Modality-Decoupled RGB-Thermal Object Detector via Query Fusion

Fuente: arXiv
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Autores principales: Tian, Chao, Zhou, Zikun, Yang, Chao, Zhu, Guoqing, Zhong, Fu'an, He, Zhenyu
Formato: Preprint
Publicado: 2026
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author Tian, Chao
Zhou, Zikun
Yang, Chao
Zhu, Guoqing
Zhong, Fu'an
He, Zhenyu
author_facet Tian, Chao
Zhou, Zikun
Yang, Chao
Zhu, Guoqing
Zhong, Fu'an
He, Zhenyu
contents The advantage of RGB-Thermal (RGB-T) detection lies in its ability to perform modality fusion and integrate cross-modality complementary information, enabling robust detection under diverse illumination and weather conditions. However, under extreme conditions where one modality exhibits poor quality and disturbs detection, modality separation is necessary to mitigate the impact of noise. To address this problem, we propose a Modality-Decoupled RGB-T detection framework with Query Fusion (MDQF) to balance modality complementation and separation. In this framework, DETR-like detectors are employed as separate branches for the RGB and TIR images, with query fusion interspersed between the two branches in each refinement stage. Herein, query fusion is performed by feeding the high-quality queries from one branch to the other one after query selection and adaptation. This design effectively excludes the degraded modality and corrects the predictions using high-quality queries. Moreover, the decoupled framework allows us to optimize each individual branch with unpaired RGB or TIR images, eliminating the need for paired RGB-T data. Extensive experiments demonstrate that our approach delivers superior performance to existing RGB-T detectors and achieves better modality independence.
format Preprint
id arxiv_https___arxiv_org_abs_2601_08458
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Modality-Decoupled RGB-Thermal Object Detector via Query Fusion
Tian, Chao
Zhou, Zikun
Yang, Chao
Zhu, Guoqing
Zhong, Fu'an
He, Zhenyu
Computer Vision and Pattern Recognition
The advantage of RGB-Thermal (RGB-T) detection lies in its ability to perform modality fusion and integrate cross-modality complementary information, enabling robust detection under diverse illumination and weather conditions. However, under extreme conditions where one modality exhibits poor quality and disturbs detection, modality separation is necessary to mitigate the impact of noise. To address this problem, we propose a Modality-Decoupled RGB-T detection framework with Query Fusion (MDQF) to balance modality complementation and separation. In this framework, DETR-like detectors are employed as separate branches for the RGB and TIR images, with query fusion interspersed between the two branches in each refinement stage. Herein, query fusion is performed by feeding the high-quality queries from one branch to the other one after query selection and adaptation. This design effectively excludes the degraded modality and corrects the predictions using high-quality queries. Moreover, the decoupled framework allows us to optimize each individual branch with unpaired RGB or TIR images, eliminating the need for paired RGB-T data. Extensive experiments demonstrate that our approach delivers superior performance to existing RGB-T detectors and achieves better modality independence.
title Modality-Decoupled RGB-Thermal Object Detector via Query Fusion
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2601.08458