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IEEE Transactions on Pattern Analysis and Machine Intelligence

Issue 10 • Date Oct. 1992

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Displaying Results 1 - 8 of 8
  • Comments on "Parallel algorithms for hierarchical clustering and cluster validity

    Publication Year: 1992, Page(s):1056 - 1057
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    In the above-titled paper (ibid., vol.12, no.11, p.1088-92, Nov. 1990), parallel implementations of hierarchical clustering algorithms that achieve O(n/sup 2/) computational time complexity and thereby improve on the baseline of sequential implementations are described. The latter are stated to be O(n/sup 3/), with the exception of the single-link method. The commenter points out that state-of-the... View full abstract»

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  • Statistical analysis of inherent ambiguities in recovering 3-D motion from a noisy flow field

    Publication Year: 1992, Page(s):995 - 1013
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1368 KB)

    The inherent ambiguities in recovering 3-D motion information from a single optical flow field are studied using a statistical model. The ambiguities are quantified using the Cramer-Rao lower bound. As a special case, the performance bound for the motion of 3-D rigid planar surfaces is studied in detail. The dependence of the bound on factors such as the underlying motion, surface position, surfac... View full abstract»

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  • Efficient data structures for model-based 3-D object recognition and localization from range images

    Publication Year: 1992, Page(s):1035 - 1045
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1248 KB)

    An effective method of surface characterization of 3D objects using surface curvature properties and an efficient approach to recognizing and localizing multiple 3D free-form objects (free-form object recognition and localization) are presented. The approach is surface based and is therefore not sensitive to noise and occlusion, forms hypothesis by local analysis of surface shapes, does not depend... View full abstract»

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  • A partially supervised learning algorithm for linearly separable systems

    Publication Year: 1992, Page(s):1052 - 1056
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    An important aspect of human learning is the ability to select effective samples to learn and utilize the experience to infer the outcomes of new events. This type of learning is characterized as partially supervised learning. A learning algorithm of this type is suggested for linearly separable systems. The algorithm selects a subset S from a finite set X of linearly separable v... View full abstract»

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  • 3-D surface description from binocular stereo

    Publication Year: 1992, Page(s):981 - 994
    Cited by:  Papers (55)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1852 KB)

    A stereo vision system that attempts to achieve robustness with respect to scene characteristics, from textured outdoor scenes to environments composed of highly regular man-made objects is presented. It integrates area-based and feature-based primitives. The area-based processing provides a dense disparity map, and the feature-based processing provides an accurate location of discontinuities. An ... View full abstract»

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  • Parallel architectures and algorithms for image component labeling

    Publication Year: 1992, Page(s):1014 - 1034
    Cited by:  Papers (31)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2364 KB)

    A survey and a characterization of the various parallel algorithms and architectures developed for the problem of labeling digitized images over the last two decades are presented. It is shown that four basic parallel techniques underly the various parallel algorithms for this problem. However, because most of these techniques have been developed at a theoretical level, it is still not clear which... View full abstract»

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  • Camera calibration with distortion models and accuracy evaluation

    Publication Year: 1992, Page(s):965 - 980
    Cited by:  Papers (333)  |  Patents (49)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1484 KB)

    A camera model that accounts for major sources of camera distortion, namely, radial, decentering, and thin prism distortions is presented. The proposed calibration procedure consists of two steps: (1) the calibration parameters are estimated using a closed-form solution based on a distribution-free camera model; and (2) the parameters estimated in the first step are improved iteratively through a ... View full abstract»

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  • Surface shape reconstruction of a nonrigid transport object using refraction and motion

    Publication Year: 1992, Page(s):1045 - 1052
    Cited by:  Papers (29)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    The appearance of a pattern behind a transparent, moving object is distorted by refraction at the moving object's surface. An algorithm for reconstructing the surface shape of a nonrigid transparent object, such as water, from the apparent motion of the observed pattern is described. This algorithm is based on the optical and statistical analysis of the distortions. It consists of four steps: extr... View full abstract»

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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.

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Meet Our Editors

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