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IEEE Transactions on Image Processing

Issue 9 • Sept. 2003

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Displaying Results 1 - 14 of 14
  • Comments on "A translation- and scale-invariant adaptive wavelet transform"

    Publication Year: 2003, Page(s):1091 - 1093
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB) | HTML iconHTML

    H. Xiong et al. (see ibid., vol.9, p.2100-8, 2000) presented a translationand scale-invariant adaptive wavelet transform. We show that their renormalized signal (pre-wavelet transform) is already translation- and scale-invariant. Thus, it is not just invariant under the wavelet transform. We give a necessary and sufficient condition for renormalized signals to be affine transform invariant. View full abstract»

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  • One-dimensional dense disparity estimation for three-dimensional reconstruction

    Publication Year: 2003, Page(s):1107 - 1119
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2068 KB) | HTML iconHTML

    We present a method for fully automatic three-dimensional (3D) reconstruction from a pair of weakly calibrated images in order to deal with the modeling of complex rigid scenes. A two-dimensional (2D) triangular mesh model of the scene is calculated using a two-step algorithm mixing sparse matching and dense motion estimation approaches. The 2D mesh is iteratively refined to fit any arbitrary 3D s... View full abstract»

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  • Symmetric region growing

    Publication Year: 2003, Page(s):1007 - 1015
    Cited by:  Papers (64)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (687 KB) | HTML iconHTML

    Of the many proposed image segmentation methods, region growing has been one of the most popular. Research on region growing, however, has focused primarily on the design of feature measures and on growing and merging criteria. Most of these methods have an inherent dependence on the order in which the points and regions are examined. This weakness implies that a desired segmented result is sensit... View full abstract»

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  • Multichannel blind iterative image restoration

    Publication Year: 2003, Page(s):1094 - 1106
    Cited by:  Papers (91)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1575 KB) | HTML iconHTML

    Blind image deconvolution is required in many applications of microscopy imaging, remote sensing, and astronomical imaging. Unfortunately, in a single-channel framework, serious conceptual and numerical problems are often encountered. An eigenvector-based method (EVAM) has been proposed for a multichannel framework which determines perfectly convolution masks in a noise-free environment if channel... View full abstract»

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  • The hierarchical structure of images

    Publication Year: 2003, Page(s):1067 - 1079
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (857 KB) | HTML iconHTML

    Using a Gaussian scale space, one can use the extra dimension, viz. scale, for investigation of "built-in" properties of the image in scale space. We show that one of such induced properties is the nesting of special iso-intensity manifolds, which yield an implicitly present hierarchy of the critical points and regions of their influence, in the original image. Its very nature allows one not only ... View full abstract»

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  • Automatic gait recognition based on statistical shape analysis

    Publication Year: 2003, Page(s):1120 - 1131
    Cited by:  Papers (121)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (954 KB) | HTML iconHTML

    Gait recognition has recently gained significant attention from computer vision researchers. This interest is strongly motivated by the need for automated person identification systems at a distance in visual surveillance and monitoring applications. The paper proposes a simple and efficient automatic gait recognition algorithm using statistical shape analysis. For each image sequence, an improved... View full abstract»

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  • Method of paired transforms for reconstruction of images from projections: discrete model

    Publication Year: 2003, Page(s):985 - 994
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1082 KB) | HTML iconHTML

    An effective method of discrete image reconstruction from its projections is introduced. The method is based on the vector and paired representations of the two-dimensional (2D) image with respect to the 2D discrete Fourier transform. Such representations yield algorithms for image reconstruction by a minimal number of attenuation measurements in certain projections. The proposed algorithms are de... View full abstract»

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  • L/M-fold image resizing in block-DCT domain using symmetric convolution

    Publication Year: 2003, Page(s):1016 - 1034
    Cited by:  Papers (59)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4059 KB) | HTML iconHTML

    Image resizing is to change an image size by upsampling or downsampling of a digital image. Most still images and video frames on digital media are given in a compressed domain. Image resizing of a compressed image can be performed in the spatial domain via decompression and recompression. In general, resizing of a compressed image in a compressed domain is much faster than that in the spatial dom... View full abstract»

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  • Mathematical properties of the JPEG2000 wavelet filters

    Publication Year: 2003, Page(s):1080 - 1090
    Cited by:  Papers (78)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (638 KB) | HTML iconHTML

    The LeGall 5/3 and Daubechies 9/7 filters have risen to special prominence because they were selected for inclusion in the JPEG2000 standard. We determine their key mathematical features: Riesz bounds, order of approximation, and regularity (Holder and Sobolev). We give approximation theoretic quantities such as the asymptotic constant for the L2 error and the angle between the analysis... View full abstract»

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  • Down-scaling for better transform compression

    Publication Year: 2003, Page(s):1132 - 1144
    Cited by:  Papers (68)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1257 KB) | HTML iconHTML

    The most popular lossy image compression method used on the Internet is the JPEG standard. JPEG's good compression performance and low computational and memory complexity make it an attractive method for natural image compression. Nevertheless, as we go to low bit rates that imply lower quality, JPEG introduces disturbing artifacts. It is known that, at low bit rates, a down-sampled image, when JP... View full abstract»

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  • Minimum description length synthetic aperture radar image segmentation

    Publication Year: 2003, Page(s):995 - 1006
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1693 KB) | HTML iconHTML

    We present a new minimum description length (MDL) approach based on a deformable partition - a polygonal grid - for automatic segmentation of a speckled image composed of several homogeneous regions. The image segmentation thus consists in the estimation of the polygonal grid, or, more precisely, its number of regions, its number of nodes and the location of its nodes. These estimations are perfor... View full abstract»

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  • Synthetic aperture inversion for arbitrary flight paths and nonflat topography

    Publication Year: 2003, Page(s):1035 - 1043
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (989 KB) | HTML iconHTML

    The paper considers synthetic aperture radar (SAR) and other synthetic aperture imaging systems in which a backscattered wave is measured from positions along an arbitrary (known) flight path. The received backscattered signals are used to produce an image of the terrain. We assume a single-scattering model for the radar data, and we assume that the ground topography is known but not necessarily f... View full abstract»

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  • A VQ-based blind image restoration algorithm

    Publication Year: 2003, Page(s):1044 - 1053
    Cited by:  Papers (38)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1725 KB) | HTML iconHTML

    Learning-based algorithms for image restoration and blind image restoration are proposed. Such algorithms deviate from the traditional approaches in this area, by utilizing priors that are learned from similar images. Original images and their degraded versions by the known degradation operator (restoration problem) are utilized for designing the VQ codebooks. The codevectors are designed using th... View full abstract»

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  • On designing an isotropic fiducial mark

    Publication Year: 2003, Page(s):1054 - 1066
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1055 KB) | HTML iconHTML

    The Crame´r-Rao lower bound (CRLB) of image registration error using an isotropic fiducial mark is derived. The derived CRLB is a function of the intensity profile of the fiducial mark. Following the development of the CRLB, a new method for designing an isotropic fiducial mark, suitable for digital image registration, is presented. A parameterization method of the fiducial intensity profile... 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.

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Meet Our Editors

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