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arXiv · 2506.17608

HIRE: Lightweight High-Resolution Image Feature Enrichment for Multimodal LLMs

Nikitha SR·Aradhya Neeraj Mathur·Tarun Ram Menta·Rishabh Jain·Mausoom Sarkar
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Abstract

The integration of high-resolution image features in modern multimodal large language models has demonstrated significant improvements in fine-grained visual understanding tasks, achieving high performance across multiple benchmarks. Since these features are obtained from large image encoders like ViT, they come with a significant increase in computational costs due to multiple calls to these encoders. In this work, we first develop an intuition for feature upsampling as a natural extension of high-resolution feature generation. Through extensive experiments and ablations, we demonstrate how a shallow feature enricher can achieve competitive results with tremendous reductions in training and inference time as well as computational cost, with upto 1.5x saving in FLOPs.

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Nikitha SR, Aradhya Neeraj Mathur, Tarun Ram Menta, Rishabh Jain, Mausoom Sarkar. 2025-06-21. HIRE: Lightweight High-Resolution Image Feature Enrichment for Multimodal LLMs. https://arxiv.org/abs/2506.17608

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