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Typography and layout lead to the hierarchical organisation of text in words, text lines, paragraphs. This inherent structure is a key property of text in any script and language, which has nonetheless been minimally leveraged by existing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Lluis Gomez , Dimosthenis Karatzas

Incorporating linguistic knowledge can improve scene text recognition, but it is questionable whether the same holds for scene text spotting, which typically involves text detection and recognition. This paper proposes a method that…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Nguyen Nguyen , Yapeng Tian , Chenliang Xu

Handwritten document recognition (HDR) is one of the most challenging tasks in the field of computer vision, due to the various writing styles and complex layouts inherent in handwritten texts. Traditionally, this problem has been…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Mohammed Hamdan , Abderrahmane Rahiche , Mohamed Cheriet

Few-shot Hierarchical Text Classification (few-shot HTC) is a challenging task that involves mapping texts to a predefined tree-structured label hierarchy under data-scarce conditions. While current approaches utilize structural constraints…

Computation and Language · Computer Science 2026-04-20 Ke Xiong , Qian Wu , Wangjie Gan , Yuke Li , Xuhong Zhang

Understanding what linguistic components (e.g., phonological, semantic, and orthographic systems) modulate Chinese handwriting at the character, radical, and stroke levels remains an important yet understudied topic. Additionally, there is…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Zebo Xu , Shaoyun Yu , Mark Torrance , Guido Nottbusch , Nan Zhao , Zhenguang Cai

Recently, inspired by Transformer, self-attention-based scene text recognition approaches have achieved outstanding performance. However, we find that the size of model expands rapidly with the lexicon increasing. Specifically, the number…

Computer Vision and Pattern Recognition · Computer Science 2020-09-24 Bingcong Li , Xin Tang , Xianbiao Qi , Yihao Chen , Rong Xiao

Text Recognition is one of the challenging tasks of computer vision with considerable practical interest. Optical character recognition (OCR) enables different applications for automation. This project focuses on word detection and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Ebin Zacharias , Martin Teuchler , Bénédicte Bernier

Hierarchical Text Classification (HTC) involves assigning documents to labels organized within a taxonomy. Most previous research on HTC has focused on supervised methods. However, in real-world scenarios, employing supervised HTC can be…

Computation and Language · Computer Science 2026-05-18 Qianbo Zang , Christophe Zgrzendek , Igor Tchappi , Afshin Khadangi , Johannes Sedlmeir

Text-to-CAD code generation is a long-horizon task that translates textual instructions into long sequences of interdependent operations. Existing methods typically decode text directly into executable code (e.g., bpy) without explicitly…

Artificial Intelligence · Computer Science 2026-04-14 Shengjie Gong , Wenjie Peng , Hongyuan Chen , Gangyu Zhang , Yunqing Hu , Huiyuan Zhang , Shuangping Huang , Tianshui Chen

Generative retrieval employs sequence models for conditional generation of document IDs based on a query (DSI (Tay et al., 2022); NCI (Wang et al., 2022); inter alia). While this has led to improved performance in zero-shot retrieval, it is…

Information Retrieval · Computer Science 2025-02-27 Tongfei Chen , Ankita Sharma , Adam Pauls , Benjamin Van Durme

Chinese characters have a complex and hierarchical graphical structure carrying both semantic and phonetic information. We use this structure to enhance the text model and obtain better results in standard NLP operations. First of all, to…

Computation and Language · Computer Science 2014-05-22 Yannis Haralambous

Scene text recognition (STR) methods have demonstrated their excellent capability in English text images. However, due to the complex inner structures of Chinese and the extensive character categories, it poses challenges for recognizing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Qilong Li , Chongsheng Zhang

We implemented a high-performance optical character recognition model for classical handwritten documents using data augmentation with highly variable cropping within the document region. Optical character recognition in handwritten…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Joonmo Ahna , Taehong Jang , Quan Fengnyu , Hyungil Lee , Jaehyuk Lee , Sojung Lucia Kim

Overfitted image codecs like Cool-chic achieve strong compression by tailoring lightweight models to individual images, but their encoding is slow and computationally expensive. To accelerate encoding, Non-Overfitted (N-O) Cool-chic…

Image and Video Processing · Electrical Eng. & Systems 2025-09-24 Pep Borrell-Tatché , Till Aczel , Théo Ladune , Roger Wattenhofer

We present a method to leverage radical for learning Chinese character embedding. Radical is a semantic and phonetic component of Chinese character. It plays an important role as characters with the same radical usually have similar…

Computation and Language · Computer Science 2014-04-21 Yaming Sun , Lei Lin , Duyu Tang , Nan Yang , Zhenzhou Ji , Xiaolong Wang

Foundational to the Chinese language and culture, Chinese characters encompass extraordinarily extensive and ever-expanding categories, with the latest Chinese GB18030-2022 standard containing 87,887 categories. The accurate recognition of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Yuyi Zhang , Yongxin Shi , Peirong Zhang , Yixin Zhao , Zhenhua Yang , Lianwen Jin

Large language models typically represent Chinese characters as discrete index-based tokens, largely ignoring their visual form. For logographic scripts, visual structure carries semantic and phonetic information, which may aid prediction.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Shuyang Xiang , Hao Guan

The widespread use of charts and infographics as a means of data visualization in various domains has inspired recent research in automated chart understanding. However, information extraction from chart images is a complex multitasked…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Osama Mustafa , Muhammad Khizer Ali , Momina Moetesum , Imran Siddiqi

Recognizing and processing Classical Chinese (Han-Nom) texts play a vital role in digitizing Vietnamese historical documents and enabling cross-lingual semantic research. However, existing OCR systems struggle with degraded scans,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Minh Hoang Nguyen , Su Nguyen Thiet

Deciphering oracle bone scripts plays an important role in Chinese archaeology and philology. However, a significant challenge remains due to the scarcity of oracle character images. To overcome this issue, we propose Diff-Oracle, a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Jing Li , Qiu-Feng Wang , Siyuan Wang , Rui Zhang , Kaizhu Huang , Erik Cambria