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Optical Chemical Structure Recognition (OCSR) is critical for converting 2D molecular diagrams from printed literature into machine-readable formats. While Vision-Language Models have shown promise in end-to-end OCR tasks, their direct…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Haocheng Tang , Xingyu Dang , Junmei Wang

Academic documents are packed with texts, equations, tables, and figures, requiring comprehensive understanding for accurate Optical Character Recognition (OCR). While end-to-end OCR methods offer improved accuracy over layout-based…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Yu Sun , Dongzhan Zhou , Chen Lin , Conghui He , Wanli Ouyang , Han-Sen Zhong

Semantic segmentation, a pixel-level vision task, is developed rapidly by using convolutional neural networks (CNNs). Training CNNs requires a large amount of labeled data, but manually annotating data is difficult. For emancipating…

Computer Vision and Pattern Recognition · Computer Science 2019-04-22 Qi Wang , Junyu Gao , Xuelong Li

Modern visual recognition models often display overconfidence due to their reliance on complex deep neural networks and one-hot target supervision, resulting in unreliable confidence scores that necessitate calibration. While current…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Tianshui Chen , Weihang Wang , Tao Pu , Jinghui Qin , Zhijing Yang , Jie Liu , Liang Lin

This paper presents our methodology and findings from three tasks across Optical Character Recognition (OCR) and Document Layout Analysis using advanced deep learning techniques. First, for the historical Hebrew fragments of the Dead Sea…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Hylke Westerdijk , Ben Blankenborg , Khondoker Ittehadul Islam

Aligning generative real-world image super-resolution models with human visual preference is challenging due to the perception--fidelity trade-off and diverse, unknown degradations. Prior approaches rely on offline preference optimization…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Shijie Zhao , Xuanyu Zhang , Bin Chen , Weiqi Li , Qunliang Xing , Kexin Zhang , Yan Wang , Junlin Li , Li Zhang , Jian Zhang , Tianfan Xue

The development of large vision language models drives the demand for managing, and applying massive amounts of multimodal data, making OCR technology, which extracts information from visual images, increasingly popular. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Yufeng Zhong , Lei Chen , Xuanle Zhao , Wenkang Han , Liming Zheng , Jing Huang , Deyang Jiang , Yilin Cao , Lin Ma , Zhixiong Zeng

Optical proximity correction (OPC) is a widely-used resolution enhancement technique (RET) for printability optimization. Recently, rigorous numerical optimization and fast machine learning are the research focus of OPC in both academia and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Wenqian Zhao , Xufeng Yao , Ziyang Yu , Guojin Chen , Yuzhe Ma , Bei Yu , Martin D. F. Wong

Recent progress in deep learning has led to the development of Optical Character Recognition (OCR) systems which perform remarkably well. Most research has been around recurrent networks as well as complex gated layers which make the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Kartik Chaudhary , Raghav Bali

The project comes with the technique of OCR (Optical Character Recognition) which includes various research sides of computer science. The project is to take a picture of a character and process it up to recognize the image of that…

Computer Vision and Pattern Recognition · Computer Science 2021-11-11 Arkaprabha Basu , M. Sathya

We present Multimodal OCR (MOCR), a document parsing paradigm that jointly parses text and graphics into unified textual representations. Unlike conventional OCR systems that focus on text recognition and leave graphical regions as cropped…

By comparing the original and target prompts, we can obtain numerous editing pairs, each comprising an object and its corresponding editing target. To allow editability while maintaining fidelity to the input image, existing editing methods…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Zhen Yang , Ganggui Ding , Wen Wang , Hao Chen , Bohan Zhuang , Chunhua Shen

Unsupervised object-centric representation (OCR) learning has recently drawn attention as a new paradigm of visual representation. This is because of its potential of being an effective pre-training technique for various downstream tasks in…

Machine Learning · Computer Science 2024-02-27 Jaesik Yoon , Yi-Fu Wu , Heechul Bae , Sungjin Ahn

We investigate how to train a high quality optical character recognition (OCR) model for difficult historical typefaces on degraded paper. Through extensive grid searches, we obtain a neural network architecture and a set of optimal data…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Bernhard Liebl , Manuel Burghardt

Optical Character Recognition (OCR) on historical printings is a challenging task mainly due to the complexity of the layout and the highly variant typography. Nevertheless, in the last few years great progress has been made in the area of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Christian Reul , Dennis Christ , Alexander Hartelt , Nico Balbach , Maximilian Wehner , Uwe Springmann , Christoph Wick , Christine Grundig , Andreas Büttner , Frank Puppe

Recent progress in multimodal large language models (MLLMs) has substantially improved document understanding, yet strong optical character recognition (OCR) performance on surface metrics does not guarantee faithful preservation of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Yueru He , Xueqing Peng , Yupeng Cao , Yan Wang , Lingfei Qian , Haohang Li , Yi Han , Shuyao Wang , Ruoyu Xiang , Fan Zhang , Zhuohan Xie , Mingquan Lin , Prayag Tiwari , Jimin Huang , Guojun Xiong , Sophia Ananiadou

This paper proposes a new method, OFA-OCR, to transfer multimodal pretrained models to text recognition. Specifically, we recast text recognition as image captioning and directly transfer a unified vision-language pretrained model to the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Junyang Lin , Xuancheng Ren , Yichang Zhang , Gao Liu , Peng Wang , An Yang , Chang Zhou

PURPOSE: Deep learning methods for classifying prostate cancer (PCa) in ultrasound images typically employ convolutional networks (CNNs) to detect cancer in small regions of interest (ROI) along a needle trace region. However, this approach…

Ordinal regression is a fundamental problem within the field of computer vision, with customised well-trained models on specific tasks. While pre-trained vision-language models (VLMs) have exhibited impressive performance on various vision…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Yao Du , Qiang Zhai , Weihang Dai , Xiaomeng Li

In this paper, we propose a novel method based on character sequence-to-sequence models to correct documents already processed with Optical Character Recognition (OCR) systems. The main contribution of this paper is a set of strategies to…

Computation and Language · Computer Science 2022-01-26 Juan Ramirez-Orta , Eduardo Xamena , Ana Maguitman , Evangelos Milios , Axel J. Soto
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