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2015 IEEE International Conference on Vehicular Electronics and Safety (ICVES)最新文献

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Robust multi-directional bicycle recognition on the rotation using the stereo vision 鲁棒的多向自行车识别对旋转采用立体视觉
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396890
Kenta Fukushima, Kousuke Matsushima
Many researches have worked for the development of automotive technologies, so as to realize a convenient and safety automotive society such as Advanced Safety Vehicle (ASV) and Traffic Monitoring System (TMS). As a result, traffic accidents have decreased as the years pass, and the number of the dead and injuries have been reduced. However, autonomous driving is not only required to detect bicycles around vehicles, but also expected to understand the behaviors of bicycles. In addition, since the proportion of bicycle accident shows a high percentage in the total traffic accident, it has been predicted an increase of the accident of the bicycle in the future. Therefore we propose a multi-directional bicycle recognition system using the distance information obtained by the stereo camera. In the proposed system, we divide the moving direction of the bicycle into three directions. In addition, we propose a robust feature extraction method on rotation in order to cope with the bicycle between each direction. Finally,we show the experimental results and verify the effectiveness of the proposed method.
先进安全车辆(Advanced safety Vehicle, ASV)、交通监控系统(Traffic Monitoring System, TMS)等汽车技术的发展为实现方便、安全的汽车社会做出了许多研究。因此,随着时间的流逝,交通事故减少了,死亡和受伤的人数也减少了。然而,自动驾驶不仅需要检测车辆周围的自行车,还需要了解自行车的行为。此外,由于自行车事故在总交通事故中所占的比例很高,因此可以预测未来自行车事故将会增加。因此,我们提出了一种利用立体摄像机获取的距离信息的多向自行车识别系统。在该系统中,我们将自行车的运动方向划分为三个方向。此外,我们提出了一种鲁棒的旋转特征提取方法,以应对各个方向之间的自行车。最后给出了实验结果,验证了所提方法的有效性。
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引用次数: 3
Message scheduling and timing analysis for flexray dynamic segment by considering slot-multiplexing 考虑时隙复用的flexray动态段消息调度与时序分析
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396893
Zhan-Yao Gu, Yarsun Hsu, Chi-Ming Lee
FlexRay is a communication protocol that combines event- and time-triggered communication to increase the schedulability and flexibility of message scheduling in current car systems. Because safety and reliability are particularly crucial for automotive systems, the worst-case response times of signals transmitted by electronic control units must be under their deadlines. To increase the bandwidth utilization, the slotmultiplexing (SM) mechanism that is allowable in protocol specification was adopted to schedule messages offline in the dynamic segment of the FlexRay protocol, and this mechanism was also considered in the timing analysis. The proposed method was feasible to calculate worst-case response time of message under any bus load when considered slot-multiplexing. Then the approach was applied to a Society of Automotive Engineers benchmark to ensure that all messages were schedulable. The simulation results revealed that by using slot-multiplexing, only 17 identifiers were used, which was less than 23 identifiers that were needed when the slot-multiplexing was not considered. It also improved the schedulability of dynamic segment with up to 27% improvement in bus bandwidth utilization.
FlexRay是一种通信协议,它结合了事件触发和时间触发的通信,以提高当前汽车系统中消息调度的可调度性和灵活性。由于安全性和可靠性对汽车系统尤为重要,因此电子控制单元传输的信号的最坏情况响应时间必须在规定期限内。为了提高带宽利用率,FlexRay协议采用协议规范允许的槽位复用(slotmultiplexing, SM)机制对动态段的消息进行脱机调度,并在时序分析中考虑了该机制。在考虑槽多路复用的情况下,该方法可以计算任意总线负载下消息的最坏情况响应时间。然后将该方法应用于汽车工程师协会的基准测试,以确保所有消息都是可调度的。仿真结果表明,采用时隙复用时,仅使用了17个标识符,而不考虑时隙复用时所需的标识符为23个。它还提高了动态段的可调度性,总线带宽利用率提高了27%。
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引用次数: 4
Super resolution of fisheye images captured by on-vehicle camera for visibility support 超分辨率的鱼眼图像捕获的能见度支持车载相机
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396905
T. Takano, Shintaro Ono, Y. Matsushita, Hiroshi Kawasaki, K. Ikeuchi
Fisheye cameras are widely adopted in the back view camera of vehicles and the surveillance camera. Compared to the normal digital cameras, their resolution and image quality are low. In this paper, we propose a method to restore the high resolution images from the fisheye camera by the reconstructed type of super resolution. First, we undistort the fisheye images and regularize these images. Then we super-resolve these regularized images. Blur kernel for super resolution includes the lens blur and the expansion and reduction by the undistortion. The experimental results confirms to the effectiveness of our method which applies to the images captured by the digital camera with fish-eye lens.
