arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2209.09348cs.CVcs.LG
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基于嵌入式中间信息的可见-红外身份识别

Visible-Infrared Person Re-Identification Using Privileged Intermediate Information

Laboratoire d’imagerie, de vision et d’intelligence artificielle (LIVIA)(成像、视觉与人工智能实验室(LIVIA));ETS Montreal(蒙特利尔高等工程技术学院)

Mahdi Alehdaghi, Arthur Josi, Rafael M. O. Cruz, Eric Granger

摘要:

可见红外人员重新识别(ReID)旨在通过RGB和IR摄像机网络识别同一个感兴趣的人。一些深度学习(DL)模型直接结合了这两种模式,以在联合表示空间中区分人。然而,由于RGB和IR模态之间的数据分布存在较大的域偏移,这种跨模态ReID问题仍然具有挑战性。本文介绍了一种用于创建中间虚拟域的新方法,该中间虚拟域充当两个主域(即,RGB和IR模式)。这个中间域被认为是特权信息(PI),是在测试时不可用的,并允许制定这个跨模态匹配任务作为一个问题,在特权信息(LUPI)下的学习。我们设计了一种新的方法来生成可见光和红外域之间的图像,通过中间领域自适应为训练深度ReID模型提供额外的信息。特别是,通过在训练过程中采用无颜色和多步三重损失目标,我们的方法提供了对大的可见-红外域偏移具有鲁棒性的共同特征表示空间。在具有挑战性的可见红外ReID数据集上的实验结果表明,我们提出的方法始终提高了匹配精度,在测试时没有任何计算开销。代码可从以下网址获得:\href{https://github.com/alehdaghi/Cross-Modal-Re-ID-via-LUPI}{https://github.com/alehdaghi/Cross-Modal-Re-ID-via-LUPI}

英文摘要:

Visible-infrared person re-identification (ReID) aims to recognize a same person of interest across a network of RGB and IR cameras. Some deep learning (DL) models have directly incorporated both modalities to discriminate persons in a joint representation space. However, this cross-modal ReID problem remains challenging due to the large domain shift in data distributions between RGB and IR modalities. % This paper introduces a novel approach for a creating intermediate virtual domain that acts as bridges between the two main domains (i.e., RGB and IR modalities) during training. This intermediate domain is considered as privileged information (PI) that is unavailable at test time, and allows formulating this cross-modal matching task as a problem in learning under privileged information (LUPI). We devised a new method to generate images between visible and infrared domains that provide additional information to train a deep ReID model through an intermediate domain adaptation. In particular, by employing color-free and multi-step triplet loss objectives during training, our method provides common feature representation spaces that are robust to large visible-infrared domain shifts. % Experimental results on challenging visible-infrared ReID datasets indicate that our proposed approach consistently improves matching accuracy, without any computational overhead at test time. The code is available at: \href{https://github.com/alehdaghi/Cross-Modal-Re-ID-via-LUPI}{https://github.com/alehdaghi/Cross-Modal-Re-ID-via-LUPI}

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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