Search Results for author: Joshua Mitton

Found 6 papers, 1 papers with code

Bessel Equivariant Networks for Inversion of Transmission Effects in Multi-Mode Optical Fibres

no code implementations26 Jul 2022 Joshua Mitton, Simon Peter Mekhail, Miles Padgett, Daniele Faccio, Marco Aversa, Roderick Murray-Smith

We develop a new type of model for solving the task of inverting the transmission effects of multi-mode optical fibres through the construction of an $\mathrm{SO}^{+}(2, 1)$-equivariant neural network.

Rotation Equivariant 3D Hand Mesh Generation from a Single RGB Image

no code implementations25 Nov 2021 Joshua Mitton, Chaitanya Kaul, Roderick Murray-Smith

Our rotation equivariant model outperforms state-of-the-art methods on a real-world dataset and we demonstrate that it accurately captures the shape and pose in the generated meshes under rotation of the input hand.

Subgraph Permutation Equivariant Networks

no code implementations23 Nov 2021 Joshua Mitton, Roderick Murray-Smith

In this work we develop a new method, named Sub-graph Permutation Equivariant Networks (SPEN), which provides a framework for building graph neural networks that operate on sub-graphs, while using a base update function that is permutation equivariant, that are equivariant to a novel choice of automorphism group.

CpT: Convolutional Point Transformer for 3D Point Cloud Processing

no code implementations21 Nov 2021 Chaitanya Kaul, Joshua Mitton, Hang Dai, Roderick Murray-Smith

It achieves this feat due to its effectiveness in creating a novel and robust attention-based point set embedding through a convolutional projection layer crafted for processing dynamically local point set neighbourhoods.

Segmentation Semantic Segmentation

Rotation Equivariant Deforestation Segmentation and Driver Classification

2 code implementations25 Oct 2021 Joshua Mitton, Roderick Murray-Smith

Deforestation has become a significant contributing factor to climate change and, due to this, both classifying the drivers and predicting segmentation maps of deforestation has attracted significant interest.

Classification Segmentation

A Graph VAE and Graph Transformer Approach to Generating Molecular Graphs

no code implementations9 Apr 2021 Joshua Mitton, Hans M. Senn, Klaas Wynne, Roderick Murray-Smith

Finally, we demonstrate that the model is interpretable by generating molecules controlled by molecular properties, and we then analyse and visualise the learned latent representation.

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