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IEEE Transactions on Pattern Analysis and Machine Intelligence

Issue 5 • Date May 1992

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Displaying Results 1 - 8 of 8
  • Surface reconstruction using deformable models with interior and boundary constraints

    Publication Year: 1992, Page(s):572 - 579
    Cited by:  Papers (25)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1104 KB)

    The authors introduce a technique for 3D surface reconstruction using elastic deformable-models. The model used is an imaginary elastic grid, which is made of membranous, thin-plate-type material. The elastic grid can bent, twisted, compressed, and stretched into any desired 3D shape, which is specified by the shape constraints derived automatically from images of a real 3D object. Shape reconstru... View full abstract»

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  • A stereo vision technique using curve-segments and relaxation matching

    Publication Year: 1992, Page(s):566 - 572
    Cited by:  Papers (30)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    A multichannel feature-based stereo vision technique where curve segments are used as feature primitives in the matching process is described. The left image and the right image are filtered by using several Laplacian-of-Gaussian operators of different widths (channels). Curve segments are extracted by a tracking algorithm, and their centroids are obtained. At each channel, the generalized Hough t... View full abstract»

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  • Symbolic and geometric connectivity graph methods for route planning in digitized maps

    Publication Year: 1992, Page(s):549 - 565
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1864 KB)

    The results of research involving spatial reasoning within digitized maps are reported, focusing on techniques for 2D route planning in the presence of obstacles. Two alternative approaches to route planning are discussed, one involving heuristic symbolic processing and the other employing geometric calculations. Both techniques employ A* search over a connectivity graph. The geometric sy... View full abstract»

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  • A complete and extendable approach to visual recognition

    Publication Year: 1992, Page(s):534 - 548
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1516 KB)

    A framework for 3D object recognition is presented. Its flexibility and extensibility are accomplished through a uniform, parallel, and modular recognition architecture. Concurrent and stacked parameter transforms reconstruct a variety of features from the input scene. At each stage, constraint satisfaction networks collect and fuse the evidence obtained through the parameter transforms, ensuring ... View full abstract»

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  • Algebraic description of curve structure

    Publication Year: 1992, Page(s):516 - 533
    Cited by:  Papers (31)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1216 KB)

    The authors propose a compact and concise method of describing curves in terms of the quasi-topological features and the structure of each singular point. The quasi-topological features are the convexity, loop, and connectivity. The quasi-topological structure is analyzed in a hierarchical way, and algebraic structure is presented explicitly for each representation level. The lower-level represent... View full abstract»

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  • A comparative study of two search strategies for connected word recognition: dynamic programming and heuristic search

    Publication Year: 1992, Page(s):586 - 595
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (884 KB)

    A most successful approach to recognizing continuous speech is to model the recognition problem as one of finding an optimal path through a finite state network. A comparison of two search strategies for finding the optimal path, dynamic programming and heuristic search, is presented. The comparison is based on theoretical considerations and experimental tests on a digit string task View full abstract»

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  • Reinforcement of linear structure using parametrized relaxation labeling

    Publication Year: 1992, Page(s):502 - 515
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1208 KB)

    The problem of reinforcing local evidence of linear structure while suppressing unwanted information in noisy images is considered, using a modified form of relaxation labeling. The methodology is based on parametrizing a continuous set of orientation labels via a single vector and using a sigmoidal thresholding function to bias neighborhood influence and ensure convergence to a meaningful stable ... View full abstract»

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  • Adaptive determination of filter scales for edge detection

    Publication Year: 1992, Page(s):579 - 585
    Cited by:  Papers (54)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    The authors suggest a regularization method for determining scales for edge detection adaptively for each site in the image plane. Specifically, they extend the optimal filter concept of T. Poggio et al. (1984) and the scale-space concept of A. Witkin (1983) to an adaptive scale parameter. To avoid an ill-posed feature synthesis problem, the scheme automatically finds optimal scales adaptively for... 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