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Pattern Analysis and Machine Intelligence, IEEE Transactions on

Issue 4 • Date July 1984

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Displaying Results 1 - 24 of 24
  • [Front cover]

    Publication Year: 1984 , Page(s): c1
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  • List of Contributors

    Publication Year: 1984 , Page(s): nil1
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  • [Breaker page]

    Publication Year: 1984 , Page(s): nil1
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  • Opinion

    Publication Year: 1984 , Page(s): 385
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  • Research on Machine Recognition of Handprinted Characters

    Publication Year: 1984 , Page(s): 386 - 405
    Cited by:  Papers (87)  |  Patents (5)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5033 KB)  

    Machine recognition of handprinted Chinese characters has recently become very active in Japan. Both from the practical and the academic point of view, very encouraging results are reported. The work is described systematically and analyzed in terms of so-called feature matching, which is likely to be the mainstream of the research and development of machine recognition of handprinted Chinese char... View full abstract»

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  • Analysis and Design of a Decision Tree Based on Entropy Reduction and Its Application to Large Character Set Recognition

    Publication Year: 1984 , Page(s): 406 - 417
    Cited by:  Papers (32)  |  Patents (7)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2741 KB)  

    Based on a recursive process of reducing the entropy, the general decision tree classifier with overlap has been analyzed. Several theorems have been proposed and proved. When the number of pattern classes is very large, the theorems can reveal both the advantages of a tree classifier and the main difficulties in its implementation. Suppose H is Shannon's entropy measure of the given problem. The ... View full abstract»

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  • Bayesian Recognition of Local 3-D Shape by Approximating Image Intensity Functions with Quadric Polynomials

    Publication Year: 1984 , Page(s): 418 - 429
    Cited by:  Papers (35)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (7523 KB)  

    The recognition in image data of viewed patches of spheres, cylinders, and planes in the 3-D world is discussed as a first step to complex object recognition or complex object location and orientation estimation. Accordingly, an image is partitioned into small square windows, each of which is a view of a piece of a sphere, or of a cylinder, or of a plane. Windows are processed in parallel for reco... View full abstract»

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  • 3-D Space Location and Orientation Parameter Estimation of Lambertian Spheres and Cylinders From a Single 2-D Image By Fitting Lines and Ellipses to Thresholded Data

    Publication Year: 1984 , Page(s): 430 - 441
    Cited by:  Papers (13)  |  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4243 KB)  

    An approach to object location and orientation estimation is discussed in which objects in 3-D space are approximated by chunks of spheres, cylinders, and planes. The surface-shape parameters of these chunks of primitive subobjects are estimated in real time from a single 2-D image assuming a Lambertian reflection model. This processing is realized by partitioning an image into small square window... View full abstract»

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  • Two-Dimensional Critical Point Configuration Graphs

    Publication Year: 1984 , Page(s): 442 - 450
    Cited by:  Papers (26)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2520 KB)  

    The configuration of the critical points of a smooth function of two variables is studied under the assumption that the function is Morse, that is, that all of its critical points are nondegenerate. A critical point configuration graph (CPCG) is derived from the critical points, ridge lines, and course lines of the function. Then a result from the theory of critical points of Morse functions is ap... View full abstract»

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  • Discrete Representation of Straight Lines

    Publication Year: 1984 , Page(s): 450 - 463
    Cited by:  Papers (33)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3398 KB)  

    If a continuous straight line segment is digitized on a regular grid, obviously a loss of information occurs. As a result, the discrete representation obtained (e.g., a chaincode string) can be coded more conveniently than the continuous line segment, but measurements of properties (such as line length) performed on the representation have an intrinsic inaccuracy due to the digitization process. I... View full abstract»

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  • Multiprocessor Pyramid Architectures for Bottom-Up Image Analysis

    Publication Year: 1984 , Page(s): 463 - 475
    Cited by:  Papers (16)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5693 KB)  

    This paper describes three hierarchical organizations of small processors for bottom-up image analysis:pyramids, interleaved pyramids, and pyramid trees. Progressively lower levels in the hierarchies process image windows of decreasing size. Bottom-up analysis is made feasible by transmitting up the levels quadrant borders and border-related information that captures quadrant interaction of intere... View full abstract»

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  • Picture Indexing and Abstraction Techniques for Pictorial Databases

    Publication Year: 1984 , Page(s): 475 - 484
    Cited by:  Papers (32)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3373 KB)  

