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This paper uses Support Vector Machines (SVM) to fuse multiple classifiers for an offline signature system. From the signature images, global and local features are extracted and the signatures are verified with the help of Gaussian…

Computer Vision and Pattern Recognition · Computer Science 2010-02-04 Dakshina Ranjan Kisku , Phalguni Gupta , Jamuna Kanta Sing

In automatic signature verification, questioned specimens are usually compared with reference signatures. In writer-dependent schemes, a number of reference signatures are required to build up the individual signer model while a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Moises Diaz , Miguel A. Ferrer , Soodamani Ramalingam , Richard Guest

In this paper we present some experiments to automatically classify online handwritten text based on capital letters. Although handwritten text is not as discriminative as face or voice, we still found some chance for gender classification…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Marcos Faundez-Zanuy , Enric Sesa-Nogueras

With the deepening trend of paperless workflows, signatures as a means of identity authentication are gradually shifting from traditional ink-on-paper to electronic formats.Despite the availability of dynamic pressure-sensitive and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 RuiQiang Zhang , Zehua Ma , Guanjie Wang , Chang Liu , Hengyi Wang , Weiming Zhang

Automatic Offline Handwritten Signature Verification has been researched over the last few decades from several perspectives, using insights from graphology, computer vision, signal processing, among others. In spite of the advancements on…

Computer Vision and Pattern Recognition · Computer Science 2016-12-02 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

We consider the problem of detecting and locating modifications in signed data to ensure partial data integrity. We assume that the data is divided into $n$ blocks (not necessarily of the same size) and that a threshold $d$ is given for the…

Cryptography and Security · Computer Science 2022-08-03 Thaís Bardini Idalino , Lucia Moura , Ricardo Felipe Custódio , Daniel Panario

Digitized archives contain and preserve the knowledge of generations of scholars in millions of documents. The size of these archives calls for automatic analysis since a manual analysis by specialists is often too expensive. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 Christian Bartz , Hendrik Rätz , Christoph Meinel

In this paper we study the recognition of handwritten characters from data captured by a novel wearable electro-textile sensor panel. The data is collected sequentially, such that we record both the stroke order and the resulting bitmap. We…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Leevi Raivio , Han He , Johanna Virkki , Heikki Huttunen

Dynamic hand tracking and gesture recognition is a hard task since there are many joints on the fingers and each joint owns many degrees of freedom. Besides, object occlusion is also a thorny issue in finger tracking and posture…

Human-Computer Interaction · Computer Science 2018-09-18 Zhishuai Han , Xiaojuan Ban , Xiaokun Wang , Di wu

Visual localization is a useful alternative to standard localization techniques. It works by utilizing cameras. In a typical scenario, features are extracted from captured images and compared with geo-referenced databases. Location…

Computer Vision and Pattern Recognition · Computer Science 2020-06-28 Li Weng , Valerie Gouet-Brunet , Bahman Soheilian

The use of features extracted using a deep convolutional neural network (CNN) combined with a writer-dependent (WD) SVM classifier resulted in significant improvement in performance of handwritten signature verification (HSV) when compared…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Victor L. F. Souza , Adriano L. I. Oliveira , Robert Sabourin

Handwriting is a natural and versatile method for human-computer interaction, especially on small mobile devices such as smart phones. However, as handwriting varies significantly from person to person, it is difficult to design handwriting…

Human-Computer Interaction · Computer Science 2014-09-11 Sunsern Cheamanunkul , Yoav Freund

Online Signature Verification (OSV) is a widely used biometric attribute for user behavioral characteristic verification in digital forensics. In this manuscript, owing to large intra-individual variability, a novel method for OSV based on…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Chandra Sekhar , Prerana Mukherjee , D. S. Guru , Viswanath Pulabaigari

Handwritten text recognition has been widely studied in the last decades for its numerous applications. Nowadays, the state-of-the-art approach consists in a three-step process. The document is segmented into text lines, which are then…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Denis Coquenet

We address the problem of predicting similarity between a pair of handwritten document images written by different individuals. This has applications related to matching and mining in image collections containing handwritten content. A…

Computer Vision and Pattern Recognition · Computer Science 2016-05-20 Praveen Krishnan , C. V. Jawahar

High number of writers, small number of training samples per writer with high intra-class variability and heavily imbalanced class distributions are among the challenges and difficulties of the offline Handwritten Signature Verification…

Computer Vision and Pattern Recognition · Computer Science 2020-04-15 Victor L. F. Souza , Adriano L. I. Oliveira , Rafael M. O. Cruz , Robert Sabourin

This paper studies the problem of stance detection which aims to predict the perspective (or stance) of a given document with respect to a given claim. Stance detection is a major component of automated fact checking. As annotating stances…

Machine Learning · Computer Science 2019-02-08 Brian Xu , Mitra Mohtarami , James Glass

Signature verification has been one of the major researched areas in the field of computer vision. Many financial and legal organizations use signature verification as access control and authentication. Signature images are not rich in…

Computer Vision and Pattern Recognition · Computer Science 2021-08-05 Anamika Jain , Satish Kumar Singh , Krishna Pratap Singh

In a multilingual country like India where 12 different official scripts are in use, automatic identification of handwritten script facilitates many important applications such as automatic transcription of multilingual documents, searching…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Pawan Kumar Singh , Iman Chatterjee , Ram Sarkar , Mita Nasipuri

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