自动驾驶场景下因果显著性挖掘与抗干扰语义表征方法

By using self-attention mechanisms and recoding strategies to filter causal features in autonomous driving scenarios, the problems of causal confusion and noise interference are solved, improving the model's generalization ability and the safety and smoothness of trajectory planning.

CN122173877BActive Publication Date: 2026-07-17TONGJI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Filing Date
2026-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing autonomous driving scenario representation and planning methods suffer from problems such as causal confusion, difficulty in suppressing noise interference, and insufficient applicability of contrastive learning in complex environments, resulting in insufficient generalization ability and safety of models in unknown scenarios.

Method used

An attention-guided automated sampling mechanism and recoding strategy are adopted. The global importance ranking is performed through the self-attention mechanism to select key features with causal relationships. Category-aware automated positive and negative samples are constructed, and the recoding mechanism is used for context alignment. A contrastive loss function is constructed to distinguish key causal information from interference noise.

Benefits of technology

It significantly improves the model's generalization ability in unknown scenarios, enhances the safety and smoothness of trajectory planning, maintains the structural integrity of the driving scenario, and reduces the impact of causal confusion and noise interference.

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Abstract

本申请涉及自动驾驶场景表征与人工智能技术领域,特别涉及一种自动驾驶场景下因果显著性挖掘与抗干扰语义表征方法,包括以下步骤:分别对多模态场景要素进行编码,并将编码结果拼接,得到统一场景表示;将统一场景表示输入对比表征模块,基于自注意力机制的内部权重进行全局重要性排序;将场景元素划分为不同的类别,并对类别进行筛选,构建类别感知的自动化正负样本;基于重编码机制,对类别感知的自动化正负样本进行上下文对齐;构建对比损失函数,使模型在特征空间中区分关键因果信息与干扰噪声。本申请通过注意力引导的自动化采样机制与重编码策略,从高维异构的驾驶场景中筛选出具有因果关联的关键特征,并抑制环境中的伪相关噪声。
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