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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  • An IRAM architecture for image analysis and pattern recognition

    Publication Year: 1998, Page(s):1561 - 1564 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    A new intelligent RAM (IRAM) architecture based on embedding DRAM memory and many simple processors on a chip is introduced. While the architecture can perform massively-parallel computation, it can also be used as plain DRAM. Some key parts of the architecture are discussed, and examples of image analysis algorithms that can run on it are given View full abstract»

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  • An interactive image segmentation method based on dynamic programming and its application in medical image analysis

    Publication Year: 1998, Page(s):1558 - 1560 vol.2
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    In this paper we present an interactive image segmentation method based on DP (dynamic programming), and extend the method in two aspects. First, we append a training mechanism to enhance the robustness of our approach to local noise; Second, we integrate the region-based segmentation with DP to improve the accuracy of image segmentation. A number of experiments show that our approach performs wel... View full abstract»

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  • An efficient surface mesh representation adaptive to local smoothness

    Publication Year: 1998, Page(s):1555 - 1557 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    The problem of fitting a mesh to a surface, whether defined analytically or by image data, requires consideration of accuracy and attendant computational cost. The accuracy of the surface fit depends on the size of mesh elements. Distributing large mesh elements to surface parts with low curvature and small ones to those with high curvature enables efficient use of mesh elements. In this paper, we... View full abstract»

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  • Classification of TV sports news by DCT features using multiple subspace method

    Publication Year: 1998, Page(s):1488 - 1491 vol.2
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (64 KB)

    This paper proposes a method to classify automatically TV sports news articles using image processing and classification techniques. The classification algorithm of TV sports news articles is based on a multiple subspace method that provides a sports category with more than one subspaces corresponding to the typical scenes. The classification is performed without recognizing any objects in an imag... 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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  • Segmentation of low-quality typewritten digits

    Publication Year: 1998, Page(s):1106 - 1109 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (52 KB)

    This work addresses the segmentation of numeric fields in forms presenting blurring, breaks and touching in digits. In an OCR system, the segmentation phase plays a determinant role in the global accuracy of the system. Segmentation is basically addressed from two approaches: (a) as an isolated phase in the OCR process, and (b) as interacting with the recognition of the segmented item. In this wor... View full abstract»

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  • Fuzzy approach to contrast enhancement

    Publication Year: 1998, Page(s):1549 - 1551 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    Commonly used techniques for contrast enhancement fall into two categories: (1) indirect methods and (2) direct methods. In this paper, we propose a novel, fuzzy, adaptive, direct contrast enhancement method based on the fuzzy entropy principle and fuzzy set theory. The proposed approach has much better adaptability and can determine the enhancement parameters automatically according to the nature... 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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  • Appearance-based automatic target recognition in overhead LADAR range imagery

    Publication Year: 1998, Page(s):1320 - 1324 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    This paper presents an algorithm for automatic target recognition in, overhead LADAR range imagery using “appearance-based” models. The detection is accomplished using a two stage Hough transform where the target is modelled as a small set of boundary pixels with associated local properties. The first stage Hough transform keeps tracks of all the edge points matched by the model points... View full abstract»

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  • CLICK-IT: interactive television highlighter for sports action replay

    Publication Year: 1998, Page(s):1484 - 1487 vol.2
    Cited by:  Papers (6)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    CLICK-IT (CSIRO Laboratory for Imaging by Content and Knowledge-Interactive Television) is a PC-based system which provides the user with an intelligent highlighter pen for sports action replay. It is intended as a truly interactive improvement on the drawing pad technology currently used for video annotation in sports broadcasting. The system uses computer vision techniques to focus attention and... View full abstract»

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  • Pre-processing colour images with a self-organising map: baking curve identification and bake image segmentation

    Publication Year: 1998, Page(s):1771 - 1775 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Kohonen's self-organising map is used to identify the colour development of baked goods from samples taken during baking. The resulting bake curves represent the colours characteristic of a particular baked product. Images of baked goods can be segmented and foreign bodies identified using these baking curves View full abstract»

