Papers › MonoWAD: Weather-Adaptive Diffusion Model for Robust Monocular 3D Object Detection

MonoWAD: Weather-Adaptive Diffusion Model for Robust Monocular 3D Object Detection

23 Jul 2024arXiv:2407.16448archive 2025-07-28

Youngmin Oh, Hyung-Il Kim, Seong Tae Kim, Jung Uk Kim

Monocular 3D object detection is an important challenging task in autonomous driving. Existing methods mainly focus on performing 3D detection in ideal weather conditions, characterized by scenarios with clear and optimal visibility. However, the challenge of autonomous driving requires the ability to handle changes in weather conditions, such as foggy weather, not just clear weather. We introduce MonoWAD, a novel weather-robust monocular 3D object detector with a weather-adaptive diffusion model. It contains two components: (1) the weather codebook to memorize the knowledge of the clear weather and generate a weather-reference feature for any input, and (2) the weather-adaptive diffusion model to enhance the feature representation of the input feature by incorporating a weather-reference feature. This serves an attention role in indicating how much improvement is needed for the input feature according to the weather conditions. To achieve this goal, we introduce a weather-adaptive enhancement loss to enhance the feature representation under both clear and foggy weather conditions. Extensive experiments under various weather conditions demonstrate that MonoWAD achieves weather-robust monocular 3D object detection. The code and dataset are released at https://github.com/VisualAIKHU/MonoWAD.

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Tasks

3D Object DetectionAutonomous DrivingDenoisingMonocular 3D Object DetectionObjectObject Detectionobject-detection

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Foggy KITTI

Results from the paper archive 2025-07-28

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Methods

AttentionDiffusionFocusSoftmax

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