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IEEE Transactions on Pattern Analysis and Machine Intelligence

Issue 2 • Date March 1985

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Displaying Results 1 - 15 of 15
  • [Front cover]

    Publication Year: 1985, Page(s): c1
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  • List of Contributors

    Publication Year: 1985, Page(s): nil1
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  • [Breaker page]

    Publication Year: 1985, Page(s): nil1
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  • Analysis of Accretion and Deletion at Boundaries in Dynamic Scenes

    Publication Year: 1985, Page(s):133 - 138
    Cited by:  Papers (35)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3352 KB)

    In dynamic scenes, the presence of object boundaries is often signaled by the appearance or disappearance of occluded surfaces over time. Such regions of surface accretion or deletion can be found using matching techniques similar to those used to determine optical flow in an image sequence. Regions in one frame that are not adequately matched by any region in previous frames correspond to accreti... View full abstract»

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  • Stereo by Intra- and Inter-Scanline Search Using Dynamic Programming

    Publication Year: 1985, Page(s):139 - 154
    Cited by:  Papers (479)  |  Patents (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9169 KB)

    This paper presents a stereo matching algorithm using the dynamic programming technique. The stereo matching problem, that is, obtaining a correspondence between right and left images, can be cast as a search problem. When a pair of stereo images is rectified, pairs of corresponding points can be searched for within the same scanlines. We call this search intra-scanline search. This intra-scanline... View full abstract»

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  • Dynamic Measurement of Computer Generated Image Segmentations

    Publication Year: 1985, Page(s):155 - 164
    Cited by:  Papers (160)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4819 KB)

    This paper introduces a general purpose performance measurement scheme for image segmentation algorithms. Performance parameters that function in real-time distinguish this method from previous approaches that depended on an a priori knowledge of the correct segmentation. A low level, context independent definition of segmentation is used to obtain a set of optimization criteria for evaluating per... View full abstract»

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  • Adaptive Noise Smoothing Filter for Images with Signal-Dependent Noise

    Publication Year: 1985, Page(s):165 - 177
    Cited by:  Papers (594)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9750 KB)

    In this paper, we consider the restoration of images with signal-dependent noise. The filter is noise smoothing and adapts to local changes in image statistics based on a nonstationary mean, nonstationary variance (NMNV) image model. For images degraded by a class of uncorrelated, signal-dependent noise without blur, the adaptive noise smoothing filter becomes a point processor and is similar to L... View full abstract»

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  • Transformation Between Continuous and Discrete Representations of Images: A Perceptual Approach

    Publication Year: 1985, Page(s):178 - 186
    Cited by:  Papers (13)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6602 KB)

    The transformation of image signals between the continuous domain of the real world and the discrete domain of modern data processing can have a significant effect on quality and efficiency. Analysis based on perceptual rather than mathematical considerations has been carried out. A series of experiments based on the analysis has shown that substantial improvement over usual techniques can be achi... View full abstract»

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  • Three-Dimensional Shape Description Using the Symmetric Axis Transform I: Theory

    Publication Year: 1985, Page(s):187 - 202
    Cited by:  Papers (40)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7550 KB)

    Blum's two-dimensional shape description method based on the symmetric axis transform (SAT) is generalized to three dimensions. The method uniquely decomposes an object into a collection of sub-objects each drawn from three separate, but not completely independent, primitive sets defined in the paper: width primitives, based on radius function properties; axis primitives, based on symmetric axis c... View full abstract»

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  • On the Straightness of Digital Arcs

    Publication Year: 1985, Page(s):203 - 215
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3196 KB)

    The straightness of a digital arc can simply be determined by the absence of unevenness in its chain code. The absence of unevenness is a necessary and sufficient condition for a digital arc to have the chord property, and it offers a much simpler alternative for examining whether a digital arc has the chord property or not. This condition is also the most comprehensive and precise expression of t... View full abstract»

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  • Geometric Algorithms for Digitized Pictures on a Mesh-Connected Computer

    Publication Year: 1985, Page(s):216 - 228
    Cited by:  Papers (37)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3218 KB)

    Although mesh-connected computers are used almost exclusively for low-level local image processing, they are also suitable for higher level image processing tasks. We illustrate this by presenting new optimal (in the O-notational sense) algorithms for computing several geometric properties of figures. For example, given a black/white picture stored one pixel per processing element in an n × n mes... View full abstract»

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  • Computing Geometric Properties of Images Represented by Linear Quadtrees

    Publication Year: 1985, Page(s):229 - 240
    Cited by:  Papers (25)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2663 KB)

    The region quadtree is a hierarchical data structure that finds use in applications such as image processing, computer graphics, pattern recognition, robotics, and cartography. In order to save space, a number of pointerless quadtree representations (termed linear quadtrees) have been proposed. One representation maintains the nodes in a list ordered according to a preorder traversal of the quadtr... View full abstract»

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  • On the Comparison of Conceptual Clustering and Numerical Taxonomy

    Publication Year: 1985, Page(s):241 - 244
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (843 KB)

    Conceptual clustering requires that clusters formed in the process shall be definable in terms of simple formulas in the predicate calculus. Michalski and Stepp [1] have argued that the results obtained with this method are clearly superior to traditional methods of numerical classification, so that an order of magnitude degradation in performance is acceptable. In this paper the results and compa... View full abstract»

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  • List of Contributors

    Publication Year: 1985, Page(s): nil2
    Request permission for commercial reuse | PDF file iconPDF (189 KB)
    Freely Available from IEEE
  • [Front cover]

    Publication Year: 1985, Page(s): c2
    Request permission for commercial reuse | PDF file iconPDF (158 KB)
    Freely Available from IEEE

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