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Bioinformatics Vol. 19 no. 11 2003
Pages 1431-1435
© 2003 Oxford University Press

An adjustable-threshold algorithm for the identification of objects in three-dimensional images

Artem L. Ponomarev 1,* and Ronald L. Davis 1,2

1 Department of Molecular and Cellular Biology, USA
2 Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, Texas 77030, USA

Received on October 1, 2002 ; revised on February 3, 2003 ; accepted on February 6, 2003

Motivation:To develop a highly accurate, practical and fast automated segmentation algorithm for three-dimensional images containing biological objects. To test the algorithm on images of the Drosophila brain, and identify, count and determine the locations of neurons in the images.

Results: A new adjustable-threshold algorithm was developed to efficiently segment fluorescently labeled objects contained within three-dimensional images obtained from laser scanning confocal microscopy, or two-photon microscopy. The result of the test segmentation with Drosophila brain images showed that the algorithm is extremely accurate and provided detailed information about the locations of neurons in the Drosophila brain. Centroids of each object (nucleus of each neuron) were also recorded into an algebraic matrix that describes the locations of the neurons.

Availability: Interested parties should send their request for the NeuronMapperTM program with the segmentation algorithm to artemp{at}bcm.tmc.edu.

Contact: artemp{at}bcm.tmc.edu

* To whom correspondence should be addressed.


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