Character Recognition Systems

Character Recognition Systems
Author: Mohamed Cheriet
Publisher: John Wiley & Sons
Total Pages: 351
Release: 2007-11-27
Genre: Technology & Engineering
ISBN: 9780470176528

"Much of pattern recognition theory and practice, including methods such as Support Vector Machines, has emerged in an attempt to solve the character recognition problem. This book is written by very well-known academics who have worked in the field for many years and have made significant and lasting contributions. The book will no doubt be of value to students and practitioners." -Sargur N. Srihari, SUNY Distinguished Professor, Department of Computer Science and Engineering, and Director, Center of Excellence for Document Analysis and Recognition (CEDAR), University at Buffalo, The State University of New York "The disciplines of optical character recognition and document image analysis have a history of more than forty years. In the last decade, the importance and popularity of these areas have grown enormously. Surprisingly, however, the field is not well covered by any textbook. This book has been written by prominent leaders in the field. It includes all important topics in optical character recognition and document analysis, and is written in a very coherent and comprehensive style. This book satisfies an urgent need. It is a volume the community has been awaiting for a long time, and I can enthusiastically recommend it to everybody working in the area." -Horst Bunke, Professor, Institute of Computer Science and Applied Mathematics (IAM), University of Bern, Switzerland In Character Recognition Systems, the authors provide practitioners and students with the fundamental principles and state-of-the-art computational methods of reading printed texts and handwritten materials. The information presented is analogous to the stages of a computer recognition system, helping readers master the theory and latest methodologies used in character recognition in a meaningful way. This book covers: * Perspectives on the history, applications, and evolution of Optical Character Recognition (OCR) * The most widely used pre-processing techniques, as well as methods for extracting character contours and skeletons * Evaluating extracted features, both structural and statistical * Modern classification methods that are successful in character recognition, including statistical methods, Artificial Neural Networks (ANN), Support Vector Machines (SVM), structural methods, and multi-classifier methods * An overview of word and string recognition methods and techniques * Case studies that illustrate practical applications, with descriptions of the methods and theories behind the experimental results Each chapter contains major steps and tricks to handle the tasks described at-hand. Researchers and graduate students in computer science and engineering will find this book useful for designing a concrete system in OCR technology, while practitioners will rely on it as a valuable resource for the latest advances and modern technologies that aren't covered elsewhere in a single book.

Optical Character Recognition Systems for Different Languages with Soft Computing

Optical Character Recognition Systems for Different Languages with Soft Computing
Author: Arindam Chaudhuri
Publisher: Springer
Total Pages: 260
Release: 2016-12-23
Genre: Technology & Engineering
ISBN: 3319502522

The book offers a comprehensive survey of soft-computing models for optical character recognition systems. The various techniques, including fuzzy and rough sets, artificial neural networks and genetic algorithms, are tested using real texts written in different languages, such as English, French, German, Latin, Hindi and Gujrati, which have been extracted by publicly available datasets. The simulation studies, which are reported in details here, show that soft-computing based modeling of OCR systems performs consistently better than traditional models. Mainly intended as state-of-the-art survey for postgraduates and researchers in pattern recognition, optical character recognition and soft computing, this book will be useful for professionals in computer vision and image processing alike, dealing with different issues related to optical character recognition.

Optical Character Recognition

Optical Character Recognition
Author: Stephen V. Rice
Publisher: Springer Science & Business Media
Total Pages: 198
Release: 2012-12-06
Genre: Computers
ISBN: 1461550211

Optical character recognition (OCR) is the most prominent and successful example of pattern recognition to date. There are thousands of research papers and dozens of OCR products. Optical Character Rcognition: An Illustrated Guide to the Frontier offers a perspective on the performance of current OCR systems by illustrating and explaining actual OCR errors. The pictures and analysis provide insight into the strengths and weaknesses of current OCR systems, and a road map to future progress. Optical Character Recognition: An Illustrated Guide to the Frontier will pique the interest of users and developers of OCR products and desktop scanners, as well as teachers and students of pattern recognition, artificial intelligence, and information retrieval. The first chapter compares the character recognition abilities of humans and computers. The next four chapters present 280 illustrated examples of recognition errors, in a taxonomy consisting of Imaging Defects, Similar Symbols, Punctuation, and Typography. These examples were drawn from large-scale tests conducted by the authors. The final chapter discusses possible approaches for improving the accuracy of today's systems, and is followed by an annotated bibliography. Optical Character Recognition: An Illustrated Guide to the Frontier is suitable as a secondary text for a graduate level course on pattern recognition, artificial intelligence, and information retrieval, and as a reference for researchers and practitioners in industry.

Handbook Of Character Recognition And Document Image Analysis

Handbook Of Character Recognition And Document Image Analysis
Author: Horst Bunke
Publisher: World Scientific
Total Pages: 851
Release: 1997-05-02
Genre: Computers
ISBN: 9814500380

Optical character recognition and document image analysis have become very important areas with a fast growing number of researchers in the field. This comprehensive handbook with contributions by eminent experts, presents both the theoretical and practical aspects at an introductory level wherever possible.

