IEEE J Biomed Health Inform - Segmentation and tracing of single neurons from 3D confocal microscope images.

Tópicos

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Resumo

In order to understand the brain, we need to first understand the morphology of neurons. In the neurobiology community, there have been recent pushes to analyze both neuron connectivity and the influence of structure on function. Currently, a technical road block that stands in the way of these studies is the inability to automatically trace neuronal structure from microscopy. On the image processing side, proposed tracing algorithms face difficulties in low contrast, indistinct boundaries, clutter, and complex branching structure. To tackle these difficulties, we develop Tree2Tree, a robust automatic neuron segmentation and morphology generation algorithm. Tree2Tree uses a local medial tree generation strategy in combination with a global tree linking to build a maximum likelihood global tree. Recasting the neuron tracing problem in a graph-theoretic context enables Tree2Tree to estimate bifurcations naturally, which is currently a challenge for current neuron tracing algorithms. Tests on cluttered confocal microscopy images of Drosophila neurons give results that correspond to ground truth within a margin of ?2.75% normalized mean absolute error.

Resumo Limpo

order understand brain need first understand morpholog neuron neurobiolog communiti recent push analyz neuron connect influenc structur function current technic road block stand way studi inabl automat trace neuron structur microscopi imag process side propos trace algorithm face difficulti low contrast indistinct boundari clutter complex branch structur tackl difficulti develop treetre robust automat neuron segment morpholog generat algorithm treetre use local medial tree generat strategi combin global tree link build maximum likelihood global tree recast neuron trace problem graphtheoret context enabl treetre estim bifurc natur current challeng current neuron trace algorithm test clutter confoc microscopi imag drosophila neuron give result correspond ground truth within margin normal mean absolut error

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