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IET Image Processing

Issue 2 • Date April 2009

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Displaying Results 1 - 6 of 6
  • Contrast enhancement and phase-sensitive boundary detection in ultrasonic speckle using bessel spatial filters

    Publication Year: 2009, Page(s):41 - 51
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1053 KB)

    Speckle in ultrasonic image systems adversely impacts the contrast and resolution in the image. This poses serious problems in the interpretation of B mode images of internal organs such as breast, liver, kidney and so on. In the absence of sufficient contrast, classifying the regions of interest into benign and malignant masses becomes error prone. Since some of the masses are uniquely identified... View full abstract»

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  • Multi-component image segmentation using a hybrid dynamic genetic algorithm and fuzzy C-means

    Publication Year: 2009, Page(s):52 - 62
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1125 KB)

    Image segmentation is an important task in image analysis and processing. Many of the existing methods for segmenting a multi-component image (satellite or aerial) are very slow and require a priori knowledge of the image that could be difficult to obtain. Furthermore, the success of each of these methods depends on several factors, such as the characteristics of the acquired image, resolution lim... View full abstract»

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  • An effective calibration procedure for correction of parallax unmatched image pairs

    Publication Year: 2009, Page(s):63 - 74
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (985 KB)

    The stereo image pairs or two-view video sequences can be captured by two cameras at two horizontally different positions. If the stereo image pairs possess incompatible convergences of vertical parallax and horizontal parallax, human eyes generally cannot properly exhibit stereo visualisation. If the image pairs are taken from single camera or selected from a video sequence, perception of stereo ... View full abstract»

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  • Adaptive rate control for motion JPEG2000

    Publication Year: 2009, Page(s):75 - 87
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1077 KB)

    Rate and quality-constrained rate control is very effective for video applications, since it can maintain constant quality while eliminating local rate spikes. An adaptive rate control method based on image activity measures (ARCIAM) is proposed for Motion JPEG2000. The algorithm can efficiently adjust the compressed bit rates to meet the rate and quality constraints for different types of colour ... View full abstract»

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  • Multi-direction search algorithm for block motion estimation in H.264/AVC

    Publication Year: 2009, Page(s):88 - 99
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (783 KB)

    Many efficient search algorithms such as three-step search, new three-step search, four-step search, block-based gradient descent search, diamond search and hexagon-based search are developed for block motion estimation (ME) to search for the optimal objective function. The block ME technique involves an optimisation problem. Although these algorithms can converge to a minimal point rapidly, they ... View full abstract»

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  • Histogram-based reversible data hiding for vector quantisation-compressed images

    Publication Year: 2009, Page(s):100 - 114
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (915 KB)

    Reversible data hiding is required and preferable in many applications such as medical diagnosis, military, law enforcement, fine art work and so on. The author proposes to use reversible data hiding applications with a vector quantisation (VQ)-compressed image. The histogram of the prediction VQ-compressed image is explored. The prediction VQ encoded image is identical to traditional VQ encoding.... 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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