)合作,开发了一种协作式交叉口碰撞避免系统(CICAS-V)。采用合作开发的OTP对CICAS-V的性能进行了测试,以确定该系统是否可以由naïve驾驶员在开放道路上驾驶。CICAS-V对所有OTP进行了测试,并成功通过了所有测试。
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引用次数: 15
Modeling and adaptation of stochastic driver-behavior model with application to car following 随机驾驶员行为模型的建模与自适应及其在汽车跟随中的应用
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940464
P. Angkititrakul, C. Miyajima, K. Takeda
In this paper, we present our recently developed stochastic driver-behavior model based on Gaussian mixture model (GMM) framework. The proposed driver-behavior modeling is employed to anticipate car-following behavior in terms of pedal control operations in response to the observable driving signals, such as the own vehicle velocity and the following distance to the leading vehicle. In addition, the proposed driver modeling allows adaptation scheme to enhance the model capability to better represent particular driving characteristics of interest (i.e., individual driving style) from the observed driving data themselves. Validation and comparison of the proposed driver-behavior models on realistic car-following data of several drivers showed the promising results. Furthermore, the adapted driver models showed consistent improvement over the unadapted driver models in both short-term and long-term predictions.
本文提出了基于高斯混合模型(GMM)框架的随机驾驶员行为模型。所提出的驾驶员行为模型是根据可观察到的驾驶信号,如自身车速和与前车的跟随距离,从踏板控制操作方面预测汽车跟随行为。此外,所提出的驾驶员建模允许自适应方案来增强模型能力,以便从观察到的驾驶数据本身更好地表示感兴趣的特定驾驶特征(即个人驾驶风格)。在多个驾驶员的实际跟车数据上对所提出的驾驶员行为模型进行了验证和比较,取得了良好的效果。此外,调整后的驱动因素模型在短期和长期预测方面均优于未调整的驱动因素模型。
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引用次数: 64
A model based approach to predict stream travel time using public transit as probes 一种基于模型的以公共交通为探针的流行程时间预测方法
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940413
S. Vasantha Kumar, L. Vanajakshi, S. Subramanian
Travel time is one of the most preferred traffic information by a wide variety of travelers. Travel time information provided through variable message signs at the roadside could be viewed as a traffic management strategy designed to encourage drivers to take an alternate route. At the same time, it could also be viewed as a traveler information service designed to ensure that the driver has the best available information based on which they can make travel decisions. In an Intelligent Transportation Systems (ITS) context, both the Advanced Traveler Information Systems (ATIS) and the Advance Traffic Management Systems (ATMS) rely on accurate travel time prediction along arterials or freeways. In India, currently there is no permanent system of active test vehicles or license plate matching techniques to measure stream travel time in urban arterials. However, the public transit vehicles are being equipped with Global Positioning System (GPS) devices in major metropolitan cities of India for providing the bus arrival time information at bus stops. However, equipping private vehicles with GPS to enable the stream travel time measurement is difficult due to the requirement of public participation. The use of the GPS equipped buses as probe vehicles and estimating the stream travel time is a possible solution to this problem. The use of public transit as probes for travel time estimation offers advantages like frequent trips during peak hours, wide range network coverage, etc. However, the travel time characteristics of public transit buses are influenced by the transit characteristics like frequent acceleration, deceleration and stops due to bus stops besides their physical characteristics. Also, the sample size of public transit is less when compared to the total vehicle population. Thus mapping the bus travel time to stream travel time is a real challenge and this difficulty is more complex in traffic conditions like in India with its heterogeneity and lack of lane discipline. As a pilot study, a model based approach using the Kalman filtering technique to predict stream travel time from public transit is carried out in the present study. Since it is only a pilot study, only twowheeled vehicles have been considered as they constitute a major proportion in the study area. The prediction scheme is corroborated using field data collected by carrying GPS units in two-wheelers traveling along with the buses under consideration. The travel time estimates from the model were compared with the manually observed travel times and the results are encouraging.
