Theta-RBM: Unfactored Gated Restricted Boltzmann Machine for Rotation-Invariant Representations

Theta-RBM: Unfactored Gated Restricted Boltzmann Machine for Rotation-Invariant Representations

Learning invariant representations is a critical task in computer vision. In this paper, we propose the Theta-Restricted Boltzmann Machine (θ-RBM in short), which builds upon the original RBM formulation and injects the notion of rotation-invariance during the learning procedure. In contrast to previous ...
Rotation-Invariant Restricted Boltzmann Machine using Shared Gradient Filters

Rotation-Invariant Restricted Boltzmann Machine using Shared Gradient Filters

Finding suitable features has been an essential problem in computer vision. We focus on Restricted Boltzmann Machines (RBMs), which, despite their versatility, cannot accommodate transformations that may occur in the scene. As a result, several approaches have been proposed that consider a set of transformations,...
Whole Image Synthesis Using a Deep Encoder-Decoder Network

Whole Image Synthesis Using a Deep Encoder-Decoder Network

The synthesis of medical images is an intensity transformation of a given modality in a way that represents an acquisition with a different modality (in the context of MRI this represents the synthesis of images originating from different MR sequences). Most methods follow a patch-based approach, which...