Scenario Generation For Vehicles Using Deep Learning

Abstract: In autonomous driving, scenario generation can play a critical role when it comes to the verification of the autonomous driving software. Since uncertainty is a major component in driving, there cannot be just one right answer to a prediction for the trajectory or the behaviour, and it becomes important to account for and model that uncertainty. Several approaches have been tried for generating the future scenarios for a vehicle and one such pioneering work set out to model the behaviour of the vehicles probabilistically while tackling the challenges of representation, flexibility, and transferability within one system. The proposed system is called the Semantic Graph Network (SGN) which utilizes feedforward neural networks, Gated Recurrent Units (GRU), and a generative model called the Mixed Density Network to serve its purpose. This thesis project set out in the direction of the implementation of this research work in the context of highway merger scenario and consists of three parts. The first part involves basic data analysis for the employed dataset, whereas the second part involves a model that implements certain parts of the SGN including a variation of the context encoding and the Mixture Density Network. The third and the final part is an attempt to recreate the SGN itself. While the first and the second parts were implemented successfully, for the third part, only certain objectives could be achieved.