Microarray Image Analysis and Gene Expression Ratio Statistics

  • Yidong Chen
  • Edward R. Dougherty
  • Michael L. Bittner
  • Paul Meltzer
  • Jeffery Trent

4. Conclusions

Various image analysis issues have been addressed: target segmentation, background detection, target detection, and intensity measurement. Since microarray technology is still under development and image quality varies considerably, a robust and precise image analysis algorithm that reduces background interference and extracts precise signal intensity and expression ratios for each gene is critical to the success of further statistical analysis. The overall methodology discussed in this chapter has been developed and enhanced through five years of experience working with cDNA microarray images. It continues to be expanded and revised as new issues arise.


Target Detection Expression Ratio Ratio Statistics Green Channel cDNA Target 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Yidong Chen
    • 1
  • Edward R. Dougherty
    • 2
  • Michael L. Bittner
    • 1
  • Paul Meltzer
    • 1
  • Jeffery Trent
    • 1
  1. 1.Cancer Genetics Branch, National Human Genome Research InstituteNational Institutes of HealthBethesdaUSA
  2. 2.Department of Electrical EngineeringTexas A & M UniversityCollege StationUSA

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