Third International Conference on Image Processing and its Applications, 1989.

18-20 July 1989

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Displaying Results 1 - 25 of 143
  • An intelligent system for automatic fire detection in forests

    Publication Year: 1989, Page(s):563 - 570
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (310 KB)

    The use of smoke-analysis is described for fire detection by means of suitably placed standard TV cameras. The paper first gives the smoke detection technique and discusses a method to obtain a suitable description of the scene. Then the intelligent part of the system is described and the methods and heuristics to speed-up the decision process discussed. The sub-system devoted to the translation o... View full abstract»

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  • Architectures for image analysis

    Publication Year: 1989, Page(s):445 - 451
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (500 KB)

    Significant efforts have been underway in the past several years to develop the machinery necessary for real-time image analysis. The paper presents an overview of these image understanding architectures. The authors outline the types of algorithms that are required, describe some of the architectures that are being developed and discuss methods of comparing different types of architectures View full abstract»

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  • Quantification of retinal damage during cardiopulmonary bypass

    Publication Year: 1989, Page(s):319 - 323
    Cited by:  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (512 KB)

    Microembolic ischaemia in the retina, as revealed by fluorescein angiography, has been reported during cardiovascular bypass. Subsequent neurological and intellectual dysfunction have also been observed. Since the eye is an outgrowth of the brain it is possible to assume that similar microemboli occur in that organ. By comparison of pre- and end-bypass operation retinal images, an estimate of the ... View full abstract»

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  • A system for the segmentation of colour images

    Publication Year: 1989, Page(s):441 - 444
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (196 KB)

    Many machine vision applications can be simplified by the recognition of pertinent colours in the image. A system is described for investigating clustering in various colour spaces. This can be used to choose the most suitable colour space for segmentation in a particular Field. The recognition of resistor colour bands is chosen as a specific case study View full abstract»

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  • The processing of laryngoscopic images as a diagnostic aid

    Publication Year: 1989, Page(s):314 - 318
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (240 KB)

    Endoscopy is widely used in the medical field for the visual examination of various parts of the body. Particular use of these instruments is made in Ear, Nose and Throat (ENT) departments for the examination of the larynx-the box like volume within the throat that is used to form the sounds used in speech. There have long been links between the ENT department of the Freeman Hospital, Newcastle up... View full abstract»

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  • An intrafield DCT-codec for consumer application

    Publication Year: 1989, Page(s):553 - 557
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (188 KB)

    An experimental intrafield threshold codec system based on the discrete cosine transform is described. Because it is designed for data reduction purposes in digital consumer video recorders, emphasis is put on a comparatively low complexity realization. The output rate is adjustable between 5 and 35 Mbit/s, and PAL picture quality is obtained at a datarate of 22 Mbit/s View full abstract»

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  • Tracking lines through noise

    Publication Year: 1989, Page(s):436 - 440
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (280 KB)

    Reports work done in an effort to improve the following of line structured data on images of poor quality engineering drawings. There is a substantial literature on processing line drawings; Smith (1987) gives a review of pixel level methods and Joseph (1968) references higher level approaches. These concern binarised images, and their application to poor quality images is limited to overcoming fa... View full abstract»

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  • Medical image processing

    Publication Year: 1989, Page(s):310 - 313
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (264 KB)

    The objective of medical imaging is to obtain information relevant to the detection, diagnosis, treatment and monitoring of disease. Detection relates to screening, as in X-ray mammography for breast cancer. Diagnosis is concerned with the identification of the origins of symptoms; often, the process is that of differential diagnosis, as in distinguishing between various possible causes of jaundic... View full abstract»

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  • An investigation into the use of neural networks for an expert system in nuclear medicine image analysis

    Publication Year: 1989, Page(s):338 - 342
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (240 KB)

    Describes exploratory work on the use of neural networks in building an expert system that will emulate the diagnostic skill of an experienced clinician in the area of nuclear medicine. The long term aim of the project is to produce an automatic reporting system which scans medical images, extracts relevant features, and gives a diagnostic output. Nuclear images contain a substantial amount of `no... View full abstract»

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  • Automatic segmentation and recognition of zip codes on handwritten real mail

    Publication Year: 1989, Page(s):217 - 221
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (336 KB)

    The authors combine statistical and structural techniques for automatic segmentation and recognition of zip codes. This kind of combination has been advocated by several authors. The aim is to incorporate advantages of both approaches, that is to say, the flexibility and the adaptability to noisy patterns, for statistical techniques, and possibility to describe very complex and specific patterns, ... View full abstract»

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  • A pipeline processor employing hexagonal sampling for surface inspection

    Publication Year: 1989, Page(s):156 - 160
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (372 KB)

    The simulation of a pipeline image processor is presented. The pipeline is comprised of a series of common hardware processor elements, each individually programmable to provide a separate function. This architecture results in real-time system implementation at low cost, making it suitable for industrial vision applications. A comparison is made between processes operating on square and hexagonal... View full abstract»

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  • Vector quantization based on visual masking functions for the DPCM and HDPCM coding of coloured pictures

    Publication Year: 1989, Page(s):548 - 552
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (308 KB)

    In DPCM (differential pulse code modulation) or HDPCM (hybrid DPCM) of coloured pictures consisting of three components, every component can be coded with three separate coders, each containing a scalar quantizer. However, more compression can be obtained with one vector quantizer instead of three scalar quantizers. In the article, the attention is focused on the placement of the output vectors in... View full abstract»

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  • Obstacle-free path planning for mobile robots

