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IEE Proceedings - Vision, Image and Signal Processing

Issue 6 • Date Dec 2002

 This issue contains several parts.Go to:  Part Supplement 

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Displaying Results 1 - 8 of 8
  • Colour image retrieval based on primitives of colour moments

    Publication Year: 2002, Page(s):370 - 376
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (537 KB)

    A colour image retrieval method based on the primitives of colour moments is proposed. First, an image is divided into several blocks. Then, the colour moments of all blocks are extracted and clustered into several classes. The mean moments of each class are considered as a primitive of the image. All primitives are used as features. Since two different images may have different numbers of feature... View full abstract»

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  • Spatial coefficient partitioning for lossless wavelet image coding

    Publication Year: 2002, Page(s):365 - 369
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (425 KB)

    In pyramidal wavelet representation, an image is decomposed into multiresolution and multifrequency subbands with sets of tree-structured coefficients, i.e. a spatial orientation tree which consists of coefficients at different resolutions and different orientations but associated with the same spatial location. The magnitudes of the coefficients in these trees measure the signal activity level of... View full abstract»

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  • Error resilience of multireference motion compensated prediction in video coding

    Publication Year: 2002, Page(s):355 - 364
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (581 KB)

    Standard coded video is vulnerable to transmission errors when transmitted over unreliable channels. The authors propose using multireference motion compensated prediction (MCP) to provide resilience to transmission errors. Both the concealment error and propagation error can be reduced in multireference MCR. First, using the multiple motion vectors associated with each coded block, a concealment ... View full abstract»

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  • Information-theoretic learning for FAN network applied to eterokurtic component analysis

    Publication Year: 2002, Page(s):347 - 354
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (593 KB)

    The paper presents a novel approach for performing the independent component analysis of mixed plati-kurtic and lepto-kurtic source signals, which is referred to as the 'eterokurtic' blind source separation problem. The approach employs a neural network formed by adaptive activation function neurons, which provide the statistics required for learning by the extended INFOMAX theory. Through compute... View full abstract»

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  • Two-stage, least squares design of biorthogonal filter banks

    Publication Year: 2002, Page(s):341 - 346
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (370 KB)

    A two-stage approach is employed for the design of a class of two-channel biorthogonal filter banks. The filter banks belong to the class HPFB (halfband pair filter bank) and are defined by two kernels. The parametric Bernstein polynomial is used to construct the kernels. The design of the free parameters of the Bernstein polynomial is achieved through a least squares method. In the first stage, t... View full abstract»

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  • Perceptual audio data concealment and watermarking scheme using direct frequency domain substitution

    Publication Year: 2002, Page(s):335 - 340
    Cited by:  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (496 KB)

    A method is described for perceptually transparent data concealment and watermarking in audio. The proposed system replaces redundant and imperceptible frequency components with hidden data. A psychoacoustic model is used to identify suitable frequency locations for data hiding. Such a method is complicated by the windowing and overlapping requirements used for signal conditioning. The proposed sy... View full abstract»

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  • Noise-robust pitch detection method using wavelet transform with aliasing compensation

    Publication Year: 2002, Page(s):327 - 334
    Cited by:  Papers (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (548 KB)

    An improved wavelet-based method is developed for extracting pitch information from noisy speech. It uses a modified spatial correlation function which is originally applied to wavelet-based signal denoising to improve the performance of pitch detection in a noisy environment. The modified spatial correlation function needed in the proposed pitch detection method makes use of an aliasing compensat... View full abstract»

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  • Integration of harmonic and analysis by synthesis coders

    Publication Year: 2002, Page(s):321 - 326
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (442 KB)

    Hybrid coding of speech has been proposed to overcome the limitations of a single model in representing the wide variety of characteristics of human speech. A new hybrid coding algorithm, which combines harmonic and analysis by synthesis coding techniques, is presented. To integrate the harmonic and analysis by synthesis coders, novel phase synchronisation and speech classification techniques are ... View full abstract»

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