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Supervised learning demands large amounts of precisely annotated data to achieve promising results. Such data curation is labor-intensive and imposes significant overhead regarding time and costs. Self-supervised learning (SSL) partially…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Thangarajah Akilan , Nusrat Jahan , Wandong Zhang

The problem of converting images of text into plain text is a widely researched topic in both academia and industry. Arabic handwritten Text Recognation (AHTR) poses additional challenges due to diverse handwriting styles and limited…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Alhossien Waly , Bassant Tarek , Ali Feteha , Rewan Yehia , Gasser Amr , Ahmed Fares

Substantial amounts of work are required to clean large collections of digitized books for NLP analysis, both because of the presence of errors in the scanned text and the presence of duplicate volumes in the corpora. In this paper, we…

Computation and Language · Computer Science 2021-10-25 Allen Kim , Charuta Pethe , Naoya Inoue , Steve Skiena

Multi-human parsing is the task of segmenting human body parts while associating each part to the person it belongs to, combining instance-level and part-level information for fine-grained human understanding. In this work, we demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2025-09-15 Laura Bragagnolo , Matteo Terreran , Leonardo Barcellona , Stefano Ghidoni

We present a novel deep neural model for text detection in document images. For robust text detection in noisy scanned documents, the advantages of multi-task learning are adopted by adding an auxiliary task of text enhancement. Namely, our…

Computer Vision and Pattern Recognition · Computer Science 2021-06-11 Eun-Soo Jung , HyeongGwan Son , Kyusam Oh , Yongkeun Yun , Soonhwan Kwon , Min Soo Kim

Offline Handwritten Signature verification presents a challenging Pattern Recognition problem, where only knowledge of the positive class is available for training. While classifiers have access to a few genuine signatures for training,…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Digitization of newspapers is of interest for many reasons including preservation of history, accessibility and search ability, etc. While digitization of documents such as scientific articles and magazines is prevalent in literature, one…

Computer Vision and Pattern Recognition · Computer Science 2022-02-04 Wenzhen Zhu , Negin Sokhandan , Guang Yang , Sujitha Martin , Suchitra Sathyanarayana

Text extraction is an important problem in image processing with applications from optical character recognition to autonomous driving. Most of the traditional text segmentation algorithms consider separating text from a simple background…

Computer Vision and Pattern Recognition · Computer Science 2017-07-12 Shervin Minaee , Yao Wang

Document parsing from scanned images into structured formats remains a significant challenge due to its complexly intertwined elements such as text paragraphs, figures, formulas, and tables. Existing supervised fine-tuning methods often…

Computation and Language · Computer Science 2025-10-21 Baode Wang , Biao Wu , Weizhen Li , Meng Fang , Zuming Huang , Jun Huang , Haozhe Wang , Yanjie Liang , Ling Chen , Wei Chu , Yuan Qi

Online and offline handwritten Chinese text recognition (HTCR) has been studied for decades. Early methods adopted oversegmentation-based strategies but suffered from low speed, insufficient accuracy, and high cost of character segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Dezhi Peng , Lianwen Jin , Weihong Ma , Canyu Xie , Hesuo Zhang , Shenggao Zhu , Jing Li

Humans are able to recognize structured relations in observation, allowing us to decompose complex scenes into simpler parts and abstract the visual world in multiple levels. However, such hierarchical reasoning ability of human perception…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Liulei Li , Tianfei Zhou , Wenguan Wang , Jianwu Li , Yi Yang

Automated blood vessel segmentation is vital for biomedical imaging, as vessel changes indicate many pathologies. Still, precise segmentation is difficult due to the complexity of vascular structures, anatomical variations across patients,…

One important and particularly challenging step in the optical character recognition (OCR) of historical documents with complex layouts, such as newspapers, is the separation of text from non-text content (e.g. page borders or…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Bernhard Liebl , Manuel Burghardt

In medicine, visualizing chromosomes is important for medical diagnostics, drug development, and biomedical research. Unfortunately, chromosomes often overlap and it is necessary to identify and distinguish between the overlapping…

Computer Vision and Pattern Recognition · Computer Science 2017-12-21 R. Lily Hu , Jeremy Karnowski , Ross Fadely , Jean-Patrick Pommier

This paper is a presentation of a new method for denoising images using Haralick features and further segmenting the characters using artificial neural networks. The image is divided into kernels, each of which is converted to a GLCM (Gray…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 P Preethi , Hrishikesh Viswanath

The segmentation-free research efforts for addressing handwritten text recognition can be divided into three categories: connectionist temporal classification (CTC), hidden Markov model and encoder-decoder methods. In this paper, inspired…

Artificial Intelligence · Computer Science 2025-08-05 Zi-Rui Wang

The forensic attribution of the handwriting in a digitized document to multiple scribes is a challenging problem of high dimensionality. Unique handwriting styles may be dissimilar in a blend of several factors including character size,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Sriparna Majumdar , Aaron Brick

This paper describes an approach for offline recognition of handwritten mathematical symbols. The process of symbol recognition in this paper includes symbol segmentation and accurate classification for over 300 classes. Many…

Computer Vision and Pattern Recognition · Computer Science 2019-10-17 Azadeh Nazemi , Niloofar Tavakolian , Donal Fitzpatrick , Chandrik a Fernando , Ching Y. Suen

One of the principal tasks of machine learning with major applications is text classification. This paper focuses on the legal domain and, in particular, on the classification of lengthy legal documents. The main challenge that this study…

Computation and Language · Computer Science 2019-12-17 Lulu Wan , George Papageorgiou , Michael Seddon , Mirko Bernardoni

As of recent generative adversarial networks have allowed for big leaps in the realism of generated images in diverse domains, not the least of which being handwritten text generation. The generation of realistic-looking hand-written text…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Alexander Mattick , Martin Mayr , Mathias Seuret , Andreas Maier , Vincent Christlein