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IEEE Transactions on Pattern Analysis and Machine Intelligence

Issue 7 • Date July 2004

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Displaying Results 1 - 18 of 18
  • [Front cover]

    Publication Year: 2004, Page(s): c1
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  • [Inside front cover]

    Publication Year: 2004, Page(s): c2
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  • Focus-of-attention from local color symmetries

    Publication Year: 2004, Page(s):817 - 830
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3231 KB) | HTML iconHTML

    In this paper, a continuous valued measure for local color symmetry is introduced. The new algorithm is an extension of the successful gray value-based symmetry map proposed by Reisfeld et al. The use of color facilitates the detection of focus points (FPs) on objects that are difficult to detect using gray-value contrast only. The detection of FPs is aimed at guiding the attention of an object re... View full abstract»

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  • Multiresolution histograms and their use for recognition

    Publication Year: 2004, Page(s):831 - 847
    Cited by:  Papers (102)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3958 KB) | HTML iconHTML

    The histogram of image intensities is used extensively for recognition and for retrieval of images and video from visual databases. A single image histogram, however, suffers from the inability to encode spatial image variation. An obvious way to extend this feature is to compute the histograms of multiple resolutions of an image to form a multiresolution histogram. The multiresolution histogram s... View full abstract»

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  • On pose recovery for generalized visual sensors

    Publication Year: 2004, Page(s):848 - 861
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2320 KB) | HTML iconHTML

    With the advances in imaging technologies for robot or machine vision, new imaging devices are being developed for robot navigation or image-based rendering. However, to satisfy some design criterion, such as image resolution or viewing ranges, these devices are not necessarily being designed to follow the perspective rule and, thus, the imaging rays may not pass through a common point. Such gener... View full abstract»

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  • Skin color-based video segmentation under time-varying illumination

    Publication Year: 2004, Page(s):862 - 877
    Cited by:  Papers (111)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4518 KB) | HTML iconHTML

    A novel approach for real-time skin segmentation in video sequences is described. The approach enables reliable skin segmentation despite wide variation in illumination during tracking. An explicit second order Markov model is used to predict evolution of the skin-color (HSV) histogram over time. Histograms are dynamically updated based on feedback from the current segmentation and predictions of ... View full abstract»

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  • Higher-order nonlinear priors for surface reconstruction

    Publication Year: 2004, Page(s):878 - 891
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1383 KB) | HTML iconHTML

    For surface reconstruction problems with noisy and incomplete range data, a Bayesian estimation approach can improve the overall quality of the surfaces. The Bayesian approach to surface estimation relies on a likelihood term, which ties the surface estimate to the input data, and the prior, which ensures surface smoothness or continuity. This paper introduces a new high-order, nonlinear prior for... View full abstract»

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  • Camera calibration with one-dimensional objects

    Publication Year: 2004, Page(s):892 - 899
    Cited by:  Papers (194)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (687 KB) | HTML iconHTML

    Camera calibration has been studied extensively in computer vision and photogrammetry and the proposed techniques in the literature include those using 3D apparatus (two or three planes orthogonal to each other or a plane undergoing a pure translation, etc.), 2D objects (planar patterns undergoing unknown motions), and 0D features (self-calibration using unknown scene points). Yet, the paper propo... View full abstract»

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  • Fast branch & bound algorithms for optimal feature selection

    Publication Year: 2004, Page(s):900 - 912
    Cited by:  Papers (107)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1919 KB) | HTML iconHTML

    A novel search principle for optimal feature subset selection using the branch & bound method is introduced. Thanks to a simple mechanism for predicting criterion values, a considerable amount of time can be saved by avoiding many slow criterion evaluations. We propose two implementations of the proposed prediction mechanism that are suitable for use with nonrecursive and recursive criterion forms... View full abstract»

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  • Spectral filter optimization for the recovery of parameters which describe human skin

    Publication Year: 2004, Page(s):913 - 922
    Cited by:  Papers (15)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (707 KB) | HTML iconHTML

    The paper presents a method for finding spectral filters that minimize the error associated with histological parameters characterizing normal skin tissue. These parameters can be recovered from digital images of the skin using a physics-based model of skin coloration. The relationship between the image data and histological parameter values is defined as a mapping function from the image space to... View full abstract»

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  • A new convexity measure for polygons

    Publication Year: 2004, Page(s):923 - 934
    Cited by:  Papers (43)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1241 KB) | HTML iconHTML

    Convexity estimators are commonly used in the analysis of shape. In this paper, we define and evaluate a new convexity measure for planar regions bounded by polygons. The new convexity measure can be understood as a "boundary-based" measure and in accordance with this it is more sensitive to measured boundary defects than the so called "area-based" convexity measures. When compared with the convex... View full abstract»

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  • A new way to detect arrows in line drawings

    Publication Year: 2004, Page(s):935 - 941
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1123 KB) | HTML iconHTML

    A new way of detecting arrows in line drawings is proposed. We provide a set of criteria which are aggregated using the Choquet integral. These criteria are defined from the geometric properties of an arrow. Experimental results on two kinds of line-drawing documents show the interest of our approach. View full abstract»

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  • Multiview panoramic cameras using mirror pyramids

    Publication Year: 2004, Page(s):941 - 946
    Cited by:  Papers (22)  |  Patents (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (395 KB) | HTML iconHTML

    A mirror pyramid consists of a set of planar mirror faces arranged around an axis of symmetry and inclined to form a pyramid. By strategically positioning a number of conventional cameras around a mirror pyramid, the viewpoints of the cameras' mirror images can be located at a single point within the pyramid and their optical axes pointed in different directions to effectively form a virtual camer... View full abstract»

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  • Contrast definition for optical coherent polarimetric images

    Publication Year: 2004, Page(s):947 - 951
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB) | HTML iconHTML

    We consider polarimetric images formed with coherent waves, such as in laser-illuminated imagery or synthetic aperture radar. A definition of the contrast between regions with different polarimetric properties in such images is proposed, and it is shown that the performances of maximum likelihood-based detection and segmentation algorithms are bijective functions of this contrast parameter. This m... View full abstract»

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  • Gaussian MRF rotation-invariant features for image classification

    Publication Year: 2004, Page(s):951 - 955
    Cited by:  Papers (65)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (629 KB) | HTML iconHTML

    Features based on Markov random field (MRF) models are sensitive to texture rotation. This paper develops an anisotropic circular Gaussian MRF (ACGMRF) model for retrieving rotation-invariant texture features. To overcome the singularity problem of the least squares estimate method, an approximate least squares estimate method is designed and implemented. Rotation-invariant features are obtained f... View full abstract»

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  • Eye gaze correction with stereovision for video-teleconferencing

    Publication Year: 2004, Page(s):956 - 960
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (497 KB) | HTML iconHTML

    The lack of eye contact in desktop video teleconferencing substantially reduces the effectiveness of video contents. While expensive and bulky hardware is available on the market to correct eye gaze, researchers have been trying to provide a practical software-based solution to bring video-teleconferencing one step closer to the mass market. This paper presents a novel approach: based on stereo an... View full abstract»

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  • TPAMI Information for authors

    Publication Year: 2004, Page(s): c3
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  • [Back cover]

    Publication Year: 2004, Page(s): c4
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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