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Application of Fractal Techniques in Image Processing, IEE Colloquium on

Date 3 Dec 1990

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Displaying Results 1 - 9 of 9
  • The use of fractal modelling in texture analysis

    Publication Year: 1990 , Page(s): 7/1 - 7/5
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (252 KB)  

    Presents some results of using fractals and fractal ideas in both the modelling and analysis of textures. Much of the work is directed at applications related to studies of the seabed. The real data arrives in the form of sonar or video data. The sonar data is digitised and stored and analysed in image form. The data is complex and occupies large amounts of computer storage. There is a requirement... View full abstract»

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  • IEE Colloquium on `Application of Fractal Techniques in Image Processing' (Digest No.171)

    Publication Year: 1990
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (44 KB)  

    The following topics were dealt with: iterated function system theory for image compression; wavelet transform in fractal image modelling; block based fractal coding of still pictures; multi-resolution decomposition of fractal images; deterministic rendering of self-affine fractals; textural characterisation; texture analysis; and fractal based synthesis of visual texture View full abstract»

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  • Deterministic rendering of self-affine fractals

    Publication Year: 1990 , Page(s): 5/1 - 5/4
    Cited by:  Papers (10)  |  Patents (3)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (212 KB)  

    Most literature on fractals defined by self-affine systems (SASs) assume that Monte Carlo methods will be used for rendering the attractor. These are so inefficient as to be unsuitable for use in decompressing fractally coded images. The authors introduce a deterministic algorithm, minimum point plotting (MPP), which is optimal in the number of pixels plotted on a graphics screen without requiring... View full abstract»

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  • Accurate textural characterisation using fractal techniques

    Publication Year: 1990 , Page(s): 6/1 - 6/6
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (272 KB)  

    It has been demonstrated that the fractal dimension is not sufficient to completely categorise texture. However, fractal techniques do have advantages over statistical and structural methods, by providing a framework more suited to natural textures. Many natural textures show fractal-like properties of statistical, if not deterministic, self-similarity. Natural textures exhibit only a limited rang... View full abstract»

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  • Multi-resolution decomposition of fractal images

    Publication Year: 1990 , Page(s): 4/1 - 4/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (168 KB)  

    A method for multi-resolution decomposition of two-dimensional images has been developed in which correlation filters are applied over a range of scales and locally maximum values in the filter outputs extracted. Viewed in the spatial-frequency plane, the correlation filters provide tuned channels, or windows, covering a range of sizes, and can be chosen to act as feature detectors for various fea... View full abstract»

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  • Advances in block based fractal coding of still pictures

    Publication Year: 1990 , Page(s): 3/1 - 3/6
    Cited by:  Papers (12)  |  Patents (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (288 KB)  

    Fractal coding is a new technique for compressing images, which exploits similarities in different parts of the picture. For example, with a picture of a fern one can see easily where these similarities lie, each fern leaf resembling a smaller fern. With a more general picture it is not as obvious where these similarities lie. That is because attention is dominated by the macroscopic detail in the... View full abstract»

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  • Fractal based synthesis of visual texture

    Publication Year: 1990 , Page(s): 8/1 - 8/4
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (132 KB)  

    The fractal model is used as the basis of a texture analysis and synthesis technique for use on perceived visual texture in natural scenes of vegetation. Preliminary studies found that natural scenes depart from the fractal model. The model is adapted to allow for deviation between perceived natural visual texture and true fractals. The texture generator is used to synthesize natural visual textur... View full abstract»

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  • On the use of the wavelet transform in fractal image modelling

    Publication Year: 1990 , Page(s): 2/1 - 2/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (188 KB)  

    Reviews recent results in the application of the wavelet transform in conjunction with fractal based techniques to image and general signal modelling. The wavelet representation allows scale to be made explicit, something which is inherent to the concept of a fractal, whether deterministic or stochastic. The authors deal specifically with the relationships between various fractal models and their ... View full abstract»

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  • A review of iterated function system theory for image compression

    Publication Year: 1990 , Page(s): 1/1 - 1/8
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (388 KB)  

    Presents a tutorial introduction to the theory of iterated function systems (IFSs) as applied to digital images and digital image compression, first developed by Jacquin (see ICASSP '90). There have been a number of excellent mathematical accounts of IFS theory applied to images but the aim is to show, using only elementary methods, why the IFS approach to digital image compression works. The auth... View full abstract»

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