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IEEE Spectrum

Issue 5 • Date May 1996

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Displaying Results 1 - 10 of 10
  • First among equals [book review]

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (349 KB)
    Freely Available from IEEE
  • Eavesdropping at its electronic best

    Publication Year: 1996
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB)

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  • Cortical implants for the blind

    Publication Year: 1996, Page(s):54 - 59
    Cited by:  Papers (20)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1283 KB)

    Arrays of stimulating electrodes can be placed in the brain itself, in the visual cortex, to bring vision to the profoundly blind. However, when designing such devices one needs to take into consideration the fact that the visual pathway maps images onto cortical structures in a complex and unpredictable way. View full abstract»

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  • Fresh dates are giving computers indigestion [faults and failures]

    Publication Year: 1996
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

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  • Learning to see

    Publication Year: 1996, Page(s):60 - 69
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2612 KB)

    The mind cannot make sense of the visual world out of raw image data alone. In an approach to visual processing known as learning from examples, computational neural networks and physiological studies suggest how neurons and machines adapt to novel images on the basis of past experience View full abstract»

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  • Neuromorphic vision chips

    Publication Year: 1996, Page(s):38 - 46
    Cited by:  Papers (24)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2684 KB)

    Analog circuits based on resistive networks emulate the behavior of the vertebrate eye, detecting edges, differentiating between surfaces, and estimating motion. The speed and simplicity of these devices make them candidates for applications ranging from security systems to retinal replacements View full abstract»

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  • Digital signal processing comes of age

    Publication Year: 1996, Page(s):70 - 74
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2116 KB)

    Advances both in semiconductor technology and in software tools are ushering in a golden era for processing analog signals digitally. With DSP chips popping up in everything from cellular phones to automobiles to security systems, today's designer needs to grasp the options and tradeoffs that DSP presents in order to create a successful electronic system View full abstract»

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  • Ocular implants for the blind

    Publication Year: 1996, Page(s):47 - 53
    Cited by:  Papers (45)  |  Patents (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    Now in early development, an ultra-thin array of electrodes, powered by a laser and placed directly on surviving neurons of the retina, could provide usable percepts of light for the visually impaired View full abstract»

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  • Toward an artificial eye

    Publication Year: 1996, Page(s):20 - 29
    Cited by:  Papers (13)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4984 KB)

    Computer engineering, ophthalmology, and biology are uniting in an effort to bring sight to the blind. The research tracks are now clear, and different types of electronic prostheses should be appearing by the year 2010 View full abstract»

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  • The computational eye

    Publication Year: 1996, Page(s):30 - 37
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4124 KB)

    Specialized cells in the eye work in parallel for unequaled image processing and computation. Millionfold swings in light intensity from the outside world, transformed to electrical signals, are processed in space and time for contrast and edge enhancement, as well as to detect motion View full abstract»

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