通过特征图质量评分,实现自动驾驶模型模块的独立评估与优化。
Decoupled Functional Evaluation of Autonomous Driving Models via Feature Map Quality Scoring
- 基于特征图与真值相似性构建双粒度动态加权评分系统。
- 在NuScenes数据集上提升3.89%的NDS指标,增强检测性能。
- 适合需要可解释性与模块化训练的自动驾驶研发人员。
端到端模型正成为自动驾驶感知与规划的主流。然而,中间功能模块缺乏显式监督信号,导致运行机制不透明、可解释性差,传统方法难以独立评估与训练这些模块。本文在特征图-真值表示相似性评估框架基础上,提出基于特征图收敛评分(FMCS)的独立评估方法。构建双粒度动态加权评分系统(DG-DWSS),形成统一量化指标——特征图质量得分,实现对功能模块生成特征图质量的全面评估。进一步开发基于CLIP的特征图质量评估网络(CLIP-FMQE-Net),结合特征-真值编码器与质量得分预测头,支持对功能模块生成特征图的实时质量分析。在NuScenes数据集上的实验表明,将评估模块融入训练后,3D目标检测性能提升3.89%的NDS。结果验证了该方法在提升特征表示质量与整体模型性能方面的有效性。
原文摘要 · Abstract (English)
End-to-end models are emerging as the mainstream in autonomous driving perception and planning. However, the lack of explicit supervision signals for intermediate functional modules leads to opaque operational mechanisms and limited interpretability, making it challenging for traditional methods to independently evaluate and train these modules. Pioneering in the issue, this study builds upon the feature map-truth representation similarity-based evaluation framework and proposes an independent evaluation method based on Feature Map Convergence Score (FMCS). A Dual-Granularity Dynamic Weighted Scoring System (DG-DWSS) is constructed, formulating a unified quantitative metric - Feature Map Quality Score - to enable comprehensive evaluation of the quality of feature maps generated by functional modules. A CLIP-based Feature Map Quality Evaluation Network (CLIP-FMQE-Net) is further developed, combining feature-truth encoders and quality score prediction heads to enable real-time quality analysis of feature maps generated by functional modules. Experimental results on the NuScenes dataset demonstrate that integrating our evaluation module into the training improves 3D object detection performance, achieving a 3.89 percent gain in NDS. These results verify the effectiveness of our method in enhancing feature representation quality and overall model performance.
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