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Recurrent Neural Networks (RNN) have recently achieved the best performance in off-line Handwriting Text Recognition. At the same time, learning RNN by gradient descent leads to slow convergence, and training times are particularly long…

Machine Learning · Computer Science 2013-12-09 Jérôme Louradour , Christopher Kermorvant

The state-of-the-art object detection and image classification methods can perform impressively on more than 9k and 10k classes, respectively. In contrast, the number of classes in semantic segmentation datasets is relatively limited. This…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Shipra Jain , Danda Paudel Pani , Martin Danelljan , Luc Van Gool

Unconstrained handwriting recognition is an essential task in document analysis. It is usually carried out in two steps. First, the document is segmented into text lines. Second, an Optical Character Recognition model is applied on these…

Computer Vision and Pattern Recognition · Computer Science 2021-09-13 Denis Coquenet , Clément Chatelain , Thierry Paquet

In recent years, deep learning techniques have been used to develop sign language recognition systems, potentially serving as a communication tool for millions of hearing-impaired individuals worldwide. However, there are inherent…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Alvaro Leandro Cavalcante Carneiro , Denis Henrique Pinheiro Salvadeo , Lucas de Brito Silva

Semantic segmentation is fundamental to vision systems requiring pixel-level scene understanding, yet deploying it on resource-constrained devices demands efficient architectures. Although existing methods achieve real-time inference…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Shi-Chen Zhang , Yunheng Li , Yu-Huan Wu , Qibin Hou , Ming-Ming Cheng

We present a new handwritten text segmentation method by training a convolutional neural network (CNN) in an end-to-end manner. Many conventional methods addressed this problem by extracting connected components and then classifying them.…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Junho Jo , Hyung Il Koo , Jae Woong Soh , Nam Ik Cho

Handwritten document-image binarization is a semantic segmentation process to differentiate ink pixels from background pixels. It is one of the essential steps towards character recognition, writer identification, and script-style evolution…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Maruf A. Dhali , Jan Willem de Wit , Lambert Schomaker

We propose a novel method that uses convolutional neural networks (CNNs) for feature extraction. Not just limited to conventional spatial domain representation, we use multilevel 2D discrete Haar wavelet transform, where image…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Soumya Ukil , Swarnendu Ghosh , Sk Md Obaidullah , K. C. Santosh , Kaushik Roy , Nibaran Das

Three-dimensional (3D) object recognition technology is being used as a core technology in advanced technologies such as autonomous driving of automobiles. There are two sets of approaches for 3D object recognition: (i) hand-crafted…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Junhyung Jo , Hamidreza Kasaei

Fruit recognition using Deep Convolutional Neural Network (CNN) is one of the most promising applications in computer vision. In recent times, deep learning based classifications are making it possible to recognize fruits from images.…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Shadman Sakib , Zahidun Ashrafi , Md. Abu Bakr Siddique

Recognizing handwritten digits is a challenging task primarily due to the diversity of writing styles and the presence of noisy images. The widely used MNIST dataset, which is commonly employed as a benchmark for this task, includes…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Amarnath R , Vinay Kumar

The goal of salient region detection is to identify the regions of an image that attract the most attention. Many methods have achieved state-of-the-art performance levels on this task. Recently, salient instance segmentation has become an…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Jialun Pei , He Tang , Chao Liu , Chuanbo Chen

In this paper, we propose a novel stroke constrained attention network (SCAN) which treats stroke as the basic unit for encoder-decoder based online handwritten mathematical expression recognition (HMER). Unlike previous methods which use…

Computer Vision and Pattern Recognition · Computer Science 2020-02-21 Jiaming Wang , Jun Du , Jianshu Zhang

Analysis and manipulation of trained neural networks is a challenging and important problem. We propose a symbolic representation for piecewise-linear neural networks and discuss its efficient computation. With this representation, one can…

Machine Learning · Computer Science 2019-08-21 Matthew Sotoudeh , Aditya V. Thakur

Deep learning has rapidly become a widespread tool in both scientific and commercial endeavors. Milestones of deep learning exceeding human performance have been achieved for a growing number of tasks over the past several years, across…

Handwritten Mathematical Expression Recognition is foundational for educational technologies, enabling applications like digital note-taking and automated grading. While modern encoder-decoder architectures with large language models excel…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Jakob Seitz , Tobias Lengfeld , Radu Timofte

Offline Handwritten Mathematical Expression Recognition (HMER) is a major area in the field of mathematical expression recognition. Offline HMER is often viewed as a much harder problem as compared to online HMER due to a lack of temporal…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Ujjwal Thakur , Anuj Sharma

Optical machine learning offers advantages in terms of power efficiency, scalability and computation speed. Recently, an optical machine learning method based on Diffractive Deep Neural Networks (D2NNs) has been introduced to execute a…

Neural and Evolutionary Computing · Computer Science 2019-06-11 Deniz Mengu , Yi Luo , Yair Rivenson , Aydogan Ozcan

In this paper, we propose a novel model, named Stroke Sequence-dependent Deep Convolutional Neural Network (SSDCNN), using the stroke sequence information and eight-directional features for Online Handwritten Chinese Character Recognition…

Computer Vision and Pattern Recognition · Computer Science 2016-10-14 Baotian Hu , Xin Liu , Xiangping Wu , Qingcai Chen

Just like its great success in solving many computer vision problems, the convolutional neural networks (CNN) provided new end-to-end approach to handwritten Chinese character recognition (HCCR) with very promising results in recent years.…

Computer Vision and Pattern Recognition · Computer Science 2015-05-20 Zhuoyao Zhong , Lianwen Jin , Zecheng Xie