A method and system for reconstructing real event geometry consistency injection in a scene

By employing controlled small-amplitude geometric correction and temporal binding methods, the consistency problem in injecting real events into simulation scenarios is solved, achieving efficient and accurate simulation scenario generation and multi-participant interaction relationship reproduction. It is applicable to mainstream simulation engines such as Unreal and Unity and supports large-scale simulation testing.

CN122818448APending Publication Date: 2026-09-25SHANGHAI WEILAN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202611010910.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-08
Publication Date
2026-09-25

AI Technical Summary

Technical Problem

Existing technologies, when injecting real traffic events into simulation scenarios, suffer from issues such as inconsistencies between trajectories and scene geometry, disruption of temporal relationships, and independent interaction relationships among multiple participants, leading to distorted simulation tests and low efficiency.

Method used

A controlled small-amplitude geometric correction method is adopted to map the real event trajectory to the world coordinate system of the reconstructed scene. Road surface projection and drivable area constraint checks are performed. Through controlled small-amplitude geometric correction and temporal binding, the timestamps, velocity change relationships and multi-participant interaction relationships of the original events are kept unchanged. Combined with static collision checks and anomaly rollback mechanisms, a simulation scene configuration that can be directly replayed is generated.

Benefits of technology

It achieves efficient and automated generation of simulation scenes, ensuring that the trajectory is consistent with the scene geometry, preserving the core value of real events, accurately reproducing the interaction relationships of multiple participants, and generating scenes that are compatible with mainstream simulation engines. It also provides detailed audit reports to ensure quality.

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Abstract

The application discloses a real event geometry consistency injection method and system in a reconstructed scene, and belongs to the technical field of automatic driving simulation scene construction and event reuse. The method maps a real event trajectory to a unified world coordinate of a reconstructed scene, performs road surface projection, controlled small-scale geometry correction and multi-participant time sequence binding, solves the playback distortion problem caused by the inconsistency between the trajectory and the scene geometry on the premise of preserving the original event time semantics and interaction semantics. The system comprises a data reading module, a coordinate mapping module, a geometry correction module, a time sequence binding module, a collision checking module and an output module. The application greatly improves the generation efficiency and authenticity of automatic driving simulation scenario assets, and is suitable for real event reuse and simulation testing of various traffic scenes.
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