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Writer identification due to its widespread application in various fields has gained popularity over the years. In scenarios where optimum handwriting samples are available, whether they be in the form of a single line, a sentence, or an…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Vineet Kumar , Suresh Sundaram

Stroke extraction of Chinese characters plays an important role in the field of character recognition and generation. The most existing character stroke extraction methods focus on image morphological features. These methods usually lead to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Meng Li , Yahan Yu , Yi Yang , Guanghao Ren , Jian Wang

The advent of recurrent neural networks for handwriting recognition marked an important milestone reaching impressive recognition accuracies despite the great variability that we observe across different writing styles. Sequential…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Lei Kang , Pau Riba , Marçal Rusiñol , Alicia Fornés , Mauricio Villegas

Convolutional neural networks (CNNs) achieved the state-of-the-art performance in medical image segmentation due to their ability to extract highly complex feature representations. However, it is argued in recent studies that traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Zhendi Gong , Andrew P. French , Guoping Qiu , Xin Chen

Utilizing transformer architectures for semantic segmentation of high-resolution images is hindered by the attention's quadratic computational complexity in the number of tokens. A solution to this challenge involves decreasing the number…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Daniel Kienzle , Marco Kantonis , Robin Schön , Rainer Lienhart

Semantic segmentation based on sparse annotation has advanced in recent years. It labels only part of each object in the image, leaving the remainder unlabeled. Most of the existing approaches are time-consuming and often necessitate a…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Hui Su , Yue Ye , Wei Hua , Lechao Cheng , Mingli Song

The Transformer has quickly become the dominant architecture for various pattern recognition tasks due to its capacity for long-range representation. However, transformers are data-hungry models and need large datasets for training. In…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Marwa Dhiaf , Ahmed Cheikh Rouhou , Yousri Kessentini , Sinda Ben Salem

One of the most arduous and captivating domains under image processing is handwritten character recognition. In this paper we have proposed a feature extraction technique which is a combination of unique features of geometric, zone-based…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Sai Abhishikth Ayyadevara , P N V Sai Ram Teja , Bharath K P , Rajesh Kumar M

While analyzing scanned documents, handwritten text can overlap with printed text. This overlap causes difficulties during the optical character recognition (OCR) and digitization process of documents, and subsequently, hurts downstream NLP…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Sina Gholamian , Ali Vahdat

Sketchformer is a novel transformer-based representation for encoding free-hand sketches input in a vector form, i.e. as a sequence of strokes. Sketchformer effectively addresses multiple tasks: sketch classification, sketch based image…

Computer Vision and Pattern Recognition · Computer Science 2020-02-25 Leo Sampaio Ferraz Ribeiro , Tu Bui , John Collomosse , Moacir Ponti

Convolutional neural networks(CNNs) has become one of the primary algorithms for various computer vision tasks. Handwritten character recognition is a typical example of such task that has also attracted attention. CNN architectures such as…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Bodhisatwa Mandal , Suvam Dubey , Swarnendu Ghosh , Ritesh Sarkhel , Nibaran Das

Segmentation of handwritten document images into text lines and words is one of the most significant and challenging tasks in the development of a complete Optical Character Recognition (OCR) system. This paper addresses the automatic…

Computer Vision and Pattern Recognition · Computer Science 2020-09-18 Pawan Kumar Singh , Shubham Sinha , Sagnik Pal Chowdhury , Ram Sarkar , Mita Nasipuri

Large Language Models (LLMs) have demonstrated strong generalization capabilities across a wide range of natural language processing (NLP) tasks. However, they exhibit notable weaknesses in character-level string manipulation, struggling…

Computation and Language · Computer Science 2025-03-28 Zhen Xiong , Yujun Cai , Bryan Hooi , Nanyun Peng , Zhecheng Li , Yiwei Wang

We present a generative document-specific approach to character analysis and recognition in text lines. Our main idea is to build on unsupervised multi-object segmentation methods and in particular those that reconstruct images based on a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Ioannis Siglidis , Nicolas Gonthier , Julien Gaubil , Tom Monnier , Mathieu Aubry

Translating characters instead of words or word-fragments has the potential to simplify the processing pipeline for neural machine translation (NMT), and improve results by eliminating hyper-parameters and manual feature engineering.…

Computation and Language · Computer Science 2018-08-30 Colin Cherry , George Foster , Ankur Bapna , Orhan Firat , Wolfgang Macherey

This work proposes an attention-based sequence-to-sequence model for handwritten word recognition and explores transfer learning for data-efficient training of HTR systems. To overcome training data scarcity, this work leverages models…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Dmitrijs Kass , Ekta Vats

Character segmentation has long been one of the most critical areas of optical character recognition process. Through this operation, an image of a sequence of characters, which may be connected in some cases, is decomposed into sub-images…

Computer Vision and Pattern Recognition · Computer Science 2012-02-15 Subhadip Basu , Chitrita Chaudhuri , Mahantapas Kundu , Mita Nasipuri , Dipak K. Basu

Precise character segmentation is the only solution towards higher Optical Character Recognition (OCR) accuracy. In cursive script, overlapped characters are serious issue in the process of character segmentations as characters are deprived…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Amjad Rehman

A set of features independent of character stroke direction and order variations is proposed for online handwritten character recognition. A method is developed that maps features like co-ordinates of points, orientations of strokes at…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Anand Sharma , A. G. Ramakrishnan

Scene text segmentation aims at cropping texts from scene images, which is usually used to help generative models edit or remove texts. The existing text segmentation methods tend to involve various text-related supervisions for better…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Haiyang Yu , Teng Fu , Bin Li , Xiangyang Xue