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IEEE Proceedings. Intelligent Vehicles Symposium, 2005.最新文献

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Pedestrian detection using sparse Gabor filter and support vector machine 基于稀疏Gabor滤波和支持向量机的行人检测
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505166
Hong Cheng, N. Zheng, Junjie Qin
Vehicle warning and control systems are the key component of ITS. Pedestrian detection is an important research content of vehicle active safety. The central idea behind such pedestrian safety systems is to protect the pedestrian from injuries. In this paper, we address the problem of pedestrian represent and detection where the motion cue is not used. Inspired by the work proposed by Zehang Sun [2004], we proposed a pedestrian feature representation approach based on sparse Gabor filters (SGF) learning from examples. In the phase of pedestrian detection, we used support vector machine to detect the pedestrian. Promising results demonstrate the potential of the proposed framework.
车辆预警与控制系统是智能交通系统的关键组成部分。行人检测是车辆主动安全的重要研究内容。这种行人安全系统背后的核心思想是保护行人免受伤害。在本文中,我们解决了在不使用运动线索的情况下行人的表示和检测问题。受孙泽杭[2004]的启发,我们提出了一种基于稀疏Gabor滤波器(SGF)的行人特征表示方法。在行人检测阶段,我们使用支持向量机对行人进行检测。令人鼓舞的结果证明了所提出框架的潜力。
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引用次数: 93
System development and performance investigation of mobile ad-hoc networks in vehicular environments 车载环境下移动自组网系统开发与性能研究
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505119
Bing-Wen Chuang, J. Tarng, J. Lin, C. Wang
This paper presents the methodology of implementations and performance measurements of our mobile ad-hoc network (MANET) platforms. The work is prompted by the lack of published results concerning the issues associated with the implementation of MANET facilities on actual wireless networks, as opposed to results of simulation experiments. Our MANET is developed based on the settled IEEE 802.11b technology operating in the ad-hoc mode. The opportunity driven multiple access (ODMA), which is developed by IWICS Inc., is implemented on the platform and its performance has been examined through field tests along city streets. Based on the measurement results, ODMA-based MANET facilities are able to provide satisfactory wireless communication services in vehicular environments. The minimum data throughput of 20 kBytes/sec could be guaranteed in our testbed.
本文介绍了我们的移动自组织网络(MANET)平台的实现方法和性能测量。由于缺乏与在实际无线网络上实施MANET设施相关的问题的公开结果,而不是模拟实验的结果,因此促使了这项工作。我们的MANET是基于已确定的IEEE 802.11b技术在ad-hoc模式下运行而开发的。由IWICS公司开发的机会驱动多址(ODMA)技术已在该平台上实施,其性能已通过城市街道的现场测试进行了检验。测试结果表明,基于odma的MANET设施能够在车载环境下提供满意的无线通信服务。在我们的测试平台上,可以保证20 kBytes/sec的最小数据吞吐量。
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引用次数: 13
Environmental perception and situation assessment for an advanced highway assistant 高级公路辅助系统的环境感知与态势评估
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505148
K. Weiß, H. Philipps, T. To, A. Kirchner
Environmental perception through sensor fusion for automotive applications is an intensive research area. Since the advent of the first driver assistance systems researchers have worked on multi sensor systems that perceived the whole surrounding traffic scene. At Volkswagen research diverse sensor and fusion configurations have been under examination over the last few years. Currently a Highway Assistant is being under development that focuses on well structured environments and ultimately aims to automate certain driving tasks. This paper describes the perception part from sensors and sensor fusion up to situation and risk assessment.
