Beat: Bi-directional One-to-Many Embedding Alignment for Text-based Person Retrieval

• URL: http://arxiv.org/abs/2406.05620v1
• Date: Sun, 9 Jun 2024 03:06:55 GMT
• Title: Beat: Bi-directional One-to-Many Embedding Alignment for Text-based Person Retrieval
• Authors: Yiwei Ma, Xiaoshuai Sun, Jiayi Ji, Guannan Jiang, Weilin Zhuang, Rongrong Ji,
• Abstract summary: Text-based person retrieval (TPR) is a challenging task that involves retrieving a specific individual based on a textual description. Previous methods have attempted to align text and image samples in a modal-shared space. We propose an effective bi-directional one-to-many embedding paradigm that offers a clear optimization direction for each sample.
• Score: 66.61856014573742
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Text-based person retrieval (TPR) is a challenging task that involves retrieving a specific individual based on a textual description. Despite considerable efforts to bridge the gap between vision and language, the significant differences between these modalities continue to pose a challenge. Previous methods have attempted to align text and image samples in a modal-shared space, but they face uncertainties in optimization directions due to the movable features of both modalities and the failure to account for one-to-many relationships of image-text pairs in TPR datasets. To address this issue, we propose an effective bi-directional one-to-many embedding paradigm that offers a clear optimization direction for each sample, thus mitigating the optimization problem. Additionally, this embedding scheme generates multiple features for each sample without introducing trainable parameters, making it easier to align with several positive samples. Based on this paradigm, we propose a novel Bi-directional one-to-many Embedding Alignment (Beat) model to address the TPR task. Our experimental results demonstrate that the proposed Beat model achieves state-of-the-art performance on three popular TPR datasets, including CUHK-PEDES (65.61 R@1), ICFG-PEDES (58.25 R@1), and RSTPReID (48.10 R@1). Furthermore, additional experiments on MS-COCO, CUB, and Flowers datasets further demonstrate the potential of Beat to be applied to other image-text retrieval tasks.

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