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Designed especially for neurobiologists, FluoRender is an interactive tool for multi-channel fluorescence microscopy data visualization and analysis.
Deep brain stimulation
BrainStimulator is a set of networks that are used in SCIRun to perform simulations of brain stimulation such as transcranial direct current stimulation (tDCS) and magnetic transcranial stimulation (TMS).
Developing software tools for science has always been a central vision of the SCI Institute.

Events on March 2, 2015

Miaomiao Zhang and Hang Shao

Miaomiao Zhang and Hang Shao Presents:

A Gaussian Mixture Model for Diffeomorphic Multi-Atlas Building

March 2, 2015 at 12:00pm for 1hr
Evans Conference Room, WEB 3780
Warnock Engineering Building, 3rd floor.

Abstract:

Computing image atlases that represent a large data set is an important first step for statistical analysis of images, quantifying shapes, etc. Most current approaches estimate a single atlas to represent the average of a large population of images. However, a single atlas is not sufficiently expressive to capture distributions of images with multiple modes. In this paper, we present a Gaussian mixture model for building diffeomorphic multi-atlases that can represent sub-populations without knowing the category of each observed data point. In our probabilistic model, we treat diffeomorphic image transformations as latent variables, and integrate them out using a Monte Carlo Expectation Maximization (MCEM) algorithm via Hamiltonian Monte Carlo (HMC) sampling. Another benefit of our model is that the Gaussian mixture modeling simultaneously does automatic clustering of the dataset. This work is submitting to MICCAI 2015.

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