基于传感器融合的环境感知技术在汽车领域的应用是一个研究热点。自第一批驾驶员辅助系统问世以来,研究人员一直致力于研究能够感知周围整个交通场景的多传感器系统。在过去的几年里,大众汽车的研究部门一直在研究各种传感器和融合配置。目前,高速公路助手(Highway Assistant)正在研发中,它专注于结构良好的环境,最终目标是实现某些驾驶任务的自动化。本文介绍了从传感器和传感器融合到态势和风险评估的感知部分。
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引用次数: 6
Hybrid electric motorcycle: a master-slave mode design 混合动力摩托车:主从模式设计
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505130
Chia-Chang Tong, Wu-Shun Jwo, Kun-Li Wen
This paper proposes a design and implementation of a master-slave mode, hybrid electric motorcycle (H.E.M.). The proposed hybrid electric motorcycle is a revised vehicle from a 50 C.C. motorcycle and designed to match up with a 100 C.C. motorcycle. In order to expedite the developing phase and lower down the cost, a master-slave tracking control method is utilized. A DC servo-motor is deployed to track the speed of the rear-wheel of the motorcycle and to provide more torque through power composite into the rear wheel so that the performance of hybrid electric motorcycle can be promoted. The advance of performance as well as the energy saving can both be expected. In road trip experiment, the H.E.M. prototype achieves an average gasoline mileage of 46 km/liter compared to the original 34 km/liter. The overall efficiency is about 35% lift. Experimental results confirm the feasibility and prosperities of the proposed hybrid electric motorcycle (H.E.M.).
本文提出了一种主从模式混合动力摩托车的设计与实现。拟议的混合动力电动摩托车是由50 cc摩托车改装而成的,旨在与100 cc摩托车相匹配。为了加快开发速度,降低成本,采用了主从跟踪控制方法。采用直流伺服电机跟踪摩托车后轮的速度,并通过动力复合向后轮提供更大的扭矩,从而提高混合动力摩托车的性能。性能的提高和节能都是可以预期的。在公路行驶试验中,H.E.M.原型车的平均汽油行驶里程达到了46公里/升,而原装车的平均汽油行驶里程为34公里/升。总效率约为35%升力。实验结果证实了所提出的混合动力摩托车的可行性和成功性。
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引用次数: 4
Sustainable ITS project overview: mixed reality traffic experiment space under interactive traffic environment for ITS 可持续ITS项目概述:ITS交互式交通环境下的混合现实交通实验空间
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505191
K. Ikeuchi, M. Kuwahara, Y. Suda, Y. Tanaka, E. Chung, T. Suzuki, M. Kagesawa, S. Tanaka, I. Nishikawa, Y. Takahashi, R. Horiguchi, T. Shiraishi, H. Hanabusa, H. Kawasaki, H. Ishikawa, K. Maruoka, K. Honda, M. Furukawa, M. Kano, H. Ueno, Y. Ohba, Y. Mashiyama, T. Oda, K. Kenmotsu, T. Yamamoto, M.O. Masaaki, M. Sakai, M. Tsuji
In this paper, we show the outline of our research on interactive traffic environment, under which we are developing mixed reality traffic experiment space. In order to develop sophisticated ITS applications, it is very important to analyze human factor, but there is few method to obtain human factor, thus, we have decided to create interactive traffic environment under which we can obtain human factors. As the first stage of our research, we have developed mixed reality traffic experiment space. It consists of real observation laboratory part and virtual experiment laboratory part. In the former part, we gather various real raw data to retrieve real environment model. In the later part, we present users more realistic driving environment based on the model. Based on this experiment space, we are going to proceed to the next stages, in which we design and evaluate sustainable ITS applications. For this purpose we have started sustainable ITS project at the university of Tokyo, collaborated among industry, government, and university.
在本文中,我们展示了我们对交互式交通环境的研究概况,在此基础上我们正在开发混合现实交通实验空间。为了开发复杂的ITS应用,分析人的因素是非常重要的,但是获取人的因素的方法很少,因此,我们决定创造一个交互式的交通环境,在这个环境下我们可以获得人的因素。作为我们研究的第一阶段,我们开发了混合现实交通实验空间。它由真实观测实验室部分和虚拟实验实验室部分组成。在前一部分中,我们收集各种真实的原始数据来检索真实的环境模型。在后面的部分,我们在模型的基础上为用户呈现更加真实的驾驶环境。基于这个实验空间,我们将进入下一阶段,我们将设计和评估可持续ITS应用。为此,我们在东京大学启动了可持续ITS项目,与工业界、政府和大学合作。
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引用次数: 4
Obstacle detection for start-inhibit and low speed driving 启动抑制和低速驾驶障碍检测
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505164
M. Bertozzi, A. Broggi, P. Medici, P. Porta, R. Vitulli
The work described in this paper has been developed in the framework of the integrated project APALACI-PReVENT, a research activity funded by the European Commission to contribute to road safety by developing and demonstrating preventive safety technologies and applications. The goal of the system presented in this work is the development of a vision system for detecting potential obstacles in front of a slowly moving or still vehicle. When the vehicle is still, a background subtraction approach is used assuming that the background keeps stationary for a limited amount of time; thus, a reference background is computed and used to detect changes into the scene. A different approach is used when the vehicle is moving. The system, by means of inertial sensors, can detect ego-motion and correct background information accordingly. A temporal stereo match technique, able to detect obstacles in moving situations, completes the system. According to experimental results, the proposed algorithm can be useful in different automotive applications, requiring real-time segmentation without assumptions on background motion.
