公开(公告)号：US20240092390A1

公开(公告)日：2024-03-21

申请号：US17949991

申请日：2022-09-21

Applicant: NVIDIA Corporation

Inventor： Jonah PHILION ,  Jeevan DEVARANJAN ,  Xue Bin PENG ,  Sanja FIDLER

IPC: B60W60/00 ,  B60W30/095 ,  B60W50/00 ,  B60W50/14

CPC classification number: B60W60/0015 ,  B60W30/0953 ,  B60W50/0097 ,  B60W50/14 ,  B60W60/0011 ,  B60W2050/146

Abstract: In various examples, systems and methods are presented for model-based trajectory simulation of agents in a simulated environment. Traffic simulators mimic reality so that autonomous or semi-autonomous vehicle design teams can validate driving models in environments that have diversity and complexity. In some embodiments, for a model-controlled agent of a simulation environment, a plurality of navigation probability distributions are generated, each of the plurality of navigation probability distributions defining a candidate trajectory for the agent to follow. A trajectory is selected for the agent based at least on at least one of the plurality of navigation probability distributions, and the agent is moved within the simulation environment based at least on the selected trajectory. In some embodiments, a search algorithm may be applied across multiple time-steps of a simulation, for example, to identify the occurrence of collision-free sequences of navigation probability distributions.

公开(公告)号：US20250111109A1

公开(公告)日：2025-04-03

申请号：US18664597

申请日：2024-05-15

Applicant: NVIDIA Corporation

Inventor： Jonah PHILION ,  Sanja FIDLER ,  Jason PENG

IPC: G06F30/27

Abstract: In various examples, systems and methods are disclosed relating to generating tokens for traffic modeling. One or more circuits can identify trajectories in a dataset, and generate actions from the identified trajectories. The one or more circuits can generate, based at least on the plurality of actions and at least one trajectory of the plurality of trajectories, a set of tokens representing actions to generate trajectories of one or more agents in a simulation. The one or more circuits may update a transformer model to generate simulated actions for simulated agents based at least on tokens generated from the trajectories in the dataset.