公开(公告)号：US20230288223A1

公开(公告)日：2023-09-14

申请号：US17654382

申请日：2022-03-10

Applicant: NVIDIA Corporation

Inventor： Akash Chandra Shekar ,  Matthew Ashman ,  Vaibhav Thukral

IPC: G01C21/00 ,  G06V20/56 ,  G01C21/30 ,  G05D1/02

CPC classification number: G01C21/3819 ,  G06V20/588 ,  G01C21/30 ,  G05D1/0219 ,  G05D2201/0213

Abstract: In various examples, a method includes computing a current keyframe, the current keyframe being representative of an area around an autonomous vehicle at a current time based on map data. The method includes transforming a preceding keyframe to a coordinate frame of the autonomous vehicle at a first time prior to completing computation of the current keyframe to generate a first world model frame. The method includes transforming the preceding keyframe to the coordinate frame of the autonomous vehicle at a second time after the first time and prior to completing computation of the current keyframe to generate a second world model frame.

公开(公告)号：US12188779B2

公开(公告)日：2025-01-07

申请号：US17654382

申请日：2022-03-10

Applicant: NVIDIA Corporation

Inventor： Akash Chandra Shekar ,  Matthew Ashman ,  Vaibhav Thukral

IPC: G01C21/30 ,  G01C21/00 ,  G05D1/00 ,  G06V20/56

Abstract: In various examples, a method includes computing a current keyframe, the current keyframe being representative of an area around an autonomous vehicle at a current time based on map data. The method includes transforming a preceding keyframe to a coordinate frame of the autonomous vehicle at a first time prior to completing computation of the current keyframe to generate a first world model frame. The method includes transforming the preceding keyframe to the coordinate frame of the autonomous vehicle at a second time after the first time and prior to completing computation of the current keyframe to generate a second world model frame.

公开(公告)号：US20230258472A1

公开(公告)日：2023-08-17

申请号：US17670294

申请日：2022-02-11

Applicant: NVIDIA Corporation

Inventor： Matthew Ashman ,  Galen Collins ,  Russell Chreptyk

IPC: G01C21/00 ,  B60W60/00 ,  H04L67/146

CPC classification number: G01C21/3896 ,  G01C21/3815 ,  B60W60/001 ,  H04L67/146 ,  B60W2556/40 ,  B60W2556/45

Abstract: In various examples, a network of servers, such as a content delivery network, is used to provide a lightweight approach to hosting and serving HD map data to vehicles. The lightweight approach may allow for modifying various map components, such as tiles, layers, and/or segments. Modifying may include adding, removing, and/or updating the various components. A request to modify a first version of a High definition (HD) map may be received. Map data may be recorded that represents a second version of the HD map. A second request associated with the HD map may be received from a vehicle. Based on this second request, second map data representative of at least a portion of a layer may be identified on at least one server of the network of servers. The second map data may then be transmitted to the vehicle by the network of servers.

公开(公告)号：US12246718B2

公开(公告)日：2025-03-11

申请号：US17807474

申请日：2022-06-17

Applicant: NVIDIA Corporation

Inventor： Russell Chreptyk ,  Matthew Ashman ,  Andy Campbell ,  Tharun Battula ,  Vaibhav Thukral

IPC: G01C21/00 ,  B60W30/18 ,  G08G1/056 ,  B60W60/00

Abstract: Embodiments of the present disclosure relate to encoding of junction area information in map data. In particular, the encoding may include organizing vehicle paths that traverse through a junction area according to path groups and organizing contentions that influence behavior of vehicles traveling along the vehicle paths according to contention groups. In addition, the encoding may include generating direction data structures that associate respective path groups with one or more of the contention groups. In these or other embodiments, the map data that corresponds to the junction area may be updated with direction data structures.