A statistical approach for intensity loss compensation of confocal microscopy images

Sowmya Gopinath, Ninad Thakoor, Gao Jean, Kate Luby-Phelps

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In this paper a probabilistic technique for compensation of intensity loss in the confocal microscopy images is presented. Confocal microscopy images are modeled as a mixture of two Gaussians, one representing the background and another corresponding to the foreground. Images are segmented into foreground and background by applying Expectation Maximization (EM) algorithm to the mixture. Final intensity compensation is carried out by scaling and shifting the original intensities with help of parameters estimated for the foreground. Since foreground is separated to calculate the compensation parameters, the method is effective even when image structure changes from frame to frame. As Intensity Decay Function (IDF) is not used, complexity associated with estimation of IDF parameters is eliminated. Also, images can be compensated out of order as only information from the reference image is required for compensation of any image. These properties make our method an ideal tool for intensity compensation of confocal microscopy images which can suffer intensity loss due to absorption/scatteing of light as well as photobleaching and can change structure from optical/temporal section to section due to change in the depth of specimen or due to a living specimen. The proposed method was tested with number of image stacks and results for one of the stacks are presented here to demonstrate the effectiveness of the method.

Original languageEnglish (US)
Title of host publication2007 IEEE International Conference on Image Processing, ICIP 2007 Proceedings
PagesVI249-VI252
DOIs
StatePublished - Dec 1 2006
Event14th IEEE International Conference on Image Processing, ICIP 2007 - San Antonio, TX, United States
Duration: Sep 16 2007Sep 19 2007

Publication series

NameProceedings - International Conference on Image Processing, ICIP
Volume6
ISSN (Print)1522-4880

Other

Other14th IEEE International Conference on Image Processing, ICIP 2007
CountryUnited States
CitySan Antonio, TX
Period9/16/079/19/07

Keywords

  • Biomedical image processing
  • Biomedical microscopy
  • Image compensation

ASJC Scopus subject areas

  • Engineering(all)

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