By Topic

IRE Transactions on Information Theory

Issue 2 • Date February 1962

Filter Results

Displaying Results 1 - 17 of 17
  • Bionics or electrology? An introduction to the sensory information processing issue

    Publication Year: 1962, Page(s):74 - 77
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (687 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Sophistication in computers: A disagreement

    Publication Year: 1962, Page(s):78 - 80
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (582 KB)

    There is frequently more or less acrimonious discussion about artificial intelligence and intelligent machines and their place in science. Usually the discussion settles down to the reiteration of two points of view. This paper is concerned with the difference between them. Do they merely reflect two emotional or ethical biases, or is there an underlying technical judgment on which they disagree? ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Decision units in the perception of speech

    Publication Year: 1962, Page(s):81 - 83
    Cited by:  Papers (9)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (467 KB)

    It has been shown experimentally that speech intelligibility is a function of grammatical content. This fact implies that automatic speech recognizers may well need to include information about linguistic structure. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visual Pattern Discrimination

    Publication Year: 1962, Page(s):84 - 92
    Cited by:  Papers (125)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1702 KB)

    Visual discrimination experiments were conducted using unfamiliar displays generated by a digital computer. The displays contained two side-by-side fields with different statistical, topological or heuristic properties. Discrimination was defined as that spontaneous visual process which gives the immediate impression of two distinct fields. The condition for such discrimination was found to be bas... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Kinesthetic-tactile communications

    Publication Year: 1962, Page(s):92 - 99
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1327 KB)

    Machine aids to kinesthetic-tactile communication aim at maximizing the information-transfer rate from an external source to the human user. The display is the central problem. Source messages might be recoded into equal information units presented one at a time to the user, or a temporal or spatial display of the message may permit the user to recode the message perceptually into manageable units... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Estimation of the subjective effects of noise in low-resolution television systems

    Publication Year: 1962, Page(s):99 - 106
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1187 KB)

    A model for the subjective effects of noise on television picture quality is described. Experimental and data-processing procedures are developed from this model which yield a subjective noise sensitivity function of noise frequency for monochrome low resolution video pictures. The results obtained apply to high levels of noise power. Two noise sensitivity functions are obtained using these experi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analog models of neural mechanism

    Publication Year: 1962, Page(s):107 - 112
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1007 KB)

    This paper outlines in condensed form the use that can be made of accurate neural analogs in analyzing the complexities of nervous systems. After a short review of the most pertinent information available in neurophysiology, various ways of modeling neural behavior are discussed. A brief description is given of the "neuromime" we have used. We then describe two applications of this analog. The fir... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Temporal coding of neural responses to acoustic stimuli

    Publication Year: 1962, Page(s):113 - 119
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1029 KB)

    Electric responses to acoustic stimuli have been recorded from the auditory nervous system of cats. Responses of single nerve cells in the cochlear nucleus recorded with microelectrodes, and auditory nerve responses recorded with gross electrodes (which record activity of many cells) are presented as examples of the kinds of data which can be obtained. The behavior of these responses for various c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Neural mechanisms which discriminate events on the skin

    Publication Year: 1962, Page(s):120 - 125
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (995 KB)

    This review examines the historical development of concepts of nervous system organization with special reference to the skin sensory system. The commonly held view that the modalities of sensation are produced solely by the initial filtering action of the receptor organs is shown not to fit the observed physiology of the first and second cells in the sensory pathway. Instead, it is proposed that ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A note on learning signal detection

    Publication Year: 1962, Page(s):126 - 128
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    This paper considers a threshold detector operating on noisy binary pulses. It is shown that an adaptive error-correction procedure can bring the threshold to the point of equal false alarm and missed detection probabilities. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Snow removal--A noise-stripping process for picture signals

    Publication Year: 1962, Page(s):129 - 144
    Cited by:  Papers (16)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3220 KB)

    It is quite often possible to separate "picture" from "noise" in a television image. We do this when we view television under unfavorable conditions. This ability of the human observer suggests that completely automatic operation might at least partially separate noise and picture. A nonstationary, nonlinear operation has been found which selectively removes moderate amounts of additive Gaussian n... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Picture coding using pseudo-random noise

    Publication Year: 1962, Page(s):145 - 154
    Cited by:  Papers (112)  |  Patents (144)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1968 KB)

    In order to transmit television pictures over a digital channel, it is necessary to send a binary code which represents the intensity level at each point in the picture. For good picture quality using standard PCM transmission, at least six bits are required at each sample point, since the eye is very sensitive to the small intensity steps introduced by quantization. However, by simply adding some... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Speech recognition: A model and a program for research

    Publication Year: 1962, Page(s):155 - 159
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (964 KB)

    A speech recognition model is proposed in which the transformation from an input speech signal into a sequence of phonemes is carried out largely through an active or feedback process. In this process, patterns are generated internally in the analyzer according to an adaptable sequence of instructions until a best match with the input signal is obtained. Details of the process are given, and the a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Handwriting and pattern recognition

    Publication Year: 1962, Page(s):160 - 166
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1051 KB)

    Handwriting can be characterized as a sequence of basic strokes connected according to rule. Handwriting so generated approximates that of humans very closely. Such a matching process can be used as the fundamental principle in a handwriting recognizer. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design factors in the development of an optical character recognition machine

    Publication Year: 1962, Page(s):167 - 171
    Cited by:  Papers (4)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (849 KB)

    Interest in optical character recognition has grown tremendously during the past several years. When one considers the volume of printed information that must be accessible both to human readers and to data processing machines, the increasing interest is not at all surprising. Many optical character recognition principles that appear to be quite powerful are impractical or too costly to implement ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The characteristic selection problem in recognition systems

    Publication Year: 1962, Page(s):171 - 178
    Cited by:  Papers (46)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1232 KB)

    Design of pattern recognition systems usually involves a number of uncertainties which can be resolved only by experiment. In statistical recognition systems, pattern information is stored in the machine in the form of pattern characteristics with statistics relating the characteristics to the patterns. If the number of characteristics a system can process is limited, and if the system designer, w... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visual pattern recognition by moment invariants

    Publication Year: 1962, Page(s):179 - 187
    Cited by:  Papers (1246)  |  Patents (32)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1267 KB)

    In this paper a theory of two-dimensional moment invariants for planar geometric figures is presented. A fundamental theorem is established to relate such moment invariants to the well-known algebraic invariants. Complete systems of moment invariants under translation, similitude and orthogonal transformations are derived. Some moment invariants under general two-dimensional linear transformations... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

This Transactions ceased production in 1962. The current retitled publication is IEEE Transactions on Information Theory.

Full Aims & Scope