IEE Proceedings E - Computers and Digital Techniques

Issue 5 • September 1980

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Displaying Results 1 - 11 of 11
  • Special issue on image restoration and enhancement

    Publication Year: 1980, Page(s):157 - 159
    IEEE is not the copyright holder of this material | PDF file iconPDF (543 KB)
    Freely Available from IEEE
  • Conference report. 1980 conference on pattern recognition

    Publication Year: 1980, Page(s):159 - 160
    IEEE is not the copyright holder of this material | PDF file iconPDF (222 KB)
    Freely Available from IEEE
  • Optimisation techniques for digital image reconstruction from their projections

    Publication Year: 1980, Page(s):161 - 169
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1024 KB)

    A method is proposed for the digital reconstruction of images from their projections based on optimising specified performance criteria. The reconstruction problem is embedded into the framework of constrained optimisation and its solution is shown to lead to a relationship between the image and the one-dimensional Lagrange functions associated with each cost criterion. Two types of geometries (th... View full abstract»

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  • Maximum entropy algorithm applied to image enhancement

    Publication Year: 1980, Page(s):170 - 172
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (683 KB)

    A model is suggested for assigning the prior probability of an image in Bayes' theorem which leads to a very general algorithm for image enhancement. Examples of sharpening blurred photographs show how the success of deconvolution depends on the signal/noise ratio in the degraded images. View full abstract»

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  • Multiple bandpass filters in image processing

    Publication Year: 1980, Page(s):173 - 184
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2837 KB)

    A system of bandpass filters, modelled on the early mechanisms of human vision, is described which provides a simple means to eliminate blur and noise from an image. The system automatically adjusts itself to suit local signal conditions in an image, without prior knowledge of signal statistics. View full abstract»

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  • Assessment of scintigram quality

    Publication Year: 1980, Page(s):185 - 192
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1191 KB)

    The application of standard psychophysical techniques to the measurement of the quality of noisy images is shown using examples taken from clinical radionuclide imaging. In clinical radionuclide imaging the distribution of a radiopharmaceutical injected into a patient is mapped in vivo by using a scintillation detector to record the emitted gamma rays. Areas of above or below average radiopharmace... View full abstract»

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  • Synthesis and enhancement of the radionuclide tomographic section

    Publication Year: 1980, Page(s):193 - 196
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (547 KB)

    In principle, it is possible to perfectly reconstruct a two-dimensional density distribution from measurements of one-dimensional projections, subject to certain restrictions on the data, by using one of a number of analytical reconstruction techniques. The radionuclide tomographic section, a map of radiopharmaceutical concentration in a chosen plane of an object, is reconstructed from measurement... View full abstract»

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  • Microprocessor-based interactive image-processing system

    Publication Year: 1980, Page(s):197 - 202
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (785 KB)

    The hardware of a microprocessor-based interactive image-processing system is described. This system incorporates a two-dimensional charge-coupled-device imaging array and can digitise 100 ¿¿ 100 element images at a rate of 6Hz. A visual-display monitor is provided for the immediate display of the digitised picture information, and a floppy disc is included for the permanent storage of data. The s... View full abstract»

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  • Command language for interactive image analysis

    Publication Year: 1980, Page(s):203 - 218
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1087 KB)

    A simple command language for controlling an interactive image analyser is described. A set of about a hundred basic commands is listed. These may be performed singly, in groups, or they may be combined, given a name and executed as a macro. The language contains facilities for looping, branching and generating data for use by other programs. View full abstract»

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  • Clip 4 parallel processing system

    Publication Year: 1980, Page(s):219 - 224
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1105 KB)

    A machine, Clip 4, is described, which is based on the ideas of parallel image processing developed at University College London. The major sections of the machine are outlined, including the processor array, which comprises 1152 custom-designed integrated circuits. A programming language has been developed and the application of the hardware/software system to a number of image-processing problem... View full abstract»

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  • Processing and synthesis of biological data

    Publication Year: 1980, Page(s):225 - 227
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (570 KB)

    Methods for improving the quality and interpretation of electron micrographs of biological materials are discussed. The effectiveness of the methods is illustrated by practical examples. View full abstract»

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Aims & Scope

Published from 1980-1993, IEE Proceedings E contained significant and original contributions on computers, computing and digital techniques. It contained technical papers describing research and development work in all aspects of digital system-on-chip design and the testing of electronic and embedded systems, including the development of design automation tools. It was aimed at researchers, engineers and educators in the fields of computer and digital systems design and testing.

Full Aims & Scope