Autonomous driving: cognitive construction and situation understanding

Autonomous driving: cognitive construction and situation understanding

论文摘要

Autonomous vehicle is a kind of typical complex artificial intelligence system. In current research of autonomous driving, the most widely adopted technique is to use a basic framework of serial information processing and computations, which consists of four modules: perception, planning, decision-making, and control. However, this framework based on data-driven computing performs low computational efficiency,poor environmental understanding and self-learning ability. A neglected problem has long been how to understand and process environmental perception data from the sensors referring to the cognitive psychology level of the human driving process. The key to solving this problem is to construct a computing model with selective attention and self-learning ability for autonomous driving, which is supposed to possess the mechanism of memorizing, inferring and experiential updating, enabling it to cope with traffic scenarios with high noise, dynamic, and randomness. In addition, for the process of understanding traffic scenes,the efficiency of event-related mechanism is more significant than single-attribute scenario perception data.Therefore, an effective self-driving method should not be confined to the traditional computing framework of‘perception, planning, decision-making, and control’. It is necessary to explore a basic computing framework that conforms to human driver’s attention, reasoning, learning, and decision-making mechanism with regard to traffic scenarios and build an autonomous system inspired by biological intelligence. In this article, we review the basic methods and main progress in current data-driven autonomous driving technologies, deeply analyze the limitations and major problems faced by related algorithms. Then, combined with authors’ research, this study discusses how to implement a basic cognitive computing framework of self-driving with selective attention and an event-driven mechanism from the basic viewpoint of cognitive science. It further describes how to use multi-sensor and graph data with semantic information(such as traffic maps and a spatial correlation of events) to realize the associative representations of objects and drivable areas, as well as the intuitive reasoning method applied to understanding the situations in different traffic scenarios. The computing framework of autonomous driving based on a selective attention mechanism and intuitive reasoning discussed in this study can adapt to a more complex, open, and dynamic traffic environment.

论文目录

  • 1 Introduction
  • 2 Classic computing framework of autonomous vehicles
  •   2.1 From sensation to perception
  •   2.2 Motion planning and decision-making
  •     2.2.1 Motion planning–trajectory generation of autonomous vehicles
  •     2.2.2 Decision-making–optimal control of driving behavior
  • 3 Multi-source information fusion and event-driven situational cognition
  •   3.1 Multi-source information fusion
  •     3.1.1 Hierarchical fusion structure of multiple sensors
  •     3.1.2 Approaches to multi-source information fusion
  •   3.2 From data-driven perception to event-driven cognition
  •   3.3 Situational cognition based on multi-source information fusion
  • 4 Cognitive computing framework of autonomous vehicle based on selective attention model and event-driven mechanism
  •   4.1 Selective attention mechanism of traffic scene perception
  •   4.2 Intuitive reasoning for traffic situation understanding based on reinforcement learning and transfer learning
  • 5 Conclusion
  • 文章来源

    类型: 期刊论文

    作者: Shitao CHEN,Zhiqiang JIAN,Yuhao HUANG,Yu CHEN,Zhuoli ZHOU,Nanning ZHENG

    来源: Science China(Information Sciences) 2019年08期

    年度: 2019

    分类: 信息科技,工程科技Ⅱ辑

    专业: 汽车工业,自动化技术

    单位: Institute of Artificial Intelligence and Robotics, Xi’an Jiaotong University,National Engineering Laboratory for Visual Information Processing and Applications

    基金: supported by National Natural Science Foundation of China (Grant Nos. 61773312,61790563)

    分类号: U463.6;TP18

    页码: 75-101

    总页数: 27

    文件大小: 2290K

    下载量: 83

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