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  • A genetic algorithm based method to improve image segmentation

    Publication Year: 1998, Page(s):1015 - 1017 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    Segmentation of textured images is becoming more and more important in applications, as quality control or remote sensing. Segmentation of textured images is demanding. A new genetic algorithm based method to post-process segmented texture images is presented. A genetic algorithm is used to extract web-like rules from segmented texture images. These rules are checked and they are used in post-proc... View full abstract»

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  • Fast segmentation of planar surfaces in range images

    Publication Year: 1998, Page(s):985 - 987 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    A new algorithm for planar face segmentation in range images is introduced. The segmentation is based on a combination of recursive adaptive regression model prediction for detecting range image step discontinuities which are present at object face borders and of a region growing on surface lines. Border pixels are detected in two perpendicular directions and detection results are combined togethe... View full abstract»

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  • A two-stage classifier for broken and blurred digits in forms

    Publication Year: 1998, Page(s):1101 - 1105 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    A classifier for an automatic system that recognizes multifont typewritten digits, often broken and blurred, in forms is presented. The classification, which is based on the utilization of a global feature, is applied in two phases. Firstly, a minimum distance method (1-NN) is applied in a multifont classifier to provide a global classification of the patterns in a form. A problem associated to mu... View full abstract»

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  • A knowledge-based automated vectorizing system for geographic information system

    Publication Year: 1998, Page(s):1546 - 1548 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    Recently, there is a growing interest from various fields of studies in GIS which promotes efficient storage and retrieval of geographic information. The development of automated vectorizing system, an input method for GIS, is of extreme importance due to the fact that this part of constructing a GIS has been time consuming. Most vectorizing systems require users to set parameters as appropriately... View full abstract»

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  • Recognition of facial expressions using muscle-based feature models

    Publication Year: 1998, Page(s):1379 - 1381 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    We present a technique for recognizing facial expressions from image sequences. The technique uses muscle-based feature models for tracking facial features. Since the feature models are constructed with a small number of parameters and are deformable in the limited range and directions, each search space for a feature can be limited. The technique estimates muscular contractile degrees for classif... View full abstract»

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  • A unifying framework for relational structure matching

    Publication Year: 1998, Page(s):1316 - 1319 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (72 KB)

    The matching of relational structures is a problem that pervades computer vision and pattern recognition research. During the past few decades, two radically distinct approaches have been pursued to tackle it. The first views the matching problem as one of explicit search in state-space. The most popular method within this class consists of transforming it in the equivalent problem of finding a la... View full abstract»

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  • Automatic video parsing using shot boundary detection and camera operation analysis

    Publication Year: 1998, Page(s):1481 - 1483 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (140 KB)

    We present an efficient video parsing method using shot boundary detection and camera operation analysis technique. In the shot boundary detection, the local color information and an adaptive time window is used. The local spatio-temporal images and multilayer perceptron are used for analyzing the camera operations. In order to verify the performance of the proposed video parsing method, experimen... View full abstract»

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  • Atmospheric turbulence visualisation through image time-sequence registration

    Publication Year: 1998, Page(s):1768 - 1770 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    A novel method for visualising atmospheric turbulence is described, based on a point-by-point registration to subpixular accuracy of multiple telescopic images of scenes distorted by the atmosphere, both astronomical and terrestrial. The registration, which produces detailed x and y shift-maps over the space of each image in the sequence, is based on hierarchical, windowed area-correlation. Each x... View full abstract»

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  • Helping computer vision by verbal and nonverbal communication

    Publication Year: 1998, Page(s):1216 - 1218 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (132 KB)

    Proposes a method of removing ambiguities in robot tasks by a multimodal human-robot interface consisting of verbal and nonverbal communication. Such ambiguities often arise from failures of the robot vision system. However, it is not easy to solve this problem only by improving computer vision techniques. Thus, our robot asks a human such a question that a natural reply to it will contain helpful... View full abstract»

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