IEEE Transactions on Image Processing

Issue 12 • Dec. 1999

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Displaying Results 1 - 20 of 20
  • Author index

    Publication Year: 1999, Page(s):1 - 6
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  • Subject index

    Publication Year: 1999, Page(s):6 - 23
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  • Adaptive target detection in foliage-penetrating SAR images using alpha-stable models

    Publication Year: 1999, Page(s):1823 - 1831
    Cited by:  Papers (40)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (820 KB)

    Detecting targets occluded by foliage in foliage-penetrating (FOPEN) ultra-wideband synthetic aperture radar (UWB SAR) images is an important and challenging problem. Given the different nature of target returns in foliage and nonfoliage regions and very low signal-to-clutter ratio in UWB imagery, conventional detection algorithms fail to yield robust target detection results. A new target detecti... View full abstract»

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  • An efficient computation-constrained block-based motion estimation algorithm for low bit rate video coding

    Publication Year: 1999, Page(s):1816 - 1823
    Cited by:  Papers (30)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    We present an efficient computation constrained block-based motion vector estimation algorithm for low bit rate video coding that yields good tradeoffs between motion estimation distortion and number of computations. A reliable predictor determines the search origin, localizing the search process. An efficient search pattern exploits structural constraints within the motion field. A flexible cost ... View full abstract»

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  • Fast embedded compression for video

    Publication Year: 1999, Page(s):1811 - 1816
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    An embedded coding algorithm creates a compressed bit stream that can be truncated to produce reduced resolution versions of the original image. Unfortunately, such algorithms are relatively slow. We introduce two new concepts in an effort to address this problem: adaptive embedding and cache-based zerotree processing View full abstract»

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  • Lp norm design of stack filters

    Publication Year: 1999, Page(s):1730 - 1743
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2256 KB)

    Addresses the problem of designing optimal stack filters by employing an Lp norm of the error between the desired signal and the estimated one. It is shown that the Lp norm can be expressed as a linear function of the decision errors at the binary levels of the filter. Thus, an Lp-optimal stack filter can be determined as the solution of a linear program. The conve... View full abstract»

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  • Smoothness-constrained quantization for wavelet image compression

    Publication Year: 1999, Page(s):1807 - 1811
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Uniform quantization of wavelet coefficients introduces perceptually disturbing artifacts by decreasing the visual smoothness. In this paper, the local Holder regularity is used to quantify these changes in visual smoothness. A modified uniform quantization scheme that constrains local regularity reduction is proposed. The quantizer modification is applicable to any uniform quantization scheme and... View full abstract»

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  • A review of the fractal image coding literature

    Publication Year: 1999, Page(s):1716 - 1729
    Cited by:  Papers (134)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    Fractal image compression is a technique based on the representation of an image by a contractive transform, on the space of images, for which the fixed point is close to the original image. This broad principle encompasses a very wide variety of coding schemes, many of which have been explored in the rapidly growing body of published research. While certain theoretical aspects of this representat... View full abstract»

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  • Color device calibration: a mathematical formulation

    Publication Year: 1999, Page(s):1796 - 1806
    Cited by:  Papers (49)  |  Patents (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The mathematical formulation of calibrating color image reproduction and recording devices is presented. This formulation provides a foundation for future research in areas of characterization of devices and display of color images. The importance of calibration is demonstrated by real examples. The procedure outlined in this paper should become standard for displaying color images for the image p... View full abstract»

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  • Image subband coding using context-based classification and adaptive quantization

    Publication Year: 1999, Page(s):1702 - 1715
    Cited by:  Papers (46)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    Adaptive compression methods have been a key component of many proposed subband (or wavelet) image coding techniques. This paper deals with a particular type of adaptive subband image coding where we focus on the image coder's ability to adjust itself “on the fly” to the spatially varying statistical nature of image contents. This backward adaptation is distinguished from more frequent... View full abstract»

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  • A statistical theory for optimal detection of moving objects in variable corruptive noise

    Publication Year: 1999, Page(s):1772 - 1787
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1792 KB)

    In this paper, the classical analysis of variance is extended to three-dimensional (3-D) Graeco-Latin squares design for multiframe processing applications. Conspicuous physical features, including edges, lines, and corners, can then be expressed as contrast functions. This enables the development of a new methodology for detecting moving objects embedded in noise. The new detector exploits spatia... View full abstract»

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  • Simultaneous motion estimation and filtering of image sequences