Research Anthology on Physical and Intellectual Disabilities in an Inclusive Society

Research Anthology on Physical and Intellectual Disabilities in an Inclusive Society
Author: Management Association, Information Resources
Publisher: IGI Global
Total Pages: 1985
Release: 2021-08-27
Genre: Social Science
ISBN: 1668435438

Discussions surrounding inclusivity have grown exponentially in recent years. In today’s world where diversity, equity, and inclusion are the hot topics in all aspects of society, it is more important than ever to define what it means to be an inclusive society, as well as challenges and potential growth. Those with physical and intellectual disabilities, including vision and hearing impairment, Down syndrome, locomotor disability, and more continue to face challenges of accessibility in their daily lives, especially when facing an increasingly digitalized society. It is crucial that research is brought up to date on the latest assistive technologies, educational practices, work assistance, and online support that can be provided to those classified with a disability. The Research Anthology on Physical and Intellectual Disabilities in an Inclusive Society provides a comprehensive guide of a range of topics relating to myriad aspects, difficulties, and opportunities of becoming a more inclusive society toward those with physical or intellectual disabilities. Covering everything from disabilities in education, sports, marriages, and more, it is essential for psychologists, psychiatrists, pediatricians, psychiatric nurses, clinicians, special education teachers, social workers, hospital administrators, mental health specialists, managers, academicians, rehabilitation centers, researchers, and students who wish to learn more about what it means to be an inclusive society and best practices in order to get there.

Knowledge-Based Intelligent Techniques in Character Recognition

Knowledge-Based Intelligent Techniques in Character Recognition
Author: Lakhmi C. Jain
Publisher: CRC Press
Total Pages: 316
Release: 2020-12-18
Genre: Computers
ISBN: 1000151875

Knowledge-Based Intelligent Techniques in Character Recognition presents research results on intelligent character recognition techniques, reflecting the tremendous worldwide interest in the applications of knowledge-based techniques in this challenging field. This resource will interest anyone involved in computer science, computer engineering, applied mathematics, or related fields. It will also be of use to researchers, application engineers and students who wish to develop successful character recognition systems such as those used in reading addresses in a postal routing system or processing bank checks. Features

Document Analysis Systems II

Document Analysis Systems II
Author: Jonathan J. Hull
Publisher: World Scientific
Total Pages: 542
Release: 1998
Genre: Computers
ISBN: 9789810231033

This book provides an overview of the state of the art in research and development of systems for document image analysis. Topics covered include a variety of systems and architectures for processing document images as well as methods for converting those images into formats that can be manipulated by a computer. The chapters are written by recognized experts in the field and describe Systems and Architectures, Recognition Techniques, Graphics Analysis, Document Image Retrieval, and World Wide Web Applications.

Optical Character Recognition

Optical Character Recognition
Author: Shunji Mori
Publisher: Wiley-Interscience
Total Pages: 0
Release: 1999-04-13
Genre: Technology & Engineering
ISBN: 9780471308195

As optical character recognition (OCR) begins to find applicationsranging from store checkout scanners to money-changing machines andpostal system automation, it has become one of the most dynamicareas in information science today. Yet few volumes explore thisdata-oriented process without relying heavily on mathematicalbackground reading. Now, Shunji Mori, Hirobumi Nishida, and Hiromitsu Yamada, among thefield's most respected researchers since its inception, presentthis self-contained, clearly written guidebook to OCR--the firstcomprehensive treatment of the preprocessing, feature-extraction,and systematic description-matching stages of the OCR process.Including a wealth of original research material available here forthe first time, this book is both an ideal professional referencesource and an excellent entry point for course work in thesubject. Key features of Optical Character Recognition: * Theoretical framework based on functional analysis--notpreviously available in a detailed, English-language version * Extensive explanation of preprocessing theory, including blurringand sampling, normalization, thinning, and binary and gray-scalemorphology * Intensive section on feature extraction, exploring linearmethods, structure analysis, and algebraic description * Original work on systematic shape description as a prerequisiteto matching * Original material on elastic matching, including imagerecognition of characters and objects * Requires only the standard undergraduate requisites of algebra,linear algebra, and advanced calculus

A Large Vocabulary Online Handwriting Recognition System for Turkish

A Large Vocabulary Online Handwriting Recognition System for Turkish
Author: Esma Fatıma Bilgin Taşdemir
Publisher: Cinius Yayınları
Total Pages: 87
Release: 2021-12-01
Genre: Fiction
ISBN: 6258041760

Handwriting recognition in general and online handwriting recognition in particular has been an active research area for several decades. Most of the research have been focused on English and recently on other scripts like Arabic and Chinese. There is a lack of research on recognition in Turkish text and this work primarily fills that gap with a state-of-the-art recognizer for the first time. It contains design and implementation details of a complete recognition system for recognition of Turkish isolated words. It considers the recognition of unconstrained handwriting with a limited vocabulary size first and then evolves to a large vocabulary system. Turkish script has many similarities with other Latin scripts, like English, which makes it possible to adapt strategies that work for them. However, there are some other issues which are particular to Turkish that should be taken into consideration separately. Two of the challenging issues in recognition of Turkish text are determined as delayed strokes and high Out-of-Vocabulary (OOV). This work examines these problems and alternative solutions at depth and proposes suitable solutions for Turkish script particularly.