Papers › CAFuser: Condition-Aware Multimodal Fusion for Robust Semantic Perception of Driving Scenes

CAFuser: Condition-Aware Multimodal Fusion for Robust Semantic Perception of Driving Scenes

14 Oct 2024arXiv:2410.10791archive 2025-07-28

Tim Broedermann, Christos Sakaridis, Yuqian Fu, Luc van Gool

Leveraging multiple sensors is crucial for robust semantic perception in autonomous driving, as each sensor type has complementary strengths and weaknesses. However, existing sensor fusion methods often treat sensors uniformly across all conditions, leading to suboptimal performance. By contrast, we propose a novel, condition-aware multimodal fusion approach for robust semantic perception of driving scenes. Our method, CAFuser, uses an RGB camera input to classify environmental conditions and generate a Condition Token that guides the fusion of multiple sensor modalities. We further newly introduce modality-specific feature adapters to align diverse sensor inputs into a shared latent space, enabling efficient integration with a single and shared pre-trained backbone. By dynamically adapting sensor fusion based on the actual condition, our model significantly improves robustness and accuracy, especially in adverse-condition scenarios. CAFuser ranks first on the public MUSES benchmarks, achieving 59.7 PQ for multimodal panoptic and 78.2 mIoU for semantic segmentation, and also sets the new state of the art on DeLiVER. The source code is publicly available at: https://github.com/timbroed/CAFuser.

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Tasks

Autonomous DrivingPanoptic SegmentationSemantic SegmentationSensor Fusion

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Panoptic Segmentation MUSES: MUlti-SEnsor Semantic perception dataset CAFuser (Swin-T) PQ 59.7 #1 of 2 Archive leaderboard report
Semantic Segmentation DELIVER CAFuser mIoU 67.8 #1 of 9 Archive leaderboard report
Semantic Segmentation DELIVER CAFuser test mIoU 55.6 #1 of 9 Archive leaderboard report
Semantic Segmentation DeLiVER CAFuser-CAA mIoU 68.6 #1 of 26 Archive leaderboard report
Semantic Segmentation DeLiVER test CAFuser mIoU 55.6 #1 of 1 Archive leaderboard report
Semantic Segmentation MUSES: MUlti-SEnsor Semantic perception dataset CAFuser (Swin-T) mIoU 78.2 #1 of 2 Archive leaderboard report

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