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Proceedings of 3rd International Conference on Document Analysis and Recognition

14-16 Aug. 1995

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Displaying Results 1 - 25 of 152
  • Author index

    Publication Year: 1995, Page(s):A1 - A7
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    Freely Available from IEEE
  • A system for recognizing numeric strings from topographical maps

    Publication Year: 1995, Page(s):940 - 943 vol.2
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The paper proposes a system for recognizing numeric strings from topographical maps, which is composed of an automatic recognition stage and an interactive recognition stage. In this method, uncertain numeric strings extracted through the automatic recognition stage based on topographical map features only are confirmed and corrected by the interactive recognition stage. Therefore one can obtain h... View full abstract»

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  • Extraction of slant character candidates from maps using circular templates

    Publication Year: 1995, Page(s):936 - 939 vol.2
    Cited by:  Papers (1)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The paper proposes a method for extracting slant characters from complicated background figures efficiently and rapidly. In this method, slant character candidates are extracted using the black pixel density features, that is, matching rate of two different sized circular templates, which are inscribing and circumscribing a target character, with an original image. In order to estimate performance... View full abstract»

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  • The field transform and its application to personal handwritten Chinese character recognition

    Publication Year: 1995, Page(s):689 - 692 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    There is a special induction field in the figures of characters which is a physiological and psychological phenomenon and is highly related to human character recognition. In this paper, a formal definition of the field transform is introduced, in which the field of a character image is simulated by a 2-dimensional scalar field which is caused by all the stroke points in the character image. If ca... View full abstract»

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  • Cooperation of multi-layer perceptrons for the estimation of skew angle in text document images

    Publication Year: 1995, Page(s):1141 - 1144 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Estimating the skew angle in text document images can be a crucial problem in optical character recognition. Based on a new sensor array processing technique, an original solution to skew angle estimation (SAE) is proposed. Thanks to the reformulation of the SAE problem in the framework of angle of arrival theory, a fast and accurate method is presented that is based on the cooperation of two neur... View full abstract»

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  • Evaluation of an interactive tool for handwritten form description

    Publication Year: 1995, Page(s):1185 - 1188 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    A highly time-consuming activity in many areas of commerce and business is the manual entry into computer of data handwritten on forms. All forms in widespread use contain discrete fields where specific information can be entered. Automatic recognition of these forms could be achieved using existing state-of-the-art OCR algorithms for numerals, alphabetic characters, cursive words, signatures and ... View full abstract»

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  • Recursive morphological sieve method for searching pictorial point symbols on maps

    Publication Year: 1995, Page(s):931 - 935 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Point symbols on a map represent interesting and significant positional data, such as airports, ski areas and natural parks. Identification of point symbols and finding their positions are important for automatic map understanding. Point symbols on maps may partially overlap on each other. More often they are touched or connected by line symbols, and their background consists of colored and/or tex... View full abstract»

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  • Ground-truthing and benchmarking document page segmentation

    Publication Year: 1995, Page(s):601 - 604 vol.2
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    We describe a new approach for evaluating page segmentation algorithms. Unlike techniques that rely on OCR output, our method is region-based: the segmentation output, described as a set of regions together with their types, output order etc., is matched against the pre-stored set of ground-truth regions. Misclassifications, splitting, and merging of regions are among the errors that are detected ... View full abstract»

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  • Incremental character recognition with feature attribution

    Publication Year: 1995, Page(s):837 - 840 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The neural network learning algorithm presented in the paper splits the problem of handwritten digit recognition into easy steps by learning character classes incrementally: at each step, the neurons most relevant to the considered class are fixed so that subsequent classes will not disrupt the knowledge already acquired, but will be able to use it. A new relevance measure is also defined, for whi... View full abstract»

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  • Strategies in character segmentation: a survey

    Publication Year: 1995, Page(s):1028 - 1033 vol.2
    Cited by:  Papers (23)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    This paper provides a review of advances in character segmentation. Segmentation methods are listed under four main headings. The operation of attempting to decompose the image into classifiable units on the basis of general image features is called “dissection”. The second class of methods avoids dissection, and segments the image either explicitly, by classification of specified wind... View full abstract»

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  • Observation method for mathematical graphology

    Publication Year: 1995, Page(s):656 - 659 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    An observation method for mathematical graphology is proposed. The motivation of mathematical graphology is to realize graphological information processing on a machine. Furthermore, mathematical graphology aims to construct a new information theory for visual communication. In order to construct the mathematical model this paper focuses on the observation process, which is the first stage in the ... View full abstract»

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  • A language for document generic layout description and its use for segmentation into regions

    Publication Year: 1995, Page(s):1123 - 1126 vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    We present a segmentation method guided by a generic layout description expressed in a new language. The proposed language allows to describe a page as superposed layers that may be used to separate the main text body from other components, for example figures. The language's novelty resides in the fact that, instead of describing directly the global topology of generic pages according to their re... View full abstract»

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  • Interpretation of conceptual diagrams from line segments and strings

    Publication Year: 1995, Page(s):960 - 963 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    A conceptual diagram is a kind of diagram which represents a logical structure among concepts using simple physical objects (loops, lines and character strings). This paper presents a method of interpretation of conceptual diagrams. In conceptual diagrams, a single physical object plays various logical roles depending on surrounding physical objects, because there are no specific ruled of writing ... View full abstract»

