Deconvolving Active Contours for Fluorescence Microscopy Images

Authors:
Jo A. Helmuth;Ivo F. Sbalzarini
Affiliations:
Institute of Theoretical Computer Science and Swiss Institute of Bioinformatics, ETH Zurich, Switzerland;Institute of Theoretical Computer Science and Swiss Institute of Bioinformatics, ETH Zurich, Switzerland
Venue:
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part I
Year:
2009

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Abstract

We extend active contours to constrained iterative deconvolution by replacing the external energy function with a model-based likelihood. This enables sub-pixel estimation of the outlines of diffraction-limited objects, such as intracellular structures, from fluorescence micrographs. We present an efficient algorithm for solving the resulting optimization problem and robustly estimate object outlines. We benchmark the algorithm on artificial images and assess its practical utility on fluorescence micrographs of the Golgi and endosomes in live cells.