TOP-ReID: Multi-spectral Object Re-Identification with Token Permutation

• URL: http://arxiv.org/abs/2312.09612v1
• Date: Fri, 15 Dec 2023 08:54:15 GMT
• Title: TOP-ReID: Multi-spectral Object Re-Identification with Token Permutation
• Authors: Yuhao Wang and Xuehu Liu and Pingping Zhang and Hu Lu and Zhengzheng Tu and Huchuan Lu
• Abstract summary: We propose a cyclic token permutation framework for multi-spectral object ReID, dubbled TOP-ReID. We also propose a Token Permutation Module (TPM) for cyclic multi-spectral feature aggregation. Our proposed framework can generate more discriminative multi-spectral features for robust object ReID.
• Score: 64.65950381870742
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multi-spectral object Re-identification (ReID) aims to retrieve specific objects by leveraging complementary information from different image spectra. It delivers great advantages over traditional single-spectral ReID in complex visual environment. However, the significant distribution gap among different image spectra poses great challenges for effective multi-spectral feature representations. In addition, most of current Transformer-based ReID methods only utilize the global feature of class tokens to achieve the holistic retrieval, ignoring the local discriminative ones. To address the above issues, we step further to utilize all the tokens of Transformers and propose a cyclic token permutation framework for multi-spectral object ReID, dubbled TOP-ReID. More specifically, we first deploy a multi-stream deep network based on vision Transformers to preserve distinct information from different image spectra. Then, we propose a Token Permutation Module (TPM) for cyclic multi-spectral feature aggregation. It not only facilitates the spatial feature alignment across different image spectra, but also allows the class token of each spectrum to perceive the local details of other spectra. Meanwhile, we propose a Complementary Reconstruction Module (CRM), which introduces dense token-level reconstruction constraints to reduce the distribution gap across different image spectra. With the above modules, our proposed framework can generate more discriminative multi-spectral features for robust object ReID. Extensive experiments on three ReID benchmarks (i.e., RGBNT201, RGBNT100 and MSVR310) verify the effectiveness of our methods. The code is available at https://github.com/924973292/TOP-ReID.

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