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    GridWeaver: A Fully-Automatic System for Microarray Image Analysis Using Fast Fourier Transforms

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    Downloads: 103
    TR number
    TR-08-05
    Date
    2008
    Author
    Vergara, John Paul C.
    Heath, Lenwood S.
    Grene, Ruth
    Ramakrishnan, Naren
    Watson, Layne T.
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    Abstract
    Experiments using microarray technology generate large amounts of image data that are used in the analysis of genetic function. An important stage in the analysis is the determination of relative intensities of spots on the images generated. This paper presents GridWeaver, a program that reads in images from a microarray experiment, automatically locates subgrids and spots in the images, and then determines the spot intensities needed in the analysis of gene function. Automatic gridding is performed by running Fast Fourier Transforms on pixel intensity sums. Tests on several data sets show that the program responds well even on images that have significant noise, both random and systemic.
    URI
    http://hdl.handle.net/10919/20150
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    • Computer Science Technical Reports [1036]

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