旅行时间是各种旅行者最喜欢的交通信息之一。通过路边的可变信息标志提供的行驶时间信息可以被视为一种交通管理策略,旨在鼓励司机选择另一条路线。与此同时,它也可以被视为一种旅行者信息服务,旨在确保司机拥有最佳的可用信息,并据此做出旅行决定。在智能交通系统(ITS)的背景下,高级旅客信息系统(ATIS)和高级交通管理系统(ATMS)都依赖于沿主干道或高速公路的准确旅行时间预测。在印度,目前还没有永久性的主动测试车辆系统或车牌匹配技术来测量城市主干道上的车流行驶时间。然而,印度主要大城市的公共交通车辆都配备了全球定位系统(GPS)设备,以便在公交车站提供公交车到达时间信息。然而,由于公众参与的要求,为私家车辆配备GPS以实现流旅行时间的测量是困难的。利用配备GPS的公交车作为探测车,估算流行驶时间是解决这一问题的一种可能方法。使用公共交通工具作为出行时间估计的探针,具有在高峰时段频繁出行、网络覆盖范围广等优点。而公交车辆的行驶时间特性除了受其自身物理特性的影响外,还受到公交站点频繁加、减速、停车等交通特性的影响。此外,与车辆总数相比,公共交通的样本量较小。因此,将公交车行驶时间映射到流行驶时间是一个真正的挑战,而在印度这样的交通条件下,这种困难更加复杂,因为它的异质性和缺乏车道纪律。作为一项试点研究,本研究采用基于模型的卡尔曼滤波技术来预测公共交通流的旅行时间。由于这只是一项试点研究,因此只考虑了两轮车辆,因为它们在研究地区占主要比例。该预测方案通过携带GPS装置的两轮车与考虑中的公共汽车一起行驶收集的现场数据得到证实。将模型估计的行程时间与人工观测的行程时间进行了比较,结果令人鼓舞。
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引用次数: 24
Evaluation of different quality functions for road course estimation using imaging radar 成像雷达道路航向估计中不同质量函数的评价
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940536
Frederik Sarholz, J. Klappstein, Fabian Diewald, J. Dickmann, B. Radig
This work presents three different quality functions for road course estimation using an imaging radar sensor. The quality functions work on gridmap data. A gridmap integrates each measurement in chronological order. Range estimation is found out to be necessary on country roads and a solution is introduced. All quality functions are evaluated using a huge set of data consisting of highways and country roads. The driven trajectory is taken as ground truth for the evaluation. The results show that on highways the quality functions perform nearly equal. However on country roads there are differences. The huge error reduction achieved by the range estimation is pointed out. At the end the quality function performing best is determined.
这项工作提出了三种不同的质量函数的道路航向估计使用成像雷达传感器。质量函数对网格图数据起作用。网格图按时间顺序整合了每个测量值。指出了在乡村道路上进行距离估计的必要性,并提出了一种解决方法。所有的质量功能都是使用由高速公路和乡村道路组成的庞大数据集来评估的。将驱动轨迹作为评价的基础真值。结果表明,在高速公路上,质量函数基本相等。然而,在乡村道路上,情况有所不同。指出了距离估计能极大地减小误差。最后确定了性能最佳的质量函数。
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引用次数: 11
Using Dempster-Shafer-based modeling of object existence evidence in sensor fusion systems for advanced driver assistance systems 基于dempster - shafer的先进驾驶辅助传感器融合系统中物体存在证据建模
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940463
M. Munz, K. Dietmayer
In this contribution, we present an overview of modeling techniques for sensory existence evidence using the Dempster Shafer Theory of Evidence (DST). Several modeling aspects are examined. The purpose of this approach is to enhance the detection performance of a sensor fusion system in terms of detection rate versus false alarm rate. An integrated state and existence estimation algorithm is used which directly incorporates the DST-based sensory information. The advantages of this algorithm are evaluated using a sensor fusion and tracking system based on a large database of real-world sensor data.
在这篇文章中,我们介绍了使用Dempster Shafer证据理论(DST)的感官存在证据建模技术的概述。研究了几个建模方面。该方法的目的是在检测率和虚警率方面提高传感器融合系统的检测性能。使用了一种综合状态和存在估计算法,该算法直接结合了基于dst的感官信息。利用基于大型真实传感器数据数据库的传感器融合和跟踪系统,对该算法的优点进行了评估。
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引用次数: 8
Development of a cooperative system behavior for a highly automated vehicle guidance concept based on the Conduct-by-Wire principle 基于线传导原理的高度自动化车辆制导概念的协同系统行为开发
Pub Date : 2011-06-05 DOI: 10.1109/IVS.2011.5940437
S. Geyer, Stefan Hakuli, H. Winner, Benjamin Franz, M. Kauer
Conduct-by-Wire (CbW) is a research project which breaks away from today's vehicle guidance by shifting the vehicle control task from a stabilization level to a conducting level. Instead of continuous stabilization on a designated trajectory - using the conventional control elements for manual steering, braking and accelerating - a Conduct-by-Wire vehicle is controlled by means of maneuver commands. By keeping the driver in the loop, the vehicle guidance is cooperatively shared between the driver and the automation. This article introduces an approach for the analysis of realizable automation levels and the design of a cooperative system behavior depending on the interaction concept between the human driver and the automation. Following a top-down approach, different driving scenarios are systematically analyzed as to the information needs that occur. This approach builds the basis for assessing the technical feasibility of a maneuver-based vehicle guidance concept based on the Conduct-by-Wire principle.
线传控制(CbW)是一项脱离当前车辆制导的研究课题,将车辆控制任务从稳定层面转移到导电层面。与传统的手动转向、制动和加速控制系统在指定轨迹上的持续稳定不同,线控汽车是通过机动命令来控制的。通过将驾驶员保持在环路中,车辆引导在驾驶员和自动化之间协同共享。本文介绍了一种基于人机交互概念的可实现自动化水平分析和协同系统行为设计方法。遵循自顶向下的方法,系统地分析不同的驾驶场景所发生的信息需求。该方法为评估基于线控原理的机动车辆制导概念的技术可行性奠定了基础。
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引用次数: 24
期刊
2011 IEEE Intelligent Vehicles Symposium (IV)
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