    We present an approach for picture indexing and abstraction. Picture indexing facilitates information retrieval from a pictorial database consisting of picture objects and picture relations. To construct picture indexes, abstraction operations to perform picture object clustering and classification are formulated. To substantiate the abstraction operations, we also formalize syntactic abstraction ... View full abstract»

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  • Database Structure and Manipulation Capabilities of a Picture Database Management System (PICDMS)

    Publication Year: 1984 , Page(s): 484 - 492
    Cited by:  Papers (15)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5713 KB)  

    The database structure and data manipulation capabilities of a generalized PICture Database Management System (PICDMS) are presented. They are based on a dynamic, stacked-image, logical database structure that uses gridded, rather than topological, data representation. A prototype PICDMS has been designed and implemented. A commercial version is being used as a generator of image processing progra... View full abstract»

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  • Word-Meaning Selection in Multiprocess Language Understanding Programs

    Publication Year: 1984 , Page(s): 493 - 509
    Cited by:  Papers (1)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3595 KB)  

    An understander reading or listening to someone speak has to repeatedly solve the problem of word-meaning ambiguity, the selection of the intended meaning of a word from the set of its possible meanings. For example, the problem of pronominal reference can be considered as a choosing of the intended referent from the collection of entities which have already been mentioned or which can be inferred... View full abstract»

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  • Solving Satisfiability with Less Searching

    Publication Year: 1984 , Page(s): 510 - 513
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (929 KB)  

    A new technique, complement searching, is given for reducing the amount of searching required to solve satisfiability (constraint satisfaction) problems. Search trees for these problems often contain subtrees that have approximately the same shape. When this occurs, knowledge that the first subtree does not have a solution can be used to reduce the searching in the second subtree. Only the part of... View full abstract»

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  • Matching Three-Dimensional Objects Using Silhouettes

    Publication Year: 1984 , Page(s): 513 - 518
    Cited by:  Papers (13)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1115 KB)  

    A method for matching three-dimensional objects against a library of models from an observed sequence of silhouettes is presented in this correspondence. Based upon the observed silhouettes, the three-dimensional structure of the object is constructed and refined. The principal moments and three primary silhouettes are computed for the constructed three-dimensional objects to represent the aggrega... View full abstract»

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  • Multiple Resolution Texture Analysis and Classification

    Publication Year: 1984 , Page(s): 518 - 523
    Cited by:  Papers (166)  |  Patents (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4043 KB)  

    Textures are classified based on the change in their properties with changing resolution. The area of the gray level surface is measured at serveral resolutions. This area decreases at coarser resolutions since fine details that contribute to the area disappear. Fractal properties of the picture are computed from the rate of this decrease in area, and are used for texture comparison and classifica... View full abstract»

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  • Determining Motion Parameters for Scenes with Translation and Rotation

    Publication Year: 1984 , Page(s): 523 - 530
    Cited by:  Papers (21)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3365 KB)  

    A study of methods that determine the rotation parameters of a camera moving through synthetic and real scenes is conducted. Algorithms that combine ideas of Jain and Prazdny, using hypothesizeand-verify paradigm, are developed to find translational and rotational parameters. An argument is made for using hypothesized motion parameters rather than relaxation labeling to find correspondence. Some w... View full abstract»

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  • A Posteriori Estimation of Correlated Jointly Gaussian Mean Vectors

    Publication Year: 1984 , Page(s): 530 - 535
    Cited by:  Papers (17)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1317 KB)  

    This paper describes the use of maximum a posteriori probability (MAP) techniques to estimate the mean values of features used in statistical pattern classification problems, when these mean feature values from the various decision classes are jointly Gaussian random vectors that are correlated across the decision classes. A set of mathematical formalisms is proposed and used to derive closed-form... View full abstract»

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  • Estimation of Error Rates in Classification of Distorted Imagery

    Publication Year: 1984 , Page(s): 535 - 542
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1508 KB)  

    This correspondence considers the problem of matching image data to a large library of objects when the image is distorted. Two types of distortions are considered: blur-type, in which a transfer function is applied to Fourier components of the image, and scale-type, in which each Fourier component is mapped into another. The objects of the library are assumed to be normally distributed in an appr... View full abstract»

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  • Call for Papers

    Publication Year: 1984 , Page(s): 543
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  • Call for Papers

    Publication Year: 1984 , Page(s): 544
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  • List of Contributors

    Publication Year: 1984 , Page(s): nil2
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  • [Front cover]

    Publication Year: 1984 , Page(s): c2
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Aims & Scope

The IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI) is published monthly. Its editorial board strives to present most important research results in areas within TPAMI's scope.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
David A. Forsyth
University of Illinois
e-mail: daf@illinois.edu