By Topic

Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)

10-13 Sept. 2000

Go

Filter Results

Displaying Results 1 - 25 of 253
  • Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)

    Publication Year: 2000
    Request permission for commercial reuse | PDF file iconPDF (3332 KB)
    Freely Available from IEEE
  • SPOT satellite data analysis for bathymetric mapping

    Publication Year: 2000, Page(s):464 - 467 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (439 KB)

    This paper presents the determination of bathymetric maps from the analysis of multispectral SPOT images. To this end, we have developed a multispectral segmentation method based on a hierarchical Markovian modeling including the unsupervised estimation of the model parameters. In each segmented region, an adaptive bathymetric inversion model is then applied in order to recover the water depth (ma... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Author index

    Publication Year: 2000, Page(s):A_1 - A_18
    Request permission for commercial reuse | PDF file iconPDF (1218 KB)
    Freely Available from IEEE
  • Mammographic image segmentation using a tissue-mixture model and Markov random fields

    Publication Year: 2000, Page(s):416 - 419 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The introduction of imaging and anatomical models can be used to develop robust algorithms for mammographic image analysis. The key to the proposed technique is to recognise that at any site in the observed image, a combination of tissues is present. The relationship between the different tissues is represented by a statistical model which is dictated by the imaging system. Markov random fields ar... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust spot fitting for genetic spot array images

    Publication Year: 2000, Page(s):412 - 415 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    Addresses the problem of reliably fitting parametric and semi-parametric models to high density spot array images obtained in gene expression experiments. The goal is to measure the amount of genetic material at specific spot locations. Many spots can be modelled accurately by a Gaussian shape. In order to deal with highly overlapping spots the authors use robust M-estimators. When the parametric ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 3D model enhanced face recognition

    Publication Year: 2000, Page(s):50 - 53 vol.3
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    A personal identification system based on the analysis of frontal or profile images of the face has applications in human-computer interfaces, access control, surveillance etc. Among many practical face recognition schemes, image based approaches are possibly the most promising ones. However, the 2D images/patterns of 3D face objects can change dramatically due to lighting and viewing variations. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A novel multiresolution color image segmentation technique and its application to dermatoscopic image segmentation

    Publication Year: 2000, Page(s):408 - 411 vol.3
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    Describes a novel technique for color image segmentation. This technique includes three components: a color space transformation; MRF-EM segmentation; and a multiresolution implementation termed “narrowband”. The color space transformation, from RGB to LUV, contributes to a perceptually reasonable segmentation result. The MRF-EM algorithm permits unsupervised segmentation and enforces ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Segmenting skin lesions with partial differential equations based image processing algorithms

    Publication Year: 2000, Page(s):404 - 407 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A PDE-based system for detecting the boundary of skin lesions in digital clinical skin images is presented. The image is first pre-processed via contrast-enhancement and anisotropic diffusion. If the lesion is covered by hairs, a PDE-based continuous morphological filter that removes them is used as an additional pre-processing step. Following these steps, the skin lesion is segmented either by th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two-stage texture segmentation using complementary features

    Publication Year: 2000, Page(s):564 - 567 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    A two-stage texture segmentation approach is proposed where an initial segmentation map is obtained through unsupervised clustering of multiresolution simultaneous autoregressive (MRSAR) features and is followed by self-supervised or bootstrapped classification of wavelet features. The self-supervised stage is based on a segmentation confidence map, where the regions of “high confidence&rdqu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An error resilient coding technique for JPEG2000

    Publication Year: 2000, Page(s):364 - 367 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    We introduce a mixed fixed-length coding (FLC) and variable-length coding (VLC) technique to improve the error resilience of the upcoming JPEG2000 image coding standard. Our proposed method operates on quantized subband coefficients, and produces a bit-stream with both FLC and VLC codewords. Higher error resilience is achieved by eliminating the error propagation within FLC sections, which in gene... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Isotropic versus anisotropic encoding of visual information

    Publication Year: 2000, Page(s):905 - 908 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    Loss of information in images undergoing fine-to-coarse image transformations is analyzed by using an approach based on the theory of irreversible transformations. The method is applied to isotropic and anisotropic diffusion and an algorithm based on entropy variation is presented that extracts relevant features of the image and provides a method to discriminate between smooth, textured and edge-t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Look up table (LUT) method for image halftoning

    Publication Year: 2000, Page(s):993 - 996 vol.3
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    We have previously applied the look up table (LUT) method for inverse halftoning. We also proposed a tree-structure LUT inverse halftoning in order to reduce the memory requirements of the LUT method. We introduce the LUT based halftoning method. Pixels from a causal neighborhood and the contone value of the current pixel are included in the LUT. The LUT halftoning requires no arithmetic operation... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Stripe-based SPIHT lossy compression of volumetric medical images for low memory usage and uniform reconstruction quality

    Publication Year: 2000, Page(s):652 - 655 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    This paper presents a low memory implementation of efficient lossy volumetric medical image compression using the set partitioning in hierarchical trees (SPIHT) algorithm. The coding units in this three-dimensional wavelet transform and compression method are short sequences of horizontal stripes cut from the sequence of slices in the volumetric image. As the compression degree increases, the boun... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A visual tracking system for sports video annotation in unconstrained environments

