Search Results for author: Tom Fletcher

Found 5 papers, 0 papers with code

Stochastic Image Deformation in Frequency Domain and Parameter Estimation using Moment Evolutions

no code implementations13 Dec 2018 Line Kühnel, Alexis Arnaudon, Tom Fletcher, Stefan Sommer

We apply a stochastic generalisation of the Large Deformation Diffeomorphic Metric Mapping (LDDMM) framework to model differences in the evolution of anatomical objects detected in populations of image data.

Anatomy

Deep Diffeomorphic Normalizing Flows

no code implementations8 Oct 2018 Hadi Salman, Payman Yadollahpour, Tom Fletcher, Kayhan Batmanghelich

We use a neural network to parametrize the smooth vector field and a recursive neural network (RNN) for approximating the solution of the ODE.

Density Estimation Variational Inference

Latent Space Non-Linear Statistics

no code implementations19 May 2018 Line Kuhnel, Tom Fletcher, Sarang Joshi, Stefan Sommer

Given data, deep generative models, such as variational autoencoders (VAE) and generative adversarial networks (GAN), train a lower dimensional latent representation of the data space.

Probabilistic Principal Geodesic Analysis

no code implementations NeurIPS 2013 Miaomiao Zhang, Tom Fletcher

Principal geodesic analysis (PGA) is a generalization of principal component analysis (PCA) for dimensionality reduction of data on a Riemannian manifold.

Dimensionality Reduction

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