Proceedings. Fourteenth International Conference on Pattern Recognition (Cat. No.98EX170)

20-20 Aug. 1998

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  • Proceedings Fourteenth International Conference On Pattern Recognition [front matter]

    Publication Year: 1998, Page(s):i - xxxvi
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    Freely Available from IEEE
  • Author index

    Publication Year: 1998, Page(s):xxxvii - xlvii
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    Freely Available from IEEE
  • Colour based object tracking

    Publication Year: 1998, Page(s):1442 - 1444 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (604 KB)

    A method of detecting and tracking objects using colour is presented. We track objects using a simple colour histogram based technique, which is fast and more robust to occlusion and camera motion than simple "blob" based techniques. View full abstract»

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  • An effective entropic thresholding for ultrasonic images

    Publication Year: 1998, Page(s):1552 - 1554 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (350 KB)

    A new entropy-based thresholding is presented. As a result, a gray level minimizing the difference between the entropy of the object and that of the background will be the desired threshold. Performance of the proposed method has been tested on some ultrasonic images. The results obtained from the method proposed by Kapur et al. (1985) are also given for comparison. View full abstract»

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  • Personal identification based on handwriting

    Publication Year: 1998, Page(s):1761 - 1764 vol.2
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (63 KB)

    Many techniques have been reported for handwriting-based writer identification. Most techniques assume that the written text is fixed (e.g., in signature verification). In this paper we attempt to eliminate this assumption by presenting a novel algorithm for automatic text-independent writer identification. Given that the handwriting of different people can often be visually distinctive, we take a... View full abstract»

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  • Handwritten signature verification based on neural `gas' based vector quantization

    Publication Year: 1998, Page(s):1862 - 1864 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (600 KB)

    This paper propose a vector quantization (VQ) technique to solve the problem of handwritten signature verification. A neural `gas' model is trained to establish a reference set for each registered person with handwritten signature samples. Then a test sample is compared with all the prototypes in the reference set and the system outputs the label of the writer of the word. Several different featur... View full abstract»

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  • On the selection of image compression algorithms

    Publication Year: 1998, Page(s):1500 - 1504 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (288 KB)

    This paper attempts to give a recipe for selecting one of the popular image compression algorithms based on: 1) wavelet, 2) JPEG/DCT, 3) vector quantisation, and 4) fractal approaches. We review and discuss the advantages and disadvantages of these algorithms for compressing gray-scale images, give an experimental comparison on four 256×256 commonly used images (Jet, Lenna, Mandrill, Peppers... View full abstract»

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  • A model based approach in extracting and generating human motion

    Publication Year: 1998, Page(s):1201 - 1205 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (932 KB)

    Introduces a model based approach in acquiring motion of a human body from a video image sequence. A model can not only help recognition of a human in the images, but also save the cost in 3D sensing. A 3D human model which has the function of articulate motion and changeable size, color and surface shape is provided. The model can be driven either automatically or manually through a graphics inte... View full abstract»

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  • An improvement of on-line Japanese character recognition system for visually disabled persons

    Publication Year: 1998, Page(s):1752 - 1754 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (184 KB)

    We developed an online Japanese character entry system with handwriting input device for visually disabled persons (particularly, acquired blind persons). This system is composed of an electric tablet for writing a character, a hand controller for controlling the system condition, a recognition algorithm of handwritten characters, and a voice synthesizer which indicates a recognized character. We ... View full abstract»

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  • A modular classification scheme with elastic net models for handwritten digit recognition

    Publication Year: 1998, Page(s):1859 - 1861 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (552 KB)

    This paper describes a modular classification system for handwritten digit recognition based on the elastic net model. We use ten separate elastic nets to capture different features in the ten classes of handwritten digits and represent an input sample from the activations in each net by population decoding. Compared with traditional neural networks based discriminant classifiers, our scheme featu... View full abstract»

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  • A new fuzzy geometric representation for online isolated character recognition

    Publication Year: 1998, Page(s):1121 - 1123 vol.2
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (92 KB)

    Introduces a fuzzy representation for isolated character description. This representation maps a character from its original sequence of 2D coordinates into a fuzzy vector space that can thereafter serve as input to any artificial neural network classifier. Recognition experiments on isolated digits extracted from the UNIPEN database are their conducted to evaluate the performances of the proposed... View full abstract»

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  • A system for automatic recognition of engineering drawing entities

    Publication Year: 1998, Page(s):1157 - 1159 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (36 KB)

    The paper describes the VEDI (Vectorization of Engineering Drawing Images) system developed for automatic recognition of main engineering drawing (ED) entities. The main principles of ED interpretation are introduced and the algorithms to recognize main ED entities are briefly described. In conclusion, some technical parameters and experimental results of the system performance are given View full abstract»

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  • Automatic text location in images and video frames

    Publication Year: 1998, Page(s):1497 - 1499 vol.2
    Cited by:  Papers (30)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (524 KB)

    Automatic text location (without character recognition capabilities) deals with extracting image regions that contain text only. The images of these regions can then be fed to an optical character recognition module or highlighted for users. This is very useful in a number of applications such as database indexing and converting paper documents to their electronic versions. The performance of our ... View full abstract»

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  • Fast searching of digital face libraries using binary image metrics

    Publication Year: 1998, Page(s):1235 - 1237 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (624 KB)