    Publication Year: 2000, Page(s):242 - 245 vol.3
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    A visual tracking system is presented in which a combination of techniques is used to obtain motion features of objects from a video sequence. Further processing of the motion features gives the spatio-temporal trajectories of the objects, that can be used as cues for annotation. The system solves problems found in tracking objects in unconstrained environments, such as in sports games, where ther... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Experiments in constructing belief networks for image classification systems

    Publication Year: 2000, Page(s):46 - 49 vol.3
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    We present procedures and experimental results in constructing belief networks for image classification systems based on probabilistic reasoning. In particular, we compare the performance of systems based on manually constructed and automatically constructed belief networks. The systems exploit existing image descriptions and also exploit interactions between multiple classifiers to improve classi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fusion classification of hyperspectral image based on adaptive subspace decomposition

    Publication Year: 2000, Page(s):472 - 475 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Data fusion is widely used in many fields in the last two decades. With the development of the hyperspectral sensor technique, the concept of data fusion is introduced into the classification investigation of hyperspectral data recently. Consensus theory is one of the data fusion methods, in which how to properly choose and assign the weights is very important for the improvement of fusion classif... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-bit image watermarking robust to geometric distortions

    Publication Year: 2000, Page(s):710 - 713 vol.3
    Cited by:  Papers (2)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    A novel method for multi-bit image watermarking robust to geometric distortions is proposed. A binary watermark is embedded in a grayscale or a color host image. The ability of progressive watermark detection enables fast and robust watermark detection even after several geometric distortions of the watermarked image. The embedding of a multi-bit message and its robust decoding after the watermark... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Priority dropping in network transmission of scalable video

    Publication Year: 2000, Page(s):400 - 403 vol.3
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    By constructing a model which takes into account the frame dependence of multimedia streams, we analyze the performance of different packet dropping mechanisms and find that scalable video combined with the priority dropping mechanism can bring higher throughput, lower delay and lower delay jitter. We also find the optimum system parameters for multimedia transmission. This study is important for ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimal shape detection

    Publication Year: 2000, Page(s):885 - 888 vol.3
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    We present a new approach for accurate detection of two-dimensional shapes. We first derive an optimal smoothing filter, which minimizes both the noise power and the mean squared error between the input and the filter output. This operator is found to be a derivative of the double exponential (DODE) function. We define an operator for shape detection by extending the DODE filter along the shape's ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Color based video segmentation using level sets

    Publication Year: 2000, Page(s):480 - 483 vol.3
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    A novel segmentation algorithm for color video sequences using the level set technique is proposed. This algorithm is applied to the problem of automatic face region segmentation in video sequences. Given a target color range training set, a model of that color distribution is formed. An objective-function is then defined that seeks the boundaries of any regions in an image that match the target c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Rotationally invariant texture features using the dual-tree complex wavelet transform

    Publication Year: 2000, Page(s):901 - 904 vol.3
    Cited by:  Papers (13)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    New rotationally invariant texture feature extraction methods are introduced that utilise the dual-tree complex wavelet transform (DT-CWT). The complex wavelet transform is a new technique that uses a dual tree of wavelet filters to obtain the real and imaginary parts of complex wavelet coefficients. When applied in two dimensions the DT-CWT produces shift invariant orientated subbands. Both isotr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robustness of a blind image watermarking scheme

    Publication Year: 2000, Page(s):17 - 20 vol.3
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    It was shown previously that, in some situations, blind watermarking can perform as well as watermarking schemes with the host signal available to the decoder. In this paper, blind watermarking of colored Gaussian host signals in the presence of filtering and additive Gaussian noise attacks is discussed. Three suboptimal but practical schemes are compared with a scheme where the host signal is ava... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hierarchical mesh-based global motion estimation, including occlusion areas detection

    Publication Year: 2000, Page(s):620 - 623 vol.3
    Cited by:  Papers (4)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    We present a method which is able to determine the occlusion areas appearing in a mesh-based motion estimation. The use of the motion estimation scheme based on a non-uniform hierarchical triangular mesh and the optimization of the nodal motion vectors by means of a multi-resolution differential method leads to efficient and fast motion estimation as well as motion field refinement. Although globa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Restoration of wavelet-compressed images using adaptively masking smoothness constraints

    Publication Year: 2000, Page(s):989 - 992 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The wavelet-compressed images suffer from coding artifacts, such as ringing and blurring, due to quantizing the transform coefficients. To reduce such coding artifacts, we propose a new image enhancement algorithm based on regularized iterative image restoration. The proposed algorithm uses multiple constraints to simultaneously suppress the coding artifacts and preserve the original high-frequenc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Combine user defined region-of-interest and spatial layout for image retrieval

    Publication Year: 2000, Page(s):746 - 749 vol.3
    Cited by:  Papers (10)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Content-based image retrieval (CBIR) is one of the most active research areas. Many visual feature representations have been explored and many systems built. However, in most of current systems, only the global features such as overall color histogram and texture moments are used which ignore the actual composition of the image in terms of internal objects. Although relevance feedback was proposed... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.