Image Processing And Its Applications, 1999. Seventh International Conference on (Conf. Publ. No. 465)

1999

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  • Handwritten digits parameterisation for HMM based recognition

    Publication Year: 1999, Page(s):770 - 774 vol.2
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (224 KB)

    Handwriting classification or recognition methods based on neural networks (NN) have been extensively studied and they are now well known. This process, which parameterises the geometric structure of the digits as a previous stage to their recognition by the neural network, has the inconvenience of ignoring the sequential character of handwriting. The method proposed explores the improvement intro... View full abstract»

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  • Perceptual saliency weighted segmentation algorithm

    Publication Year: 1999, Page(s):562 - 566 vol.2
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (388 KB)

    The segmentation of an image is critical to the eventual success or failure of image analysis. Most commonly, the similarity or/and discontinuity between pixels in the image is used to group pixels into regions or to produce region contours. The principal difficulty shared by existing segmentation algorithms is that the segmented regions usually do not reflect the objects as perceived by a human b... View full abstract»

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  • Loop and leaning detection in a text using profile approximation

    Publication Year: 1999, Page(s):765 - 769 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (196 KB)

    This paper deals with the analysis of off line handwritten text from which some characteristics of the style are extracted. By use of a fractal approach, applied to the profiles of a text line, we have defined new parameters that gives the degree of loop on stroke for any writing. In the same way, the average leaning of a hand-written sentence has been reached View full abstract»

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  • Object centred optimisation process for robust multiple object tracking

    Publication Year: 1999, Page(s):691 - 695 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (280 KB)

    In this paper, image processing technologies are utilised in order to aid tracking of multiple objects. The techniques in the paper are demonstrated for an aircraft tracking application, although they can be used in other moving object tracking applications. The aim of this paper is to present an object centred optimisation method, for a sensor, which provides the tracker with optimised object dat... View full abstract»

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  • Identification of human faces

    Publication Year: 1999, Page(s):615 - 619 vol.2
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (260 KB)

    When trying to design artificial systems which may supplement or replace some task of human vision, it is often instructive to examine the features of human vision itself. The article outlines some of the things known about human face perception and recognition which helps one to understand how the human brain achieves the miraculous feats of face perception that it does. It outlines some perceptu... View full abstract»

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  • Automatic line extraction by the square scan algorithm

    Publication Year: 1999, Page(s):832 - 835 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (184 KB)

    This paper describes a new image processing algorithm for the automatic extraction of line features from raster images with width variation. The features are transferred into vector format. The algorithm has capabilities for extracting crossing and branching lines. In addition it has the ability to connect disconnected lines. The algorithm is implemented and also tested on several image cases View full abstract»

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  • Resilient video compression using absolute value coding

    Publication Year: 1999, Page(s):591 - 595 vol.2
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (612 KB)

    In this paper we consider the problem of temporal channel error propagation, within a motion compensated video codec. To combat this problem we propose a new coding strategy, based on the coding of absolute values, rather than differential values. The proposed technique is flexible enough to be useful with a wide variety of coding methods, including DCT, wavelet coding and matching pursuits. Resul... View full abstract»

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  • Staff line restoration

    Publication Year: 1999, Page(s):760 - 764 vol.2
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (220 KB)

    Optical music recognition (OMR), the conversion of scanned pages of music into a musical database, has reached an exciting level of maturity. Like optical character recognition, it has now reached the point where the returns in accuracy from increasingly sophisticated pattern recognition algorithms appears saturated and more significant gains are being made from the application of structured a pri... View full abstract»

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  • List of authors

    Publication Year: 1999, Page(s):xxviii - xxxii
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (168 KB)

    First Page of the Article
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  • Hybrid neural network for the identification of narcotics and explosives

    Publication Year: 1999, Page(s):784 - 788 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (180 KB)

    Raman spectroscopy proves to be a versatile technique for forensic tasks. Whilst it is very easy and fast to record a spectrum, it may be very time-consuming for the non-experts (and even the experts) to identify chemicals from the large database of Raman spectra of these materials. Parallel developments in the field of neural networks have come to a stage that they can participate well in the rec... View full abstract»

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  • Learning structural change for identification and tracking of vehicles moving in open world scenes

    Publication Year: 1999, Page(s):706 - 710 vol.2
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (432 KB)

    This paper describes a system, which is able to track multiple man made objects, typically vehicles moving in a natural open world scene. The system interprets changes in structural features in the scene across consecutive image frames and uses the change in structure to identify and track man made objects (target). No a priori knowledge of any structure within the image is assumed. Differences in... View full abstract»

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  • Recovering the 3D shape of a road by vision

    Publication Year: 1999, Page(s):686 - 690 vol.2
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (220 KB)

    This paper deals with a method designed to recover the 3D geometry of a road by using an on-boarded monocular monochromatic camera. The reconstruction process is able to compute the 3D coordinates of the road axis points. It needs the camera height with respect to the ground as well as the width of the road to be known. It also requires the detection in the image of the road edges. The paper descr... View full abstract»

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  • An improved fractal image compression scheme embedding DCT encoder

    Publication Year: 1999, Page(s):610 - 614 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (264 KB)

