IEE Third European Workshop on Handwriting Analysis and Recognition

14-15 July 1998

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  • IEE Third European Workshop on Handwriting Analysis and Recognition (Ref. No.1198/440)

    Publication Year: 1998
    IEEE is not the copyright holder of this material | PDF file iconPDF (106 KB)
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  • An overview of pen computing: four perspectives

    Publication Year: 1998
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (66 KB)

    Summary form only given. The difficulties of handwriting recognition are explored. The requirements are a fundamental insight into the handwriting production process, domain knowledge on the nature of script pattern geometry, and powerful algorithms which display both noise tolerance and the ability to integrate multilevel information sources. The article discusses pen-computing hardware, software... View full abstract»

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  • Analysing visuo-spatial neglect through figure-copying tasks

    Publication Year: 1998, Page(s):2/1 - 2/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (301 KB)

    This paper describes the automatic analysis and diagnostic interpretation of hand-drawn geometric shapes implemented as part of a computer-based test battery for the assessment of visuo-spatial neglect in stroke patients. Visuo-spatial neglect is the inability of a brain damaged patient to react to visual stimuli on the opposite side to the lesion. The symptoms of neglect are not 'all-or-nothing' ... View full abstract»

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  • Fusion of correlated decisions for writer identification

    Publication Year: 1998, Page(s):3/1 - 3/7
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (458 KB)

    Writer identification is carried out using the words of a short sentence. Each word is processed separately and used to decide about the presence of the specific writer. A likelihood ratio decision rule is employed for the word level decision. The individual decisions obtained from the words of the sentence are fused to improve the identification performance. The Bahadur-Lazarsfeld expansion is em... View full abstract»

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  • Writer identification based on handwriting

    Publication Year: 1998, Page(s):4/1 - 4/6
    Cited by:  Papers (2)  |  Patents (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (515 KB)

    This paper describes a text-independent writer identification method. The difficulties with writer identification are discussed. These include the sensitivity of the identification algorithm to variations in the size of the training samples, in the words, line and character spacing, point sizes, and scanner resolutions. The work described demonstrates that texture analysis is a useful tool for wri... View full abstract»

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  • Optimisation issues in dynamic and static signature verification

    Publication Year: 1998, Page(s):5/1 - 5/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (453 KB)

    This paper is concerned with the development of methods to maximise the performance of systems through the optimisation of their component parts, with the aim of moving the technology of signature verification forward towards a practical and realistic implementation. Also, a number of aspects of design concerning the representation of information in the context of assessing the quality of the data... View full abstract»

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  • Off-line and online handwriting recognition-common approach

    Publication Year: 1998, Page(s):6/1 - 6/2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (144 KB)

    Handwritten characters are treated not only as image patterns but also as movement patterns. A set of 8 trajectories is defined. They are arranged such that any one that is written is correct or is probably a mistake for its next neighbour. The interpretation of written characters as trajectories is useful in noise elimination. For online writing, a nonlocal interpretation of elements of the traje... View full abstract»

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  • Towards a theoretical framework for multi-layer decision fusion

    Publication Year: 1998, Page(s):7/1 - 7/7
    Cited by:  Papers (2)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (409 KB)

    A generic framework is proposed in modelling multilayer decision fusion. The model is completely generalised and can approximate any multilayer decision combination configuration. A case study in machine-printed numeral recognition is presented to demonstrate how any type of multilayer configuration can be modelled and analysed within this framework. View full abstract»

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  • A framework for using multiple classifiers in a multiple-agent architecture

    Publication Year: 1998, Page(s):8/1 - 8/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (354 KB)

    This paper describes a new framework using intelligent agents for pattern recognition. A justification for using alternatives to current classifier systems is gives. The use of the framework, called IART, is tested on a digit recognition system. View full abstract»

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  • Extracting features from fuzzy cognitive parameter spaces

    Publication Year: 1998, Page(s):9/1 - 9/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (350 KB)

    Underlying our proposed model is the perspective of handwriting recognition as a simple visual task involving the recognition of a finite set of simple, monochrome, stationary, 2D objects. We address the arbitrary nature of feature selection by adopting the rationale that the features chosen must each be cognitively plausible. This excludes many features commonly used in character recognition. The... View full abstract»

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  • Matching structural descriptions of handwritten characters using heuristic graph search

    Publication Year: 1998, Page(s):10/1 - 10/4
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (359 KB)

    Structural representations are widely used in object recognition. They model the parts that form an object and the relationships between those parts. We discuss techniques for deriving and comparing structural representations of handwritten characters. Character recognition can be modeled as two main tasks; to derive an abstract description of a character from the raw data describing the writing p... View full abstract»

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  • A method for connected hand-printed numeral recognition using hidden Markov models

    Publication Year: 1998, Page(s):11/1 - 11/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (582 KB)

    A method for the recognition of hand-printed numerals using hidden Markov models is described. The method involves the representation of 2D images of a character with two 1D models, one for the pixel columns of the image and the other for the rows. Various normalisations are applied to both the training and test data to reduce variations between characters within a class, resulting in a correspond... View full abstract»

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  • Intersection based character classifier

    Publication Year: 1998, Page(s):12/1 - 12/3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (158 KB)

    The classifier is intended to recognize simple black-and-white characters that may have breaks. We assume that there are not many breaks in the picture trajectory and each line intersects the trajectory in few points. The latter condition is true for such character classes as digits and small Latin letters. We also assume that the input image is inscribed in the unit square without distorting orig... View full abstract»

