arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.02785cs.CVstat.AP
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自主车辆定位:计算机视觉方法的概念验证

Localization of Autonomous Vehicles: Proof of Concept for A Computer Vision Approach

University of Maryland(马里兰大学)

Sara Zahedian, Kaveh Farokhi Sadabadi, Amir Nohekhan

摘要:

本文介绍了一种基于视觉的自主车辆(AV)的定位方法,在没有任何复杂的硬件系统,但一个单一的摄像头。视觉定位是指根据物体周围区域的视觉信息来确定物体位置的技术。本地化问题多年来一直备受关注。然而,视觉定位是一个相对较新的主题,在文学的运输。此外,在自动驾驶汽车的背景下,这种类型的本地化的不可避免的应用需要运输界特别关注这个问题。这项研究提出了一个两步定位方法,需要一个数据库的地理标记的图像和一个摄像头安装在车辆上,可以拍照,而汽车正在移动。第一步是图像检索,使用SIFT局部特征描述符,通过图像匹配找到车辆的初始位置。下一步是利用卡尔曼滤波器来估计车辆在移动时的更精确位置。所介绍方法的所有阶段都使用不同的Python库作为一个完整的系统来实现。该系统在KITTI数据集上进行了测试,并在找到车辆的最终位置时显示出2米的平均精度。

英文摘要:

This paper introduces a visual-based localization method for autonomous vehicles (AVs) that operate in the absence of any complicated hardware system but a single camera. Visual localization refers to techniques that aim to find the location of an object based on visual information of its surrounding area. The problem of localization has been of interest for many years. However, visual localization is a relatively new subject in the literature of transportation. Moreover, the inevitable application of this type of localization in the context of autonomous vehicles demands special attention from the transportation community to this problem. This study proposes a two-step localization method that requires a database of geotagged images and a camera mounted on a vehicle that can take pictures while the car is moving. The first step which is image retrieval uses SIFT local feature descriptor to find an initial location for the vehicle using image matching. The next step is to utilize the Kalman filter to estimate a more accurate location for the vehicle as it is moving. All stages of the introduced method are implemented as a complete system using different Python libraries. The proposed system is tested on the KITTI dataset and has shown an average accuracy of 2 meters in finding the final location of the vehicle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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