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Linke Ouyang

4 accepted papers

2025

Image Over Text: Transforming Formula Recognition Evaluation with Character Detection Matching

CVPR 2025poster

Formula recognition presents significant challenges due to the complicated structure and varied notation of mathematical expressions. Despite continuous advancements in formula recognition models, the evaluation metrics employed by these models, such as BLEU and Edit Distance, still exhibit notable…

2025

OCR Hinders RAG: Evaluating the Cascading Impact of OCR on Retrieval-Augmented Generation

ICCV 2025poster

Retrieval-augmented Generation (RAG) enhances Large Language Models (LLMs) by integrating external knowledge to reduce hallucinations and incorporate up-to-date information without retraining. As an essential part of RAG, external knowledge bases are commonly built by extracting structured data from…

2025

OmniDocBench: Benchmarking Diverse PDF Document Parsing with Comprehensive Annotations

CVPR 2025poster

Document content extraction is a critical task in computer vision, underpinning the data needs of large language models (LLMs) and retrieval-augmented generation (RAG) systems. Despite recent progress, current document parsing methods have not been fairly and comprehensively evaluated due to the nar…

2024

InternLM-XComposer2-4KHD: A Pioneering Large Vision-Language Model Handling Resolutions from 336 Pixels to 4K HD

NeurIPS 2024poster

The Large Vision-Language Model (LVLM) field has seen significant advancements, yet its progression has been hindered by challenges in comprehending fine-grained visual content due to limited resolution. Recent efforts have aimed to enhance the high-resolution understanding capabilities of LVLMs, ye…