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  • Towards collaborative agents for automatic online handwriting recognition

    Publication Year: 1998, Page(s):13/1 - 13/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (488 KB)

    A important problem in many areas of complex information processing is to integrate heterogeneous information from different sources. For handwriting recognition we accomplished such an integration through an agent architecture of three cooperating agents. One agent represents the bottom-up knowledge as generated by a shape-based classifier of unistrokes. The second agent contains top-down (syntac... View full abstract»

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  • State of the art in off-line handwriting applications

    Publication Year: 1998, Page(s):14/1 - 14/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (480 KB)

    When focusing on off-line handwriting, two styles have to be distinguished: isolated hand-printed characters and cursive script. This paper briefly describes applications handwriting involved in focusing on requirements, main characteristics and essential problems. After discussing the processing steps, the paper concludes by summarizing the essential open problems to be solved for significantly i... View full abstract»

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  • Spatially aware rapid retrieval system (SPARRS)

    Publication Year: 1998, Page(s):15/1 - 15/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (522 KB)

    This paper describes an extended version of the syntactic neural network (SNN) rapid retrieval system - a system for the efficient application of dictionary type knowledge in pattern recognition systems. The original system, previously developed by the author (1995, 1996), has proven to be an excellent method of applying contextual knowledge to provide an optimal interpretation of the uncertain ou... View full abstract»

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  • A step towards the use of writer's properties for text recognition

    Publication Year: 1998, Page(s):16/1 - 16/6
    Cited by:  Patents (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (436 KB)

    The reading activity, which is considered as an information processing system, involves the integration of different processes, knowledge, and modalities in order to transform a graphical representation into a symbolic representation. McClelland and Rumelhart (1981) have introduced the concept of interactivity in their human reading model, called the interactive activation model. In this model, th... View full abstract»

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  • HUE: a handwriting understanding environment for document analysis and processing

    Publication Year: 1998, Page(s):17/1 - 17/7
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (657 KB)

    The image understanding environments do not fully address the needs of researchers working in the areas of document and handwriting analysis and understanding. Deficiencies of these environments include: platform dependence; limitations in the way in which users can interact with or extend the environment; and lack of support for accessing evaluation databases. The handwriting understanding enviro... View full abstract»

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  • Reading Auntie Pauline's Christmas letter [character recognition]

    Publication Year: 1998, Page(s):18/1 - 18/7
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (528 KB)

    The author has developed software in the past that segments hand-printed characters using simple heuristics, normalises them, extracts features and recognises them using a quadratic discriminant function. He concluded that correct segmentation was the area that needed major research effort. If this could be done correctly then the recognition results would be reasonably impressive using existing s... View full abstract»

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  • Model selection in online handwriting

    Publication Year: 1998, Page(s):19/1 - 19/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (368 KB)

    The description of digitized curves has two objectives: to decrease the mass of data and to allow processes of higher level recognition. The objective of this paper is to propose a technique of parameter estimation with the help of an extended Kalman filter. This method is available to all type of conics, circles or straight lines, that allows a more accurate fitting of curves with less parameters... View full abstract»

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  • Fractal analysis of a handwritten line by profile approximation

    Publication Year: 1998, Page(s):20/1 - 20/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (408 KB)

    Nowadays each scanner is working together with an OCR software; it has been observed that in nearly all the recognition methods, a analysis of the writing is only very superficially performed. The goal of our study is to discover new parameters that would enable improvement of the recognition step by use of a pre-clustering of the writings according to the writing style. In this study, it has been... View full abstract»

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  • Estimating word length for efficient text analysis

    Publication Year: 1998, Page(s):21/1 - 21/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (377 KB)

    Although the problem of recognising machine printed words has been largely solved, no ideal solution has been found for the problem of handwritten word recognition, and especially cursive handwritten word recognition. This paper describes a simple technique for estimating word length in unconstrained text which offers fast implementation without a high memory and computational overhead. Such a tec... View full abstract»

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  • An online handwritten character recognition system dedicated to blind people

    Publication Year: 1998, Page(s):22/1 - 22/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (353 KB)

    By using a speech synthesizer, a complete dedicated personal digital assistant system can be developed for blind people. This approach is only valid for late blind people who have learned to write. However, the writing quality of blind people is very poor, mainly due to the lack of visual feedback from what they actually draw. This paper presents an adaptive pre-processing method to restore the gl... View full abstract»

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  • Document and handwriting analysis for archive index card conversion

    Publication Year: 1998, Page(s):23/1 - 23/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (354 KB)

    Museums and libraries have an urgent need to find ways of computerising archive card indexes to support computational analysis and automated database interrogation of their curatorial records. Existing commercial OCR software and document analysis packages are totally inadequate for handling the diverse heterogeneous formats of typescript, hand-print and handwriting encountered in archive indexes.... View full abstract»

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  • A new A2iA bankcheck recognition system

    Publication Year: 1998, Page(s):24/1 - 24/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (385 KB)

    We (1996) have presented the INTERCHEQUE recognition system for automatic reading of French bank checks. The key feature of the system is the ability to process both handwritten and printed checks and recognize both courtesy and legal amounts written in French. A new A2iA recognition chain, is designed to process US bank checks written in English. It is able to recognize both courtesy and legal am... View full abstract»

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