arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2202.08519cs.LGstat.ML
收藏

DeepHybrid:汽车雷达光谱和反射的深度学习,用于物体分类

DeepHybrid: Deep Learning on Automotive Radar Spectra and Reflections for Object Classification

Bosch Center for Artificial Intelligence(博世人工智能中心);Bosch Engineering GmbH(博世工程有限公司);Robert Bosch GmbH(罗伯特·博世有限公司)

Adriana-Eliza Cozma, Lisa Morgan, Martin Stolz, David Stoeckel, Kilian Rambach

摘要:

自动驾驶汽车需要准确地检测和分类物体和交通参与者。使用汽车雷达传感器进行可靠的物体分类已被证明是具有挑战性的。我们提出了一种结合经典雷达信号处理和深度学习算法的方法。雷达反射水平上的距离-方位信息用于从距离-多普勒频谱中提取感兴趣的稀疏区域。这被用作神经网络(NN)的输入,该网络对不同类型的静止和移动对象进行分类。我们提出了一种混合模型(DeepHybrid),它接收雷达光谱和反射属性作为输入,例如雷达截面。实验表明,与仅使用光谱的模型相比,这提高了分类性能。此外,神经结构搜索(NAS)算法被应用于找到一个资源有效和高性能的神经网络。NAS产生一个几乎一个数量级小于人工设计的NN,同时保持精度。所提出的方法可以用于例如改进自动紧急制动或防撞系统。

英文摘要:

Automated vehicles need to detect and classify objects and traffic participants accurately. Reliable object classification using automotive radar sensors has proved to be challenging. We propose a method that combines classical radar signal processing and Deep Learning algorithms. The range-azimuth information on the radar reflection level is used to extract a sparse region of interest from the range-Doppler spectrum. This is used as input to a neural network (NN) that classifies different types of stationary and moving objects. We present a hybrid model (DeepHybrid) that receives both radar spectra and reflection attributes as inputs, e.g. radar cross-section. Experiments show that this improves the classification performance compared to models using only spectra. Moreover, a neural architecture search (NAS) algorithm is applied to find a resource-efficient and high-performing NN. NAS yields an almost one order of magnitude smaller NN than the manually-designed one while preserving the accuracy. The proposed method can be used for example to improve automatic emergency braking or collision avoidance systems.

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。

↑