Title
Behavior Planning of Autonomous Cars with Social Perception
Abstract
Autonomous cars have to navigate in dynamic environment which can be full of uncertainties. The uncertainties can come either from sensor limitations such as occlusions and limited sensor range, or from probabilistic prediction of other road participants, or from unknown social behavior in a new area. To safely and efficiently drive in the presence of these uncertainties, the decision-making and planning modules of autonomous cars should intelligently utilize all available information and appropriately tackle the uncertainties so that proper driving strategies can be generated. In this paper, we propose a social perception scheme which treats all road participants as distributed sensors in a sensor network. By observing the individual behaviors as well as the group behaviors, uncertainties of the three types can be updated uniformly in a belief space. The updated beliefs from the social perception are then explicitly incorporated into a probabilistic planning framework based on Model Predictive Control (MPC). The cost function of the MPC is learned via inverse reinforcement learning (IRL). Such an integrated probabilistic planning module with socially enhanced perception enables the autonomous vehicles to generate behaviors which are defensive but not overly conservative, and socially compatible. The effectiveness of the proposed framework is verified in simulation on an representative scenario with sensor occlusions.
Year
DOI
Venue
2019
10.1109/IVS.2019.8814223
2019 IEEE Intelligent Vehicles Symposium (IV)
Keywords
Field
DocType
integrated probabilistic planning module,autonomous vehicles,sensor occlusions,autonomous cars,dynamic environment,sensor limitations,limited sensor range,probabilistic prediction,road participants,unknown social behavior,planning modules,social perception scheme,distributed sensors,sensor network,individual behaviors,probabilistic planning framework,model predictive control,driving strategies
Social perception,Model predictive control,Control engineering,Inverse reinforcement learning,Artificial intelligence,Probabilistic logic,Engineering,Wireless sensor network,Perception
Journal
Volume
ISSN
ISBN
abs/1905.00988
1931-0587
978-1-7281-0561-1
Citations 
PageRank 
References 
2
0.37
3
Authors
4
Name
Order
Citations
PageRank
Liting Sun1289.26
Wei Zhan25113.79
Ching-Yao Chan37923.48
M. Tomizuka41464294.37