← Search

Dezhi Peng

15 accepted papers

2026

OCR-Reasoning Benchmark: Unveiling the True Capabilities of MLLMs in Complex Text-Rich Image Reasoning

ICLR 2026poster

Recent advancements in multimodal slow-thinking systems have demonstrated remarkable performance across various visual reasoning tasks. However, their capabilities in text-rich image reasoning tasks remain understudied due to the absence of a dedicated and systematic benchmark. To address this gap,…

Cited by 0SourcecodeScholar
2026

URaG: Unified Retrieval and Generation in Multimodal LLMs for Efficient Long Document Understanding

AAAI 2026technical

Recent multimodal large language models (MLLMs) still struggle with long document understanding due to two fundamental challenges: information interference from abundant irrelevant content, and the quadratic computational cost of Transformer-based architectures. Existing approaches primarily fall in

Cited by 0SourcePDFScholar
2025

Predicting the Original Appearance of Damaged Historical Documents

AAAI 2025technical

Historical documents encompass a wealth of cultural treasures but suffer from severe damages including character missing, paper damage, and ink erosion over time. However, existing document processing methods primarily focus on binarization, enhancement, etc., neglecting the repair of these damages.…

2025

RedundancyLens: Revealing and Exploiting Visual Token Processing Redundancy for Efficient Decoder-Only MLLMs

ACL 2025finding

Current Multimodal Large Language Model (MLLM) architectures face a critical tradeoff between performance and efficiency: decoder-only architectures achieve higher performance but lower efficiency, while cross-attention-based architectures offer greater efficiency but lower performance. The key dist…

2024

DocRes: A Generalist Model Toward Unifying Document Image Restoration Tasks

CVPR 2024poster

Document image restoration is a crucial aspect of Document AI systems as the quality of document images significantly influences the overall performance. Prevailing methods address distinct restoration tasks independently leading to intricate systems and the incapability to harness the potential syn…

2024

FontDiffuser: One-Shot Font Generation via Denoising Diffusion with Multi-Scale Content Aggregation and Style Contrastive Learning

AAAI 2024technical

Automatic font generation is an imitation task, which aims to create a font library that mimics the style of reference images while preserving the content from source images. Although existing font generation methods have achieved satisfactory performance, they still struggle with complex characters…

2024

TongGu: Mastering Classical Chinese Understanding with Knowledge-Grounded Large Language Models

EMNLP 2024finding

Classical Chinese is a gateway to the rich heritage and wisdom of ancient China, yet its complexities pose formidable comprehension barriers for most modern people without specialized knowledge. While Large Language Models (LLMs) have shown remarkable capabilities in Natural Language Processing (NLP…

2024

Towards Modern Image Manipulation Localization: A Large-Scale Dataset and Novel Methods

CVPR 2024poster

In recent years image manipulation localization has attracted increasing attention due to its pivotal role in ensuring social media security. However effectively identifying forged regions remains an open challenge. The high acquisition cost and the severe scarcity of high-quality data are major fac…

2024

UPOCR: Towards Unified Pixel-Level OCR Interface

ICML 2024poster

Existing optical character recognition (OCR) methods rely on task-specific designs with divergent paradigms, architectures, and training strategies, which significantly increases the complexity of research and maintenance and hinders the fast deployment in applications. To this end, we propose UPOCR…

2024

ViTEraser: Harnessing the Power of Vision Transformers for Scene Text Removal with SegMIM Pretraining

AAAI 2024technical

Scene text removal (STR) aims at replacing text strokes in natural scenes with visually coherent backgrounds. Recent STR approaches rely on iterative refinements or explicit text masks, resulting in high complexity and sensitivity to the accuracy of text localization. Moreover, most existing STR met…

2023

ESTextSpotter: Towards Better Scene Text Spotting with Explicit Synergy in Transformer

ICCV 2023poster

In recent years, end-to-end scene text spotting approaches are evolving to the Transformer-based framework. While previous studies have shown the crucial importance of the intrinsic synergy between text detection and recognition, recent advances in Transformer-based methods usually adopt an implicit…

Cited by 37PDFcodeScholar
2023

M5HisDoc: A Large-scale Multi-style Chinese Historical Document Analysis Benchmark

NeurIPS 2023poster

Recognizing and organizing text in correct reading order plays a crucial role in historical document analysis and preservation. While existing methods have shown promising performance, they often struggle with challenges such as diverse layouts, low image quality, style variations, and distortions.…

2023

Revisiting Scene Text Recognition: A Data Perspective

ICCV 2023poster

This paper aims to re-assess scene text recognition (STR) from a data-oriented perspective. We begin by revisiting the six commonly used benchmarks in STR and observe a trend of performance saturation, whereby only 2.91% of the benchmark images cannot be accurately recognized by an ensemble of 13 re…

Cited by 81PDFcodeScholar
2023

Towards Robust Tampered Text Detection in Document Image: New Dataset and New Solution

CVPR 2023poster

Recently, tampered text detection in document image has attracted increasingly attention due to its essential role on information security. However, detecting visually consistent tampered text in photographed document images is still a main challenge. In this paper, we propose a novel framework to c…

2021

Implicit Feature Alignment: Learn To Convert Text Recognizer to Text Spotter

CVPR 2021poster

Text recognition is a popular research subject with many associated challenges. Despite the considerable progress made in recent years, the text recognition task itself is still constrained to solve the problem of reading cropped line text images and serves as a subtask of optical character recognit…

Cited by 16PDFcodeScholar