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IEEE Transactions on Pattern Analysis and Machine Intelligence

Issue 7 • Jul 1989

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Displaying Results 1 - 11 of 11
  • A unified approach to the change of resolution: space and gray-level

    Publication Year: 1989, Page(s):739 - 742
    Cited by:  Papers (36)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    It is shown that by defining a suitable measure for the comparison of images, changes in resolution can be treated with the same tool as changes in color resolution. A gray-tone image, for example, can be compared to a half-tone image having only two colors (black and white), but of higher spatial resolution. A graph-theoretical definition of the basic measure used is introduced. This is followed ... View full abstract»

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  • A theory for multiresolution signal decomposition: the wavelet representation

    Publication Year: 1989, Page(s):674 - 693
    Cited by:  Papers (9311)  |  Patents (220)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1524 KB)

    Multiresolution representations are effective for analyzing the information content of images. The properties of the operator which approximates a signal at a given resolution were studied. It is shown that the difference of information between the approximation of a signal at the resolutions 2j+1 and 2j (where j is an integer) can be extracted by decomposing this signal on a... View full abstract»

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  • Cepstral filtering on a columnar image architecture: a fast algorithm for binocular stereo segmentation

    Publication Year: 1989, Page(s):759 - 767
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (972 KB)

    Many primate visual cortex architectures have a prominent feature responsible for the mixing of left and right eye visual data: ocular dominance columns represent thin (about 5-10 minutes of arc) strips of alternating left and right eye input to the brain. It is shown that such an architecture, when operated upon with a cepstral filter, provides a strong cue for binocular stereopsis. Specifically,... View full abstract»

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  • A data-driven intermediate level feature extraction algorithm

    Publication Year: 1989, Page(s):749 - 758
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (892 KB)

    An algorithm is presented that is based on the regression updating theory for fitting linearly parameterizable curves without prior classification of edge data. An initial estimate of a hypothesized curve is first obtained by a statistical windowing technique. A search region is determined and iteratively grown. Edge points in the search region are tested for their goodness-of-fit to the previous ... View full abstract»

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  • A multiscanning approach based on morphological filtering

    Publication Year: 1989, Page(s):694 - 700
    Cited by:  Papers (76)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    It is argued that the mathematical morphology method seems to be more reasonable and powerful in studying certain multiscaling vision problems than the approach that uses derivatives of Gaussian-shaped filters of different sizes. To show the validity of this method, the authors concentrated on an application that involves forming scale-space image of a 2-D shape using morphological opening filteri... View full abstract»

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  • A new technique to extract range information from stereo images

    Publication Year: 1989, Page(s):768 - 773
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    Results are described for an algorithm that automatically registers two stereo images. An exact area registration process which automatically removes all residual distortion due to the geometry of the stereo imaging system is demonstrated. This process allows the match judgement to be based upon an analysis of the residual differences of structure and intensity existing after all differences due t... View full abstract»

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  • Pattern spectrum and multiscale shape representation

    Publication Year: 1989, Page(s):701 - 716
    Cited by:  Papers (317)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1376 KB)

    The results of a study on multiscale shape description, smoothing and representation are reported. Multiscale nonlinear smoothing filters are first developed, using morphological opening and closings. G. Matheron (1975) used openings and closings to obtain probabilistic size distributions of Euclidean-space sets (continuous binary images). These distributions are used to develop a concept of patte... View full abstract»

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  • Unsupervised optimal fuzzy clustering

    Publication Year: 1989, Page(s):773 - 780
    Cited by:  Papers (417)  |  Patents (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    This study reports on a method for carrying out fuzzy classification without a priori assumptions on the number of clusters in the data set. Assessment of cluster validity is based on performance measures using hypervolume and density criteria. An algorithm is derived from a combination of the fuzzy K-means algorithm and fuzzy maximum-likelihood estimation. The unsupervised fuzzy partitio... View full abstract»

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  • Multiresolution feature extraction and selection for texture segmentation

    Publication Year: 1989, Page(s):717 - 728
    Cited by:  Papers (99)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    An approach is described for unsupervised segmentation of textured images. Local texture properties are extracted using local linear transforms that have been optimized for maximal texture discrimination. Local statistics (texture energy measures) are estimated at the output of an equivalent filter bank by means of a nonlinear transformation (absolute value) followed by an iterative Gaussian smoot... View full abstract»

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  • Image representation by sign information

    Publication Year: 1989, Page(s):729 - 738
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1112 KB)

    Image representation by sign data in its most general context is considered for the case when f is a two-dimensional signal. The authors study conditions under which f is determined by its sign or, in other words, by its quantization to 1 bit of information. This study is carried out in two different directions. First, theoretical results are presented that set an algebraic condi... View full abstract»

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  • Quadtree-structured linear prediction models for image sequence processing

    Publication Year: 1989, Page(s):742 - 748
    Cited by:  Papers (12)  |  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    A summary is presented of a study on two-dimensional linear prediction models for image sequence processing and its application to change detection and scene coding. The study focused on two-dimensional joint process modeling of interframe relationships, the derivation of computationally efficient matching algorithms, and the implementation of a block-adaptive interframe predictor for use in inter... 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