鱼眼摄像头广泛应用于车辆后视摄像头和监控摄像头中。与普通数码相机相比,其分辨率和图像质量较低。本文提出了一种利用超分辨率重构型恢复鱼眼相机高分辨率图像的方法。首先对鱼眼图像进行失真处理,并对其进行正则化处理。然后我们超分辨率这些正则化的图像。超分辨率模糊核包括镜头模糊和不失真的扩展和减少。实验结果验证了该方法的有效性,该方法适用于鱼眼镜头数码相机拍摄的图像。
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引用次数: 8
Reuse historic costs in dynamic programming to reduce computational complexity in the context of model predictive optimization 在模型预测优化的背景下,重用动态规划中的历史成本以降低计算复杂度
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396927
Tianyi Guan, C. Frey
Energy efficiency has become a major issue in trade, transportation and environment protection. While the next generation of zero emission propulsion systems still have difficulties in reaching similar travel distances as combustion engine propulsion systems, it is already possible to increase fuel efficiency in regular vehicles by applying a more fuel efficient driving behaviour. An adapted Dynamic Programming approach is used to calculate optimal behaviour profiles for the road ahead within a finite optimization horizon. The main purpose of this publication is the development of a strategy to reuse historic minimal costs in order to reduce the computational complexity of future optimization steps. The percent reduction is deterministic and increases with the discretization degree of the optimization horizon.
能源效率已成为贸易、运输和环境保护中的一个重大问题。虽然下一代零排放推进系统在达到与内燃机推进系统相似的行驶距离方面仍然存在困难,但通过采用更省油的驾驶行为,已经有可能提高普通车辆的燃油效率。采用自适应动态规划方法,在有限优化视界内计算前方道路的最优行为曲线。本出版物的主要目的是开发一种策略来重用历史最小成本,以减少未来优化步骤的计算复杂性。减少的百分比是确定性的,并且随着优化水平的离散化程度而增加。
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引用次数: 6
Description and technical specifications of cybernetic transportation systems: an urban transportation concept 控制论交通系统的描述和技术规范:一个城市交通概念
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396914
Luis Roldão, Joshué Pérez, D. González, V. M. Montero
The Cybernetic Transportation Systems (CTS) is an urban mobility concept based on two ideas: the car sharing and the automation of dedicated systems with door-todoor capabilities. In the last decade, many European projects have been developed in this context, where some of the most important are: Cybercars, Cybercars2, CyberMove, CyberC3 and CityMobil. Different companies have developed a first fleet of CTSs in collaboration with research centers around Europe, Asia and America. Considering these previous works, the FP7 project CityMobil2 is on progress since 2012. Its goal is to solve some of the limitations found so far, including the definition of the legal framework for autonomous vehicles on urban environment. This work describes the different improvements, adaptation and instrumentation of the CTS prototypes involved in European cities. Results show tests in our facilities at INRIARocquencourt (France) and the first showcase at Léon (Spain).
控制论交通系统(Cybernetic Transportation Systems, CTS)是一种基于两个理念的城市交通概念:汽车共享和具有门到门功能的专用系统的自动化。在过去的十年中,许多欧洲项目都是在这种背景下开发的,其中最重要的是:Cybercars, Cybercars2, CyberMove, CyberC3和CityMobil。不同的公司已经与欧洲、亚洲和美洲的研究中心合作开发了第一批CTSs。考虑到之前的工作,FP7项目CityMobil2自2012年以来一直在进行中。它的目标是解决迄今为止发现的一些限制,包括定义城市环境中自动驾驶汽车的法律框架。这项工作描述了不同的改进,适应和仪器的CTS原型涉及欧洲城市。结果显示,我们在inriarocqucourt(法国)的设施进行了测试,并在lsamon(西班牙)进行了首次展示。
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引用次数: 7
Evaluation of a low-overhead forwarding algorithm for platooning 一种低开销队列转发算法的评价
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396892
Marcus Larsson, Fredrik Warg, K. Karlsson, M. Jonsson
In this paper we present a novel message forwarding algorithm, the reachability matrix algorithm, for V2V communication in a platooning scenario. The algorithm uses a communication quality estimate to determine appropriate forwarding candidates. We show that the algorithm achieve a higher reliability in the communication compared to only using broadcast but still keeping the message intensity at a low level. The reachability matrix algorithm can decrease the ratio of missing a data age limit of 0.2 seconds from 18% to 11%, a decrease of 40%, while increasing the message intensity by only 21% compared to only using broadcast. The evaluation has been performed through simulation using input from real-life V2V measurements on heavy duty trucks in a platooning scenario.