    Publication Year: 1989, Page(s):431 - 435
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (332 KB)

    In the path planning phase, the representation of the workspace obtained from the preprocessing phase is searched or explored for an obstacle-free path. This search could be for an optimal path, for the most efficiently obtainable path, or for just an obstacle-free path between a given source destination pair. The paper introduces a new general algorithm for the obstacle-free path planning for mob... View full abstract»

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  • Comparative study of two motion estimation techniques

    Publication Year: 1989, Page(s):305 - 309
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (252 KB)

    Describes an investigation carried out to compare the performance of motion estimation algorithms based on phase correlation, and on differential techniques. A method of comparison that has been devised is described, and results obtained are given View full abstract»

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  • Measurement of garment dimensions using machine vision

    Publication Year: 1989, Page(s):197 - 201
    Cited by:  Patents (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (304 KB)

    This paper describes progress in a project to use computer vision to measure the dimensions of knitted garments. The work is being carried out as a joint project involving the Schools of Electronic and Electrical Engineering and Textile and Knitwear Technology at Leicester Polytechnic, with the support and collaboration of HATRA (the Technical Centre for the Knitwear Industry). The original object... View full abstract»

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  • Parallel implementation of image classifier architectures using transputer arrays

    Publication Year: 1989, Page(s):136 - 140
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (256 KB)

    This paper considers fundamental issues with respect to a particular type of classifier architecture (based on a cellular array of logical processors forming a memory network) and investigates and assesses experimentally the relationship between the internal structure of the classifier and the implementational infrastructure realised in terms of a transputer array. The memory network pattern class... View full abstract»

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  • A comparison of Hough transform methods

    Publication Year: 1989, Page(s):73 - 77
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (412 KB)

    An important aspect of any scientific discipline is the objective and independent comparison of algorithms which perform common tasks. In image analysis, this problem has been much neglected. In this paper, the authors present the results and conclusions of a comparison of four Hough transform, HT, based line finding algorithms on a range of realistic images from the industrial domain View full abstract»

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  • Constraint problems in factor analysis of dynamic structures in nuclear medicine

    Publication Year: 1989, Page(s):333 - 337
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (280 KB)

    It is shown that a principal components analysis yields images and curves which contain negative elements and, as such, does not describe the underlying physiology. It does, however, contain the information necessary for distinguishing among dynamic structures. The application of an oblique transformation, based on the non-negativity criterion, to the results of this analysis provides a possible s... View full abstract»

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  • The geometrical testing of 3-dimensional objects with the aid of pattern recognition

    Publication Year: 1989, Page(s):232 - 236
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (272 KB)

    Deals with the automatic geometrical testing of 3-dimensional objects from profile range images. This involves a scheme for automatically aligning, comparing and best fitting profile range images of a component with a corresponding model View full abstract»

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  • Medical image processing using transputer based hardware

    Publication Year: 1989, Page(s):171 - 177
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (452 KB)

    The department of Bio-Medical Physics, University of Aberdeen has its general computational resources for clinical image research provided by a small network based around a DEC Micro-Vax 2 and a DEC VAX 11/750, supported by a dual station SIGMEX ARGS 7000 image display system. The system was initially developed as part of a clinical image data base project and although the VAX processors are well ... View full abstract»

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  • Real-time Arabic handwritten character recognition

    Publication Year: 1989, Page(s):212 - 216
    Cited by:  Papers (1)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (308 KB)

    This paper considers the development of a real-time Arabic handwritten character recognition system. The shape of an Arabic character depends on its position in a given word. The system assumes that characters result from a reliable segmentation stage, thus, the position of the character is known a priori. Four different sets of character shapes have been independently considered. Each set is furt... View full abstract»

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  • Optimal speed up algorithms for template matching on SIMD hypercube multiprocessors with restricted local memory

    Publication Year: 1989, Page(s):151 - 155
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (304 KB)

    The authors propose two parallel template matching algorithms for hypercube multiprocessors with restricted local memory. Using the Gray code mapping, they reduce the communication overhead involved in the execution of template matching algorithms. Both algorithms have been shown to be optimal speed up View full abstract»

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  • Applying a two-stage translational picture encoding method by a single-dimensional cosine transformation

    Publication Year: 1989, Page(s):546 - 547
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (144 KB)

    Supplementing of transformational encoding by encoding a sequence of coefficients magnitudes in a decreasing order of magnitudes results in a to-stage transformational encoding method. When the method is applied to two-dimensional pictures, the method approximates the sequence of transform coefficients magnitudes as a decreasing function which is parametrically described by very few numbers. By us... View full abstract»

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  • Textural analysis methods for the classification of radar images

    Publication Year: 1989, Page(s):426 - 430
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (264 KB)

    Presents a statistical approach to texture analysis. Texture is regarded as a two-dimensional random field defined by a suitable autoregressive model. Two methods are considered. The former employs a two-dimensional linear estimation technique: the grey level of a texture pixel is estimated from a weighted sum of grey levels of its neighbour pixels and the estimator that minimizes the mean-square ... View full abstract»

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  • A feature tracking method for motion parameter estimation in a model-based coding application

    Publication Year: 1989, Page(s):531 - 535
    Cited by:  Patents (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract |PDF file iconPDF (344 KB)

    Presents a method by which the dynamics of facial movement may be parameterised for application in a model-based image coding scheme. A tracking algorithm is described whereby the bounding boxes of the eyes, nose and mouth of the subject are initially located and then tracked over subsequent frames using both block matching and code-book search techniques. The six degrees of freedom required to de... View full abstract»

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