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Pattern Analysis and Machine Intelligence, IEEE Transactions on

Issue 3 • Date May 1987

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Displaying Results 1 - 16 of 16
  • [Front cover]

    Publication Year: 1987 , Page(s): c1
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  • List of Contributors

    Publication Year: 1987 , Page(s): nil1
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  • [Breaker page]

    Publication Year: 1987 , Page(s): nil1
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  • The Local Structure of Image Discontinuities in One Dimension

    Publication Year: 1987 , Page(s): 341 - 355
    Cited by:  Papers (38)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7443 KB)  

    The detailed structure of intensities in the local neighborhood of an edge can often indicate the nature of the physical event givinig rise to that edge. We argue that the limit, as we approach arbitrarily close to either side of an edge, of such image parameters as type of texture, texture gradient, color, appropriate directional derivatives of intensity, etc., is a key aspect of this structure. ... View full abstract»

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  • Motion Stereo Using Ego-Motion Complex Logarithmic Mapping

    Publication Year: 1987 , Page(s): 356 - 369
    Cited by:  Papers (31)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7618 KB)  

    Stereo information can be obtained using a moving camera. If a dynamic scene is acquired using a translating camera and the camera motion parameters are known, then the analysis of the scene may be facilitated by ego-motion complex logarithmic mapping (ECLM). It is shown in this paper that by using the complex logarithmic mapping (CLM) with respect to the focus of expansion, the depth of stationar... View full abstract»

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  • 3-D Motion Estimation, Understanding, and Prediction from Noisy Image Sequences

    Publication Year: 1987 , Page(s): 370 - 389
    Cited by:  Papers (65)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4126 KB)  

    This paper presents an approach to understanding general 3-D motion of a rigid body from image sequences. Based on dynamics, a locally constant angular momentum (LCAM) model is introduced. The model is local in the sense that it is applied to a limited number of image frames at a time. Specifically, the model constrains the motion, over a local frame subsequence, to be a superposition of precessio... View full abstract»

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  • Matching Perspective Views of a Polyhedron Using Circuits

    Publication Year: 1987 , Page(s): 390 - 400
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3493 KB)  

    We present a novel approach for finding corresponding points between two line drawings extracted from perspective views of a moving object whose surface is composed of planar polygons. In our approach, each circuit of the drawings is encoded with a boundary shape code which we call the RLCC code (run length code of convex and concave strings), then a clustering technique is used to obtain the matc... View full abstract»

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  • New Methods for Matching 3-D Objects with Single Perspective Views

    Publication Year: 1987 , Page(s): 401 - 412
    Cited by:  Papers (47)  |  Patents (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3566 KB)  

    In this paper we analyze the ability of a computer vision system to derive properties of the three-dimensional (3-D) physical world from viewing two-dimensional (2-D) images. We present a new approach which consists of a model-based interpretation of a single perspective image. Image linear features and linear feature sets are backprojected onto the 3-D space and geometric models are then used for... View full abstract»

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  • Iconic Indexing by 2-D Strings

    Publication Year: 1987 , Page(s): 413 - 428
    Cited by:  Papers (123)  |  Patents (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2781 KB)  

    In this paper, we describe a new way of representing a symbolic picture by a two-dimensional string. A picture query can also be specified as a 2-D string. The problem of pictorial information retrieval then becomes a problem of 2-D subsequence matching. We present algorithms for encoding a symbolic picture into its 2-D string representation, reconstructing a picture from its 2-D string representa... View full abstract»

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  • Polyhedra Recognition by Hypothesis Accumulation

    Publication Year: 1987 , Page(s): 429 - 438
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4546 KB)  

    A new method is presented for the recognition of polyhedra in range data. The method is based on a hypothesis accumulation scheme which allows parallel implementations. The different objects to be recognized are modeled by a set of local geometrical patterns. Local patterns of the same nature are extracted from the scene. For the recognition of an object, local scene and model patterns having the ... View full abstract»

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  • Forward/Backward Contour Tracing with Feedback

    Publication Year: 1987 , Page(s): 438 - 446
    Cited by:  Papers (12)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2546 KB)  

    This correspondence describes a contour extraction algorithm which can gradually improve its results until the extracted contours are closed. This is achieved by an architecture with a feedback path for local smoothing. The feedback path is activated only when one or more contours obtained are not closed in order to initiate smoothing in noisy areas of the image to remove local irregularities that... View full abstract»

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  • Edge-Detector Resolution Improvement by Image Interpolation

    Publication Year: 1987 , Page(s): 446 - 451
    Cited by:  Papers (7)  |  Patents (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3327 KB)  

    Most step-edge detectors are designed to detect locally straight edge-segments which can be isolated within the operator kernel. While it can easily be demonstrated that a cross-sectional support of at least 4 pixels is required for the unambiguous detection of a stepedge, edges which cannot be isolated within windows having this width can nevertheless be resolved. This is achieved by preceding th... View full abstract»

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  • A Robust Filtering Algorithm for Subpixel Reconstruction of Chain Coded Line Drawings

    Publication Year: 1987 , Page(s): 451 - 457
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1265 KB)  

    A robust algorithm is presented for smoothing and achieving subpixel accuracy in the reconstruction of chain coded line drawings. The algorithm does not remove sharp corners and does not need a priori knowledge of curvature statistics. A fast on-line implementation can be achieved using a table look-up. A simplified algorithm can be used for reconstructing digitized polygons. View full abstract»

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  • Stochastic Model Utilizing Spectral and Spatial Characteristics

    Publication Year: 1987 , Page(s): 457 - 461
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (957 KB)  

    In remote sensing, because of physical properties of targets, sensor pixels in spatial proximity to one another are class conditionally correlated. Our main objective is to exploit this spatial correlation. Therefore, a two-dimensional causal first order Markov model was used to extract the spatial and spectral information and, based upon it, new object classifiers with improved performance were d... View full abstract»

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  • Recursive Algorithms for Implementing Digital Image Filters

    Publication Year: 1987 , Page(s): 461 - 466
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1898 KB)  

    The B-spline functions are used to develop recursive algorithms for the efficient implementation of two-dimensional linear digital image filters. These filters may be spatially varying. The B-splines are used in a representation of the desired point spread function. We show that this leads to recursive algorithms and hardware implementations which are more efficient than either direct spatial doma... View full abstract»

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  • [Advertisement]

    Publication Year: 1987
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    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