Trajectory point fitting methods, apparatus, electronic devices, and readable storage media
By generating cubic spline curves based on trajectory point sets and distance increments, the problem of untimely vehicle tracking caused by high computational load in existing technologies is solved, enabling faster path tracking response in intelligent driving.
CN115618169BActive Publication Date: 2026-03-06BEIJING JINGWEI HIRAIN TECH CO INC
1 Cites 0 Cited by
Patent Information
- Application Number
- CN202211033218.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-26
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2042-08-26
AI Technical Summary
Technical Problem
Existing technologies require a large amount of computation to generate vehicle trajectory paths, resulting in untimely vehicle tracking and failing to meet the needs of intelligent driving control algorithms.
Method used
By generating at least two sets of cubic spline curves based on the trajectory point set and the distance increment, the first and second derivatives of the curves are ensured to be continuous, and the predetermined derivative continuity condition is satisfied at the endpoints, thus generating a target continuous curve as a vehicle reference path.
Benefits of technology
While ensuring curve smoothness, the amount of data processing was reduced, and the vehicle tracking response speed was improved.
✦ Generated by Eureka AI based on patent content.
Abstract
This application provides a trajectory point fitting method, apparatus, electronic device, and readable storage medium. Based on the straight-line distance between any adjacent trajectory points in the trajectory point set as the distance increment, multiple sets of cubic spline curves are generated based on the trajectory point set and the distance increment. The endpoints of the cubic spline curves satisfy a specific terminal reciprocal continuity condition, while the cubic spline curves of other trajectory points that are not endpoints are continuous in the first derivative and in the second reciprocal. Under the premise of ensuring the smoothness of the final curve, the amount of data processing is small, thereby improving the vehicle tracking response speed.
Need to check novelty before this filing date? Find Prior Art