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Automated scalable segmentation of neurons from multispectral images

Uygar Sümbül · Douglas Roossien · Dawen Cai · Fei Chen · Nicholas Barry · John Cunningham · Edward Boyden · Liam Paninski

Area 5+6+7+8 #167

Keywords: [ (Other) Neuroscience ] [ (Application) Object and Pattern Recognition ] [ (Application) Computer Vision ] [ Clustering ]


Reconstruction of neuroanatomy is a fundamental problem in neuroscience. Stochastic expression of colors in individual cells is a promising tool, although its use in the nervous system has been limited due to various sources of variability in expression. Moreover, the intermingled anatomy of neuronal trees is challenging for existing segmentation algorithms. Here, we propose a method to automate the segmentation of neurons in such (potentially pseudo-colored) images. The method uses spatio-color relations between the voxels, generates supervoxels to reduce the problem size by four orders of magnitude before the final segmentation, and is parallelizable over the supervoxels. To quantify performance and gain insight, we generate simulated images, where the noise level and characteristics, the density of expression, and the number of fluorophore types are variable. We also present segmentations of real Brainbow images of the mouse hippocampus, which reveal many of the dendritic segments.

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