arXiv:2509.17049cs.CV2025-09ICML被引 1

用可学习查询生成带属性感知的哈希码,提升细粒度图像检索精度。

Learning Attribute-Aware Hash Codes for Fine-Grained Image Retrieval via Query Optimization

  • 通过可学习查询捕捉图像属性信息,让每位哈希位对应具体视觉特征。
  • 在低比特哈希下仍保持高检索准确率,尤其在CUB-200-2011等数据集上超越现有方法。
  • 适合需要解释性与高区分度的细粒度图像检索场景,如物种识别。

细粒度哈希已成为快速高效图像检索的有力方案,尤其适用于视觉相似类别间需高区分度的场景。为使每个哈希位对应特定视觉属性,本文提出一种新方法,利用可学习查询实现属性感知的哈希码学习。该方法设计专用查询集,在哈希过程中捕捉并表示细微的属性级信息,从而提升各哈希位的可解释性与相关性。在此查询优化框架基础上,引入辅助分支以缓解低比特哈希常面临的复杂优化景观问题。该分支建模高阶属性交互,增强生成哈希码的鲁棒性与特异性。在基准数据集上的实验表明,本方法生成的属性感知哈希码在检索准确率和鲁棒性上持续优于当前最优技术,尤其在低比特情况下表现突出,凸显其在细粒度图像哈希任务中的潜力。

原文摘要 · Abstract (English)

Fine-grained hashing has become a powerful solution for rapid and efficient image retrieval, particularly in scenarios requiring high discrimination between visually similar categories. To enable each hash bit to correspond to specific visual attributes, we propoe a novel method that harnesses learnable queries for attribute-aware hash codes learning. This method deploys a tailored set of queries to capture and represent nuanced attribute-level information within the hashing process, thereby enhancing both the interpretability and relevance of each hash bit. Building on this query-based optimization framework, we incorporate an auxiliary branch to help alleviate the challenges of complex landscape optimization often encountered with low-bit hash codes. This auxiliary branch models high-order attribute interactions, reinforcing the robustness and specificity of the generated hash codes. Experimental results on benchmark datasets demonstrate that our method generates attribute-aware hash codes and consistently outperforms state-of-the-art techniques in retrieval accuracy and robustness, especially for low-bit hash codes, underscoring its potential in fine-grained image hashing tasks.

细粒度检索哈希编码属性感知查询学习

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