本文提出了一种新的消息转发算法——可达矩阵算法,用于队列场景下的V2V通信。该算法使用通信质量估计来确定合适的转发候选者。结果表明,该算法在保持较低的消息强度的情况下,比仅使用广播实现了更高的通信可靠性。可达性矩阵算法可以将数据年龄限制为0.2秒的丢失率从18%降低到11%,降低了40%,而与仅使用广播相比,消息强度仅提高了21%。该评估是通过对重型卡车在队列行驶场景中实际V2V测量结果的模拟进行的。
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引用次数: 2
Study of the senior driver's driving conscious against the specification traffic situation and driving behaviors 老年驾驶员在规范交通状况下的驾驶意识及驾驶行为研究
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396884
Chisa Takahasi, Y. Nakano, Y. Iribe, H. Kawanaka, K. Oguri
Japan is one of the leading country of the aging society. For traffic as well, the number of the traffic accidents caused by senior driver is increasing year by year. So we have to make countermeasure for it ahead of the other countries. Currently, Japanese government moved into actions for example to have the campaign for returning of the senior drivers' licenses, or oblige senior driver who doesn't want to return his/her license to take a driving lessons at the driving school each 3 years. But to resolve this problem, society have to take a radically -new way to support senior drivers they can drive much more safely. It would be help for the senior people to keep healthy life. We had to 2 activity. One was a questioner research to understand what type of the traffic situations have the possibility of the traffic accident caused by senior drivers. The result was, it likely to be better to prioritize supporting for the decreasing visual cognitive ability and judgment for the countermeasures. Secondly, we analyzed senior drivers driving test results using driving simulator to see whether there is any variability of the performance among in senior drivers, and also to see their driving ability tendency.
日本是老龄化社会的主要国家之一。交通方面也是如此,由老年司机引起的交通事故数量逐年增加。因此,我们必须赶在其他国家之前制定对策。目前,日本政府采取了一些行动,比如开展了返还老年驾照的运动,或者要求不愿意返还驾照的老年司机每3年到驾校参加一次驾驶课程。但要解决这个问题,社会必须采取一种全新的方式来支持老年司机,他们可以更安全地驾驶。这将有助于老年人保持健康的生活。我们必须进行2次活动。一是通过提问者的研究,了解什么样的交通情况下有可能发生由高级驾驶员引起的交通事故。结果表明,对视觉认知能力下降和判断能力下降的优先支持可能会更好。其次,利用驾驶模拟器对老年驾驶员驾驶测试结果进行分析,观察老年驾驶员之间的驾驶表现是否存在可变性,以及老年驾驶员的驾驶能力倾向。
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引用次数: 1
A study on smooth automatic vehicle stopping control for suddenly-appeared obstacles 突然出现障碍物时车辆平稳自动停车控制研究
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396899
Ryo Gohara, H. Premachandra, Kiyotaka Kato
Various studies have been conducted regarding road obstacle detection and avoidance, but very few studies deal with the detection and avoidance of obstacles that suddenly and unexpectedly appear during vehicle operation. Therefore, we have been conducting studies on problem of detecting suddenly and unexpectedly appear obstacles. As an extension stage of those studies, this paper presents about automatic smooth stopping of vehicle using a fuzzy control system. The proposed system conducts stopping control of the vehicle depending on the distance to the obstacle and vehicle speed when obstacle is detected. The simulation experiments and actual experiments using a mobile robot on behalf of a vehicle were conducted regarding the proposal.