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  • Lexical postprocessing by heuristic search and automatic determination of the edit costs

    Publication Year: 1995, Page(s):857 - 860 vol.2
    Cited by:  Papers (8)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    We describe the realization of a dictionary based lexical postprocessing approach. A character hypotheses lattice (CHL) serves as input which is compared with the words of the vocabulary, using a generalization of the weighted edit distance. The search for the best word is based on a depth first traversal through the paths of the CHL and is directed by several heuristics to achieve a reasonable pr... View full abstract»

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  • Tools for interactive map conversion and vectorization

    Publication Year: 1995, Page(s):927 - 930 vol.2
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    The process of converting an analog map into structured digitized information requires several different operations, which are all time-consuming when performed manually. Strictly automatic processing is not always a possible solution, and an interactive approach can then be an alternative. The paper describes a tool for map conversion, focusing on the functionality for extraction of line structur... View full abstract»

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  • Off-line cursive handwriting segmentation

    Publication Year: 1995, Page(s):894 - 897 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    The segmentation of off-line cursive handwriting is an important step in cursive handwriting recognition. In this paper, a new approach is described for this task. The suggested approach uses a set of heuristic rules to determine possible letter boundaries in the image of a cursive word. The heuristic rules are based on associations that exist between certain geometric and topologic features and t... View full abstract»

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  • Efficient techniques for telephone company line drawing interpretation

    Publication Year: 1995, Page(s):795 - 798 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    In this paper we present the idea of using customizable tools to develop systems to interpret telephone company drawings. These drawings are composed primarily of horizontal and vertical lines. By selecting the intersections as primitives, routines are developed to establish spatial relations of the primitives which are used to describe the structures. Another aspect that as presented is the benef... View full abstract»

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  • A general analysis system for document's layout structure recognition

    Publication Year: 1995, Page(s):597 - 600 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    This paper introduces a new method for transforming the images of a document into its layout structure by the use of an analysis system and several models. The analysis system is independent of the document, and can recognize various documents with the help of some generic models. The definition of a model is based on a document's generic layout structure. The models contain rules necessary for id... View full abstract»

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  • A method of Jia Gu Wen recognition based on a two-level classification

    Publication Year: 1995, Page(s):833 - 836 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    Jia Gu Wen is the earliest Chinese character. Since it has many of the properties of drawings, common recognition methods cannot be efficiently applied. We provide a recognition method using a two-level classification. First, we regard the character as a non-directional graph and extract its topological properties. Thus we separate the JGW characters into different classes. Then, based on the defi... View full abstract»

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  • Power functions and their use in selecting distance functions for document degradation model validation

    Publication Year: 1995, Page(s):734 - 739 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Two document degradation models that model the perturbations introduced during the document printing and scanning process were proposed recently. Although degradation models are very useful, it is very important that we validate these models by comparing the synthetically generated images against real images. In recent past, two different validation procedures have also been proposed to validate s... View full abstract»

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  • A structural model of continuous transformation of handwritten characters

    Publication Year: 1995, Page(s):685 - 688 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    An essential problem in handwriting recognition is how to cope with complex shape deformation, and therefore, the modeling of the deformation and its metamorphosis (transformation of an instance of a class into an instance of the other class via continuous transformation) is a key to breaking through the difficulties in handwriting recognition. Based on the structural feature extraction and descri... View full abstract»

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  • Segmentation of interference marks using morphological approach

    Publication Year: 1995, Page(s):1042 - 1046 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    This paper deals with the extraction of words from printed documents that have interference and other strokes (enclosing curves, underlines etc.). A new algorithm which combines the two processes of thinning and detection of directional strokes to effectively segment not only straight lines but also smooth arbitrarily oriented curves. The algorithms preserve both connectivity and directional chara... View full abstract»

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  • A system for data extraction from forms of known class

    Publication Year: 1995, Page(s):1136 - 1140 vol.2
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    In this paper, we describe a flexible and efficient system for processing forms of a known class. The model is based on attributed relational graphs and the system performs form registration and location of information fields using algorithms based on the hypothesize-and-verify paradigm. A special emphasis has been placed at the low level, where an autoassociator-based connectionist model has exhi... View full abstract»

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  • An intelligent Chinese official document processing system

    Publication Year: 1995, Page(s):974 - 977 vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Automated Chinese official document processing techniques and the public-key based cryptographic methodology are used to improve the efficiency of the existing Chinese executive information systems. They provide executive officials more room to achieve the best decision-making. One of the best solutions in document automation and message transmission is to combine low-cost computing power with sta... View full abstract»

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  • Conjoined location and recognition of street names within a postal address delivery line

    Publication Year: 1995, Page(s):1024 - 1027 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    This paper describes a global model designed to jointly detect and recognize a street name within a delivery line of an handwritten address block image. The model used is based on Hidden Markov Models (HMM). The lines are firstly preprocessed, then segmented and characterized by two types of features. We create a HMM for each street name by simply concatenating the corresponding letter models, ele... View full abstract»

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