IEE Proceedings - Vision, Image and Signal Processing

Issue 1 • 9 Feb. 2006

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Displaying Results 1 - 11 of 11
  • Cryptanalysis of a data security protection scheme for VoIP

    Publication Year: 2006, Page(s):1 - 10
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1141 KB)

    A voice-over-Internet protocol technique with a new hierarchical data security protection (HDSP) scheme using a secret chaotic bit sequence has been recently proposed. Some insecure properties of the HDSP scheme are pointed out and then used to develop known/chosen-plaintext attacks. The main findings are: given n known plaintexts, about (100-(50/2n))% of secret chaotic bits can be uniq... View full abstract»

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  • Eye location method based on symmetry analysis and high-order fractal feature

    Publication Year: 2006, Page(s):11 - 16
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (230 KB)

    A method for eye location in human facial images based on symmetry analysis and the lacunarity, which is a high-order fractal feature, is proposed. First, the valley field algorithm is applied to the facial image and the eye candidates are identified. Then, principal component analysis is used to detect the symmetry axis of the human face. The eye candidates are grouped to form eye-pair candidates... View full abstract»

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  • Content-based image retrieval using Legendre chromaticity distribution moments

    Publication Year: 2006, Page(s):17 - 24
    Cited by:  Papers (12)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1136 KB)

    It is a well-known fact that the direct storing and comparison of the histogram for the purpose of content-based image retrieval (CBIR) is inefficient in terms of memory space and query processing time. It is shown that the set of Legendre chromaticity distribution moments (LCDM) provides a compact, fixed-length and computation effective representation of the colour contents of an image. Only a sm... View full abstract»

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  • Wavelet domain image resolution enhancement

    Publication Year: 2006, Page(s):25 - 30
    Cited by:  Papers (21)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (320 KB)

    A wavelet-domain image resolution enhancement algorithm which is based on the estimation of detail wavelet coefficients at high resolution scales is proposed. The method exploits wavelet coefficient correlation in a local neighbourhood sense and employs linear least-squares regression to estimate the unknown detail coefficients. Results show that the proposed method is considerably superior to con... View full abstract»

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  • Lifting-based wavelet domain adaptive Wiener filter for image enhancement

    Publication Year: 2006, Page(s):31 - 36
    Cited by:  Papers (7)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (802 KB)

    A method of applying lifting-based wavelet domain Wiener filter (LBWDMF) in image enhancement is proposed. Lifting schemes have emerged as a powerful method for implementing biorthogonal wavelet filters. They exploit the similarity of the filter coefficients between the low-pass and high-pass filters to provide a higher speed of execution, compared to classical wavelet transforms. LBWDMF not only ... View full abstract»

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  • Car tracking by quantised input LMS, QX-LMS algorithm in traffic scenes

    Publication Year: 2006, Page(s):37 - 45
    Cited by:  Papers (9)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (255 KB)

    The tracking algorithm is an important tool for motion analysis in computer vision. A new car tracking algorithm is proposed which is based on a new clipping technique in the field of adaptive filter algorithms. The uncertainty and occlusion of vehicles increase the noise in vehicle tracking in a traffic scene, so the new clipping technique can control noise in prediction of vehicle positions. The... View full abstract»

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  • Low complexity deblocking method for DCT coded video signals

    Publication Year: 2006, Page(s):46 - 56
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (991 KB)

    A new method to remove blocking artefacts in low bit-rate block-based video coding, such as MPEG-4 and H.264, is presented. A low computational deblocking filter with five modes is proposed, including three frequency-related modes (smooth mode, intermediate mode, and complex mode for low-frequency, mid-frequency, and high-frequency regions, respectively), one special mode (steep mode for a large o... View full abstract»

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  • Registration algorithm based on image matching for outdoor AR system with fixed viewing position

    Publication Year: 2006, Page(s):57 - 62
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (255 KB)

    An image registration method based on the Fourier-Mellin transform is introduced for an outdoor augmented reality (AR) system. For this type of AR system, the observation position is fixed, and a complex 3-D registration problem can be reduced to a 2-D image registration for this fixed viewing position system. An observation globe model for this method is proposed. Under this supposition, a Fourie... View full abstract»

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  • Recovery of motion vectors for error concealment based on an edge-detection approach

    Publication Year: 2006, Page(s):63 - 69
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (345 KB)

    A new approach to error concealment is presented which exploits both spatial and temporal information from the current and previous frames. The technique consists of two stages, motion vector estimation and enhancement of the estimated motion vector. In the first stage the proposed method estimates a replacement for the corrupted motion vector by applying dynamic weights to related motion vectors ... View full abstract»

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  • Design and parallel computation of regularised fast Hartley transform

    Publication Year: 2006, Page(s):70 - 78
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (177 KB)

    The paper describes the design and parallel computation of a regularised fast Hartley transform (FHT), to be used for computation of the discrete Fourier transform (DFT) of real-valued data. For the processing of such data, the FHT has attractions over the fast Fourier transform (FFT) in terms of reduced arithmetic operation counts and reduced memory requirement, whilst its bilateral property mean... View full abstract»

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  • Digital integrator design using Simpson rule and fractional delay filter

    Publication Year: 2006, Page(s):79 - 86
    Cited by:  Papers (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (164 KB)

    The IIR digital integrator is designed by using the Simpson integration rule and fractional delay filter. To improve the design accuracy of a conventional Simpson IIR integrator at high frequency, the sampling interval is reduced from T to 0.5T. As a result, a fractional delay filter needed to be designed in the proposed Simpson integrator. However, this problem can be solved easily by applying we... View full abstract»

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Aims & Scope

Published from 1994-2006, IEE Proceedings - Vision, Image and Signal Processing contained significant and original contributions on computer vision, image processing and signal processing.

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