本文所述的工作是在综合项目APALACI-PReVENT的框架内开展的,该项目是由欧洲委员会资助的一项研究活动,目的是通过发展和示范预防性安全技术和应用,促进道路安全。该系统的目标是开发一种视觉系统,用于检测缓慢移动或静止车辆前方的潜在障碍物。当车辆静止时,假设背景在有限的时间内保持静止,使用背景减法方法;因此,计算一个参考背景并用于检测场景的变化。当车辆移动时,使用不同的方法。该系统通过惯性传感器检测自我运动,并相应地校正背景信息。一个时间立体匹配技术,能够检测障碍物在移动的情况下,完成系统。实验结果表明,该算法可用于不同的汽车应用,需要在不假设背景运动的情况下进行实时分割。
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引用次数: 10
Practical automotive applications of Cramer-Rao bound analysis Cramer-Rao界分析在汽车中的实际应用
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505078
M. Rydstrom, E. Strom, A. Svensson, A. Urruela
The Cramer-Rao lower bound places a bound, in a mean squared sense, on the performance of all unbiased estimators. In this paper, as a base for discussion, we provide a straight forward derivation of such bounds for estimators of mobile node positions, operating on observations of distances between entities in an asynchronous network. While Cramer-Rao bound analysis is very common in the positioning community, it is mostly used for analytical evaluation of various estimators, for comparison purposes and for sensor information fusion. In this work, we present some more commercial and practical applications of these tools for performance evaluation. We first discuss the deployment of beacons throughout a transportation infrastructure as a first step towards providing global automotive, possibly GPS augmented, positioning services with applications such as collision warning and collision avoidance. We then move on to describe how the cost associated with the deployment of such beacons can be drastically reduced through relying on inter-node range measurements and a dynamic beaconing scheme we call the lighthouse scheme. We also present a method for complexity reduction in the estimation of relative node coordinates and evaluation of Cramer-Rao performance measures.
Cramer-Rao下界在均方意义上对所有无偏估计量的性能设置了一个界限。在本文中,作为讨论的基础,我们提供了移动节点位置估计器的这种边界的直接推导,操作在异步网络中实体之间的距离的观测。虽然Cramer-Rao界分析在定位界非常常见,但它主要用于各种估计器的分析评估,比较目的和传感器信息融合。在这项工作中,我们提出了这些工具在性能评估方面的一些更多的商业和实际应用。我们首先讨论在整个交通基础设施中部署信标,作为提供全球汽车(可能是GPS增强)定位服务的第一步,该服务具有碰撞警告和碰撞避免等应用。然后,我们继续描述如何通过依赖节点间距离测量和我们称为灯塔方案的动态信标方案来大幅降低与此类信标部署相关的成本。我们还提出了一种降低相对节点坐标估计和Cramer-Rao性能度量评估复杂性的方法。
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引用次数: 3
A photo-realistic driving simulation system for mixed-reality traffic experiment space 一种用于混合现实交通实验空间的逼真驾驶模拟系统
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505194
Shintaro Ono, †. KoichiOgawara, M. Kagesawa, Hiroshi Kawasaki, M. Onuki, Jun-ichi Abeki, ¶. ToruYano, ¶. MasamiNerio, K. Honda, K. Ikeuchi, Ltd. Chodai Co.
