ReViCo: Unveiling the Limitations of VLMs in Visual Text Understanding via Error Correction

• URL: http://arxiv.org/abs/2608.27154v1
• Date: Thu, 27 Aug 2026 14:06:11 GMT
• Title: ReViCo: Unveiling the Limitations of VLMs in Visual Text Understanding via Error Correction
• Abstract summary: Vision Language Models (VLMs) have shown great success in general visual tasks, yet they still struggle to deeply understand text within images.<n>We introduce ReViCo, a benchmark designed to evaluate VLM text understanding through a novel task of visual text error correction.
• Score: 4.965105730448841
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Vision Language Models (VLMs) have shown great success in general visual tasks, yet they still struggle to deeply understand text within images. In this paper, we introduce ReViCo (Real Visual Correction), a benchmark designed to evaluate VLM text understanding through a novel task of visual text error correction. ReViCo challenges models to identify and fix text errors in real-world images, which requires a profound understanding of the interplay between visual text and its surrounding visual context. We benchmark various VLMs using two distinct paradigms: prompt-based strategy and targeted model training, both aimed at pushing the limits of current models. Our experiments reveal a striking performance gap between even the best VLMs and human, and further analysis also shows that most models struggle to accurately perceive the visual text, resulting in frequent correction errors. By highlighting these gaps, ReViCo provides a new benchmark foundation for developing more robust and text-aware VLMs.

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