对于道路障碍物的检测与避障已经有了很多的研究,但是对于车辆运行过程中突然出现的、意外出现的障碍物的检测与避障的研究却很少。因此,我们一直在研究如何检测突然和意外出现的障碍物。作为上述研究的延伸,本文提出了一种基于模糊控制的车辆自动平稳停车方法。该系统在检测到障碍物时,根据与障碍物的距离和车速对车辆进行停车控制。针对该方案进行了仿真实验和车辆移动机器人的实际实验。
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引用次数: 8
Research on optimal bandwidth allocation for the scheduled traffic in ieee 802.1 AVB ieee 802.1 AVB中调度流量的最优带宽分配研究
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396889
Jaewoong Ko, Juho Lee, Chulsung Park, Sungkown Park
The existing In-Vehicle Network (IVN) is hard to support multimedia/infotainment service because it does not have enough bandwidth. In order to solve this problem, IEEE 802.1 Time Sensitive Network (TSN) has been developed. TSN standard defines the scheduled traffic which is based on the time-triggered communication. But the details of transmission period and Maximum Transmit Unit (MTU) size of the scheduled traffic have not been defined yet. In this paper, we simulated several cases in order to decide the optimal bandwidth allocation ratio for the scheduled traffic by adjusting scheduled traffic's MTU size.
现有车载网络(IVN)带宽不足,难以支持多媒体/信息娱乐服务。为了解决这一问题,IEEE 802.1时间敏感网络(TSN)应运而生。TSN标准定义了基于时间触发通信的计划流量。但是关于调度流量的传输周期和最大传输单元(Maximum Transmit Unit, MTU)大小的详细信息还没有定义。在本文中,我们模拟了几种情况,通过调整计划流量的MTU大小来确定计划流量的最佳带宽分配比例。
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引用次数: 12
Automatic calibration and registration of lidar and stereo camera without calibration objects 自动校准和配准激光雷达和立体相机,无需校准对象
Pub Date : 2015-11-01 DOI: 10.1109/ICVES.2015.7396923
V. John, Qian Long, Zheng Liu, S. Mita
Perception of the environment is an important task for intelligent vehicles, and to effectively perceive the environment, multiple sensors are often employed. In this paper, we propose to integrate the perceived data from 3D LIDAR and stereo camera using particle swarm optimization algorithm, without the aid of any external calibration aids. The proposed optimisation algorithm automatically calibrates and registers the LIDAR range image and stereo depth image, as a precursor to the sensor fusion. Multiple parameters are optimised by adopting a model-based approach during the parameter estimation phase. The evaluation of the parameters is performed using a novel depth-based cost function. During the sensor fusion phase, the optimised parameters are used to generate the LIDAR range image, which functions as the disparity range image for the Viterbi-based stereo disparity estimation. The disparity range image constrains the Viterbi search during the stereo disparity estimation. To evaluate our proposed algorithm, the calibration and registration algorithm is compared with baseline algorithms on multiple datasets acquired with varying illuminations. Compared to the baseline algorithms, we show that our proposed algorithm demonstrates better accuracy. We also demonstrate that integrating the LIDAR range image within the stereo's disparity estimation results in an improved disparity map with significant reduction in the computational complexity.
感知环境是智能汽车的重要任务,为了有效感知环境,通常需要使用多个传感器。在本文中,我们提出在不借助任何外部校准辅助的情况下,使用粒子群优化算法对三维激光雷达和立体相机的感知数据进行整合。提出的优化算法自动校准和注册激光雷达距离图像和立体深度图像,作为传感器融合的先驱。在参数估计阶段,采用基于模型的方法对多个参数进行优化。参数的评估是使用一种新的基于深度的成本函数来执行的。在传感器融合阶段,使用优化后的参数生成激光雷达距离图像,该图像作为视差距离图像用于基于viterbi的立体视差估计。视差范围图像约束了立体视差估计过程中的维特比搜索。为了评估我们提出的算法,在不同光照下获得的多个数据集上,将校准和配准算法与基线算法进行了比较。与基线算法相比,我们表明我们提出的算法具有更好的精度。我们还证明了将激光雷达距离图像集成到立体视差估计中可以得到改进的视差图,并显著降低了计算复杂度。
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引用次数: 9
期刊
2015 IEEE International Conference on Vehicular Electronics and Safety (ICVES)
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