arXiv Computation and Language

Hierarchical Fine-Grained Cross-Modal Alignment via Dynamic Granularity Discovery and Optimal Transport

The paper introduces HFCMA, a hierarchical fine-grained cross‑modal alignment framework that transforms low‑level image patches and text tokens into adaptive visual regions and textual phrases through dynamic granularity discovery. It then performs structured region‑phrase matching using an entropy‑regularized optimal transport formulation, incorporating background debiasing, textual importance weighting, and prototype consistency regularization. Experiments on Flickr30K and MS‑COCO demonstrate that this approach improves fine‑grained image‑text retrieval by providing structured local alignment information and better discrimination of subtle semantic differences.

arXiv Computer Vision
Oct 16

Flow-CLIP: Image-Conditioned Residual Scoring for CompositionalImage-Text Matching

Flow-CLIP introduces a method to improve compositional image-text matching by refining global image-text alignment with image-conditioned changes in token–patch evidence. It combines Global Compatibility Calibration (GCC) for sentence-level similarity, Image-Conditioned Evidence Refinement (ICER) to incorporate visual patch context, and Cross-Image Margin Ranking (CIMR) to enhance ranking margins when images support correct descriptions. Experiments demonstrate that Flow-CLIP outperforms pretrained CLIP and other global alignment approaches on binding accuracy and reduces reliance on language priors.

By Minghong Wei, Enguang Zhu, Pu Cao, Lu Yang, Qing Song
arXiv Computer Vision
6d ago

Efficient Remote Sensing Image-Text Retrieval via Interaction-Free Recall and Text-Guided Reranking

Efficient Remote Sensing Image-Text Retrieval via Interaction-Free Recall and Text-Guided Reranking proposes a fast-then-fine (FTF) retrieval framework that first performs interaction-free multi-granular recall to quickly match query embeddings with pre-computed gallery embeddings, then refines the top‑K candidates using a parameter‑free text‑guided cross‑modal reranking module called the Balanced Text‑guided Interaction Block (BTIB). The method introduces an inter‑ and intra‑modal loss to jointly optimize cross‑modal alignment across multi‑granular representations. Experiments on public benchmarks show that FTF achieves competitive retrieval accuracy while significantly improving retrieval efficiency compared with existing methods.

By Xi Chen, Xu Chen, Xiamgyang Jia, Wei Wang, Xu Zhang, Zhenyuan Shun
arXiv Computation and Language
Sep 18

Redemption Score: A Multi-Modal Evaluation Framework for Image Captioning via Distributional, Perceptual, and Linguistic Signal Triangulation

The paper introduces Redemption Score (RS), a multi‑modal evaluation framework for image captioning that combines three complementary signals: Mutual Information Divergence for global image‑text alignment, DINO‑based perceptual similarity of cycle‑generated images for visual grounding, and LLM text embeddings for contextual similarity to human references. RS fuses these signals to provide a more holistic assessment, achieving a Kendall‑τ of 58.42 on Flickr8k and outperforming most prior methods. The framework demonstrates consistent performance across Conceptual Captions and MS COCO, offering a robust evaluation that captures both visual accuracy and text quality.

By Ashim Dahal, Ankit Ghimire, Saydul Akbar Murad, Nick Rahimi
Hugging Face Trending Papers
Jul 30

FiRE: Enhancing MLLMs with Fine-Grained Context Learning for Complex Image Retrieval

Due to their strong generalizable multimodal processing and reasoning capabilities, Multimodal Large Language Models (MLLMs) have demonstrated significant potential as universal image retrievers, effectively addressing diverse real-world image retrieval tasks. Nevertheless, pioneering studies, while promising, overlook the potential of fine-grained context modeling and disentangled fine-tuning objectives in enhancing MLLMs' retrieval performance, particularly for complex tasks such as long-text-to-image retrieval, visual dialog retrieval, and composed image retrieval (CIR).