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Developing a new methodology for de-noising and gridding cDNA microarray images

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4 Author(s)
Fouad, I.A. ; Syst. & Biomed. Eng. Dept., Cairo Univ., Cairo, Egypt ; Labib, F.Z.M. ; Sharawy, A.A.R. ; Mabrouk, M.S.

DNA Microarray is an innovative tool for gene studies in biomedical research, and its applications can vary from cancer diagnosis to human identification. In microarray experiment, the gene expression process is divided into three basic steps: gridding, segmentation, and quantification. For processing of microarray images, a new, automatic, fast and accurate approach is proposed for gridding noisy cDNA microarray images. In the real world, microarray image doesn't reflect measures of the fluorescence intensities for the dye of interest only, as different kinds of noise and artifacts can be observed. In this paper, a novel gridding method based on projection is developed accompanied by a preprocessing, post-processing, and refinement steps for noisy microarray images. Results revealed that the proposed method is used with high accuracy and minimal processing time and can be applied to various types of noisy microarray images.

Published in:

Biomedical Engineering Conference (CIBEC), 2012 Cairo International

Date of Conference:

20-22 Dec. 2012