    We describe a shape comparison method applicable to fast screening of large facial databases. The proposed technique derives holistic similarity measures without the explicit need of point-to-point correspondence thus delivering speed and tolerance to local non-rigid distortions. Specifically, we developed a face similarity measure derived as a variant of the Hausdorff distance by introducing the ... View full abstract»

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  • Face recognition using multiple image view line segments

    Publication Year: 1998, Page(s):1198 - 1200 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (52 KB)

    Describes an image-based face recognition technique using line segments of 2D image views that achieves high generalisation recognition rates for rotations both in and out of the plane, is invariant to scaling, and has reduced execution times. Results show that the algorithm is superior compared with benchmark algorithms and is able to recognise test views in quasi real-time View full abstract»

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  • Direction-change features of imaginary strokes for on-line handwriting character recognition

    Publication Year: 1998, Page(s):1747 - 1751 vol.2
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (108 KB)

    We found suitable direction-change features of the imaginary strokes in the pen-up state for online handwritten cursive character recognition. Our method simultaneously uses both directional features, otherwise known as off-line features, and direction-change features, which we designed as on-line features. Direction-change features express both written strokes in the pen-down state and unwritten ... View full abstract»

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  • Real time recognition of gesture and gesture degree information using multi input image sequences

    Publication Year: 1998, Page(s):1855 - 1858 vol.2
    Cited by:  Papers (4)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (156 KB)

    Presents a real time gesture recognition method for interactive systems which can perform an interaction like human communication. This method recognizes a user's gesture and the degree information of gesture using the eigenspace constructed from multi input image sequences. This eigenspace represents an approximate 3 dimensional information of gesture, so that complicated gestures which may have ... View full abstract»

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  • Use of explicit knowledge and GIS data for the 3D evaluation of remote sensing images

    Publication Year: 1998, Page(s):1413 - 1415 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (392 KB)

    The evaluation of 3D scenes observed from different sensors requires the co-registration of sensor images and the reconstruction of the 3D geometry. To solve both tasks the presented system exploits prior knowledge, represented explicitly by semantic nets, and uses a digital landscape model of a geographic information system (GIS) as a hint for the object location. This is shown for the detection ... View full abstract»

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  • Corner detection using vector potential

    Publication Year: 1998, Page(s):1018 - 1021 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (176 KB)

    This paper describes how corner detection can be realised using a new feature representation that has recently been successfully exploited for edge and symmetry detection. The feature representation based on an magneto-static analogy. The idea is to compute a vector potential by appealing to an analogy in which the Canny edge-map is regarded as an elementary current density residing on the image p... View full abstract»

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  • Character recognition in bookshelf images by automatic template selection

    Publication Year: 1998, Page(s):1117 - 1120 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (124 KB)

    Presents a multiple-dictionary method for recognizing low-quality characters in scene images. First, the environmental conditions of an input image are estimated using an initial dictionary. Then, a relevant dictionary from multiple dictionaries reflecting different environmental conditions is automatically selected from the estimation and used for recognition. Experiments are made for characters ... View full abstract»

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  • Foveate wavelet transform for camera motion recovery from videos

    Publication Year: 1998, Page(s):1445 - 1448 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (92 KB)

    In this paper, a new variable resolution technique, foveate wavelet transform (FWT), is proposed to represent video frames in order to reduce the bandwidth storage requirement through emulating the animate visual systems. As its application, an FWT-based method purporting to recover camera motions from video clips is developed. With this method, the motion vectors are first estimated for the FWT r... View full abstract»

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  • E-mail signature block analysis

    Publication Year: 1998, Page(s):1153 - 1156 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (664 KB)

    The signature block is a common structured component found in e-mail messages. Accurate identification and analysis of signature blocks are important in many multimedia messaging and information retrieval applications such as e-mail text-to-speech rendering. Traditional text analysis methods designed to deal with sequential text cannot handle 2D structures, while the highly unconstrained nature of... View full abstract»

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  • Digital archiving of an archaeological excavation site for multimedia display

    Publication Year: 1998, Page(s):1492 - 1496 vol.2
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (628 KB)

    Archiving of archaeological excavation sites with rich data, pictures and graphs has been required for long time. This paper introduces an effort to register 3D graphics data of an excavation site at the world famous Terra-Cotta Warriors and Horse Museum. The measured data including shapes and colors are processed for archaeology research, unearthed finds preservation, multimedia textbook and virt... View full abstract»

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  • Semi-automated Maltese front position determination

    Publication Year: 1998, Page(s):1382 - 1386 vol.2
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (200 KB)

    The authors investigate the reliability of a semi-automated system designed to locate the Maltese front from satellite AVHRR and SAR imagery. The opening and closing operations of mathematical morphology afford a means of image segmentation that provides smooth, strong, continuous edges except where the edges are obscured by clouds or similar phenomena. The authors evaluate the results by comparin... View full abstract»

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  • Image analysis and classification of HEp-2 cells in fluorescent images

    Publication Year: 1998, Page(s):1677 - 1679 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (8 KB)

    The kind of cells considered in this application are Hep-2 cells, which get used for the identification of antinuclear autoantibodies (ANA). Hep-2 cells allow recognition of over 30 different nuclear and cytoplasmic patterns, which are given by upwards of 100 different autoantibodies. The identification of the patterns is usually done manually by a human inspecting the slides with a microscope. In... View full abstract»

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