    The fractal technique is efficient in reducing redundancy for encoding images at high compression ratios. However, it is computationally expensive, especially to those images containing many rugged boundaries and fine textures. That is due to the increasing range-to-domain matching operations for small range blocks. A novel method combining fractal and DCT (discrete cosine transform) encoders is p... View full abstract»

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  • Tongue tracking in medical X-ray sequences

    Publication Year: 1999, Page(s):494 - 497 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (348 KB)

    This payer presents a system for the automated tracking of non-rigid anatomic structures in two-dimensional image sequences. It is applied to X-ray image sequences of the vocal tract. In this application articulatory organs have to be measured to investigate the complex dynamic characteristics of human speech production, with particular interest in the robust boundary detection of non-rigid organs... View full abstract»

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  • Temporal knowledge for cooperative distributed vision

    Publication Year: 1999, Page(s):726 - 730 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (300 KB)

    The development of a distributed vision system (DVS) performing continuous surveillance is an interesting area of investigation. We are interested in the interpretation of wide areas, this constraint means that numerous sensors have to be distributed in space and have to cooperate in order to obtain a global interpretation. In the European community the SMART project, close to the video surveillan... View full abstract»

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  • A fast adaptive superresolution technique for image restoration

    Publication Year: 1999, Page(s):827 - 831 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (272 KB)

    The authors propose a fast adaptive method of superresolution using a Wiener filter in conjunction with iteration for projection onto convex sets (POCS). The algorithm is robust and adaptive in noise reduction and has very fast convergence. Moreover the algorithm does not require knowledge of the point spread function (psf) of the imaging system View full abstract»

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  • Colour image coding by visually meaningful image patterns

    Publication Year: 1999, Page(s):586 - 590 vol.2
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (344 KB)

    Visually meaningful patterns (visual patterns) are a set of predefined image blocks representing information that the human visual system is very sensitive to. A colour image coding technique based on visual patterns is introduced. An image is divided into small blocks each of which is mapped to one of the visual patterns. Each block can then be represented by the pattern and by the colour informa... View full abstract»

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  • Automatic identification of cracks in road surfaces

    Publication Year: 1999, Page(s):671 - 675 vol.2
    Cited by:  Papers (4)  |  Patents (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (340 KB)

    The Highways Agency required a high speed automatic crack monitoring system capable of identifying and locating surface cracks of widths of approximately 2 mm and greater, over at least 80% of the width of a traffic lane (the width of traffic lanes on motorways and all-purpose trunk roads ranges approximately between 3 m and 3.65 m). Transport Research Laboratory Ltd., assisted by Softronic System... View full abstract»

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  • Fast image fusion with a Markov random field

    Publication Year: 1999, Page(s):557 - 561 vol.2
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (268 KB)

    The author demonstrates that the relatively quick fusion of edge information across a number of registered images (possibly from different sensors) is possible using a Markov random field approach. The speed of the method relies on the fixing the pixel value and only optimising the boundary parameter in the model. This more simple optimisation can be undertaken with the demonstrably less computati... View full abstract»

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  • Page similarity and the Hausdorff distance

    Publication Year: 1999, Page(s):755 - 759 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (276 KB)

    The VideoWriter is a real-time system that uses digitized images from a computer-controlled video camera to find the location of pages on a desktop. Once an image of a page is extracted, the system must determine if the page has been previously stored. We investigate the use of the Hausdorff distance metric to compare two-level versions of page images. The Hausdorff distance metric does not requir... View full abstract»

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  • Seventh International Conference An Image Processing And Its Applications

    Publication Year: 1999, Page(s):i - xxvii
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (552 KB)

    First Page of the Article
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  • A novel watermark embedding and detection scheme for images in DFT domain

    Publication Year: 1999, Page(s):780 - 783 vol.2
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (236 KB)

    This paper presents a novel watermark embedding and detection scheme for copyright protection of images, in the discrete Fourier transform domain. A scheme for generating, embedding and a new concept of detecting the presence of a watermark is proposed. This facilitates the detection of a watermark without any need for the original image. Since the proposed scheme embeds watermarks independent of ... View full abstract»

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  • Tracking using self-initialising active meshes

    Publication Year: 1999, Page(s):701 - 705 vol.2
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (304 KB)

    This paper describes a method of visual tracking using an `active-mesh' that is automatically created and configured directly from a single frame of an image sequence. The aim of this approach is to perform visual tracking in unconstrained motion environments, allowing movement of the camera, the scene and even the inclusion of background-independent moving objects View full abstract»

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  • An algorithm for face and facial-feature location based on grey-scale information and facial geometry

    Publication Year: 1999, Page(s):625 - 629 vol.2
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (348 KB)

    We describe a two-stage algorithm for detecting human faces based on the grey-scale information of the input image and facial geometry. The first stage involves locating approximately the head boundaries and the facial features, the exact locations of which are determined in the second stage. The algorithm is evaluated on data sets and some characteristics of its performance are identified. As wel... View full abstract»

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  • A window-based image processing approach for real-time road traffic analysis

    Publication Year: 1999, Page(s):681 - 685 vol.2
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (296 KB)

    Various researchers for a number of years have investigated traffic data collection and analysis. Many techniques have been proposed to speed up the operations and some intelligent approaches have been developed to compensate the effects of lighting, shadows and occlusions. To achieve real-time processing, it is necessary to reduce the amount of data to be processed, so the first question is to de... View full abstract»

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