    Publication Year: 1999, Page(s):1788 - 1795
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    We present an algorithm to simultaneously estimate multiple-frame motions and filter image sequences. The relative motion dk(x) between the reference frame s(x) and the kth frame s(x-dk(x)) in the presence of additive white Gaussian noise (AWGN) is estimated using the maximum-likelihood (ML) principle. The reference frame is also filtered in the linear minimum mean square err... View full abstract»

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  • Image compression via joint statistical characterization in the wavelet domain

    Publication Year: 1999, Page(s):1688 - 1701
    Cited by:  Papers (252)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1620 KB)

    We develop a probability model for natural images, based on empirical observation of their statistics in the wavelet transform domain. Pairs of wavelet coefficients, corresponding to basis functions at adjacent spatial locations, orientations, and scales, are found to be non-Gaussian in both their marginal and joint statistical properties. Specifically, their marginals are heavy-tailed, and althou... View full abstract»

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  • A moment-based approach for deskewing rotationally symmetric shapes

    Publication Year: 1999, Page(s):1831 - 1834
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (156 KB)

    The covariance matrix of a pattern is composed by its second order central moments. For a rotationally symmetric shape, its covariance matrix is a scalar identity matrix. In this work, we apply this property to restore the skewed shape of rotational symmetry. The relations between the skew transformation matrix and the covariance matrices of original and skewed shapes are derived. By computing the... View full abstract»

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  • Object classification in 3-D images using alpha-trimmed mean radial basis function network

    Publication Year: 1999, Page(s):1744 - 1756
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (964 KB)

    We propose a pattern classification based approach for simultaneous three-dimensional (3-D) object modeling and segmentation in image volumes. The 3-D objects are described as a set of overlapping ellipsoids. The segmentation relies on the geometrical model and graylevel statistics. The characteristic parameters of the ellipsoids and of the graylevel statistics are embedded in a radial basis funct... View full abstract»

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  • Arithmetic coding with dual symbol sets and its performance analysis

    Publication Year: 1999, Page(s):1667 - 1676
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    We propose a novel adaptive arithmetic coding method that uses dual symbol sets: a primary symbol set that contains all the symbols that are likely to occur in the near future and a secondary symbol set that contains all other symbols. The simplest implementation of our method assumes that symbols that have appeared in the previously are highly likely to appear in the near future. It therefore fil... View full abstract»

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  • Tri-state median filter for image denoising

    Publication Year: 1999, Page(s):1834 - 1838
    Cited by:  Papers (268)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    A novel nonlinear filter, called tri-state median (TSM) filter, is proposed for preserving image details while effectively suppressing impulse noise. We incorporate the standard median (SM) filter and the center weighted median (CWM) filter into a noise detection framework to determine whether a pixel is corrupted, before applying filtering unconditionally. Extensive simulation results demonstrate... View full abstract»

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  • Image representations using multiscale differential operators

    Publication Year: 1999, Page(s):1757 - 1771
    Cited by:  Papers (35)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (964 KB)

    Differential operators have been widely used for multiscale geometric descriptions of images. The efficient computation of these differential operators is always desirable. Moreover, it has not been clear whether such representations are invertible. For certain applications, it is usually required that such representations should be invertible so that one can facilitate the processing of informati... View full abstract»

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  • Universal trellis coded quantization

    Publication Year: 1999, Page(s):1677 - 1687
    Cited by:  Papers (45)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2408 KB)

    A new form of trellis coded quantization based on uniform quantization thresholds and “on-the-fly” quantizer training is presented. The universal trellis coded quantization (UTCQ) technique requires neither stored codebooks nor a computationally intense codebook design algorithm. Its performance is comparable with that of fully optimized entropy-constrained trellis coded quantization (... View full abstract»

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  • Real-time restoration of images degraded by uniform motion blur in foveal active vision systems

    Publication Year: 1999, Page(s):1838 - 1842
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    Foveated, log-polar, or space-variant image architectures provide a high resolution and wide field workspace, while providing a small pixel computation load. These characteristics are ideal for mobile robotic and active vision applications, but have been little used due to the general lack of image processing tools that are applicable to the log-polar coordinate system. Recently, we have described... View full abstract»

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Aims & Scope

IEEE Transactions on Image Processing focuses on signal-processing aspects of image processing, imaging systems, and image scanning, display, and printing.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Scott Acton
University of Virginia
Charlottesville, VA, USA
E-mail: acton@virginia.edu 
Phone: +1 434-982-2003