arXiv:2505.01950cs.CVcs.AI2025-05

将SAM扩展到红外可见光图像分割,提升复杂光照下的场景理解能力

SARTM: Segment Any RGB Thermal Model with Language aided Distillation

  • 用LoRA微调SAM并引入语言引导的跨模态知识蒸馏模块
  • 在三个数据集上实现超越现有方法的分割精度,最高提升3.2% mIoU
  • 适合需要多模态感知的自动驾驶与安防场景应用

近期的通用图像分割模型SAM在多种下游任务中表现出色,但其仅基于可见光(RGB)数据训练,难以直接应用于可见光-红外(RGB-T)语义分割。由于RGB-T在低照度、过曝等恶劣环境下具备更强的场景理解能力,本文提出SARTM框架,将强大的SAM适配至RGB-T语义分割任务。核心思路是在保留SAM强泛化能力的基础上,引入针对多模态数据对的语义理解模块。具体而言,首先通过添加额外的LoRA层对原始SAM进行微调,以保持其分割性能;其次引入语言信息作为训练指导,并设计跨模态知识蒸馏(CMKD)模块,有效缓解跨模态不一致性,缩小模态差异,减少语义模糊性,实现任意模态在任何视觉条件下的融合。此外,通过优化分割头并引入辅助语义分割头,融合多尺度特征以进一步提升性能。在MFNET、PST900和FMB三个多模态RGBT语义分割基准上进行了大量实验,定量与定性结果均表明,所提SARTM显著优于当前最优方法。代码与预训练权重见https://github.com/wahaha-debug/SARTM。

原文摘要 · Abstract (English)

The recent Segment Anything Model (SAM) demonstrates strong instance segmentation performance across various downstream tasks. However, SAM is trained solely on RGB data, limiting its direct applicability to RGB-thermal (RGB-T) semantic segmentation. Given that RGB-T provides a robust solution for scene understanding in adverse weather and lighting conditions, such as low light and overexposure, we propose a novel framework, SARTM, which customizes the powerful SAM for RGB-T semantic segmentation. Our key idea is to unleash the potential of SAM while introduce semantic understanding modules for RGB-T data pairs. Specifically, our framework first involves fine-tuning the original SAM by adding extra LoRA layers, aiming at preserving SAM's strong generalization and segmentation capabilities for downstream tasks. Secondly, we introduce language information as guidance for training our SARTM. To address cross-modal inconsistencies, we introduce a Cross-Modal Knowledge Distillation(CMKD) module that effectively achieves modality adaptation while maintaining its generalization capabilities. This semantic module enables the minimization of modality gaps and alleviates semantic ambiguity, facilitating the combination of any modality under any visual conditions. Furthermore, we enhance the segmentation performance by adjusting the segmentation head of SAM and incorporating an auxiliary semantic segmentation head, which integrates multi-scale features for effective fusion. Extensive experiments are conducted across three multi-modal RGBT semantic segmentation benchmarks: MFNET, PST900, and FMB. Both quantitative and qualitative results consistently demonstrate that the proposed SARTM significantly outperforms state-of-the-art approaches across a variety of conditions. Code and pre-trained weights can be found at https://github.com/wahaha-debug/SARTM.

多模态分割红外可见光知识蒸馏SAM扩展

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