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IET Image Processing

Issue 5 • Date October 2009

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Displaying Results 1 - 5 of 5
  • Distance measures for reduced ordering-based vector filters

    Publication Year: 2009, Page(s):249 - 260
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (884 KB)

    Reduced ordering-based vector filters have proved successful in removing long-tailed noise from colour images while preserving edges and fine image details. These filters commonly utilise variants of the Minkowski distance to order the colour vectors with the aim of distinguishing between noisy and noise-free vectors. In this study, the authors review various alternative distance measures and eval... View full abstract»

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  • Improved parabolic prediction-based fractional search for H.264/AVC video coding

    Publication Year: 2009, Page(s):261 - 271
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (696 KB)

    In this study, the authors propose an efficient fractional pixel search algorithm for H.264/AVC video coding to reduce the computational complexity in half/quarter-pixel motion estimation. A prediction for the optimal motion vector is derived under the assumption that the sum of absolute transform differences error surface is a symmetric parabolic function. With the optimal region, a decision rule... View full abstract»

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  • Real-time video object segmentation in H.264 compressed domain

    Publication Year: 2009, Page(s):272 - 285
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (759 KB)

    In this study the authors proposed a real-time video object segmentation algorithm that works in the H.264 compressed domain. The algorithm utilises the motion information from the H.264 compressed bit stream to identify background motion model and moving objects. In order to preserve spatial and temporal continuity of objects, Markov random field (MRF) is used to model the foreground field. Quant... View full abstract»

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  • Incremental rate control for H.264/AVC video compression

    Publication Year: 2009, Page(s):286 - 298
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (773 KB)

    In this study, the authors propose a new rate-complexity-quantisation model and an incremental rate control algorithm for H.264/AVC video coding. One unique property of this algorithm is that, the picture complexity estimation and rate-quantisation modelling are jointly designed with an incremental rate control for P-frames. In addition, the proposed algorithm also introduces a number of efficient... View full abstract»

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  • Quad-splitting algorithm for a window query on a Hilbert curve

    Publication Year: 2009, Page(s):299 - 311
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (652 KB)

    Space-filling curves, particularly, Hilbert curves, have been extensively used to maintain spatial locality of multi-dimensional data in a wide variety of applications. A window query is an important query operation in spatial (image) databases. Given a Hilbert curve, a window query reports its corresponding orders without the need to decode all the points inside this window into the corresponding... View full abstract»

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Aims & Scope

The range of topics covered by IET Image Processing includes areas related to the generation, processing and communication of visual information.

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