In this paper, we propose an efficient and effective image generation system for "mixed reality traffic experiment space", an enhanced driving/traffic simulation system, which we have been developing for sustainable ITS project at the University of Tokyo. Conventional driving simulators represent their view by a set of polygon-based objects, which leads to less photo-reality and huge human costs for dataset construction. We introduce our image/geometry-based hybrid method to realize more photo-realistic view with less human cost at the same time. Images for datasets are captured from real world by multiple video cameras mounted on a data acquisition vehicle. The view for the system is created by synthesizing the image dataset. We mainly describe details on data acquisition and view rendering.
在本文中,我们提出了一种高效的图像生成系统,用于“混合现实交通实验空间”,这是一种增强的驾驶/交通模拟系统,我们一直在为东京大学的可持续ITS项目开发。传统的驾驶模拟器通过一组基于多边形的物体来表示他们的视图,这导致了较少的照片真实感和巨大的数据集构建成本。我们引入了基于图像和几何的混合方法,以更少的人力成本实现更逼真的视觉效果。数据集的图像由安装在数据采集车上的多个摄像机从现实世界捕获。系统的视图是通过综合图像数据集创建的。重点介绍了数据采集和视图呈现的细节。
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引用次数: 17
Learning based symmetric features selection for vehicle detection 基于学习的车辆检测对称特征选择
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505089
T. Liu, N. Zheng, L. Zhao, H. Cheng
This paper describes a symmetric features selection strategy based on statistical learning method for detecting vehicles with a single moving camera for autonomous driving. Symmetry is a good class of feature for vehicle detection, but the areas with high symmetry and threshold for segmentation is hard to be decided. Usually, the additional supposition is added artificially, and this will decrease the robustness of algorithms. In this paper, we focus on the problem of symmetric features selection using learning method for autonomous driving environment. Global symmetry and local symmetry are defined and used to construct a cascaded structure with a one-class classifier followed by a two-class classifier. Especially for local symmetric features, different symmetric areas in the rear view image of vehicles are searched through Adaboost based learning, and most useful symmetric features are extracted. The threshold for classification is also found through learning. The effective features selection strategy shows that the integration of global symmetry and local symmetry helps to improve the robustness of algorithms. Experimental results indicate the robustness and real-time performance of the algorithm.
本文提出了一种基于统计学习方法的对称特征选择策略,用于自动驾驶车辆的单运动摄像头检测。对称性是车辆检测的一个很好的特征,但对称性和分割阈值较高的区域很难确定。通常,额外的假设是人为添加的,这会降低算法的鲁棒性。本文研究了基于学习方法的自动驾驶环境下的对称特征选择问题。定义了全局对称和局部对称,并利用它们构造了一个单类分类器和一个双类分类器的级联结构。特别是对于局部对称特征,通过基于Adaboost的学习对车辆后视镜图像中不同的对称区域进行搜索,提取出最有用的对称特征。分类的阈值也是通过学习找到的。有效的特征选择策略表明,全局对称性和局部对称性的结合有助于提高算法的鲁棒性。实验结果表明,该算法具有较好的鲁棒性和实时性。
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引用次数: 56
A multiple detector approach to low-resolution FIR pedestrian recognition 低分辨率FIR行人识别的多检测器方法
Pub Date : 2005-06-06 DOI: 10.1109/IVS.2005.1505123
Mirko Miihlisch, M. Oberlander, O. Lohlein, D. Gavrila, Werner Ritter
In this paper we present a recognition scheme, which is both reliable and fast. The scheme comprises the simultaneous harmonized use of three powerful detection algorithms, the hyper permutation network (HPN), a hierarchical contour matching (HCM) algorithm and a cascaded classifier approach. Each algorithm is evaluated separately and afterwards, based on the evaluation results, the fusion of the detection results is performed by a particle filter approach.
本文提出了一种既可靠又快速的识别方案。该方案包括同时协调使用三种强大的检测算法,超置换网络(HPN),分层轮廓匹配(HCM)算法和级联分类器方法。对每一种算法分别进行评价,然后根据评价结果,采用粒子滤波方法对检测结果进行融合。
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引用次数: 49
期刊
IEEE Proceedings. Intelligent Vehicles Symposium, 2005.
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