Publications (12)
An update on the SCUBA-2 project
Michael Audley, Wayne Holland, Trevor Hodson +16
SCUBA-2, which replaces SCUBA (the Submillimeter Common User Bolometer Array) on the James Clerk Maxwell Telescope (JCMT) in 2006, is a large-format bolometer array for submillimet…
"Golden Ratio Yoshimura" for Meta-Stable and Massively Reconfigurable Deployment
Vishrut Deshpande, Yogesh Phalak, Ziyang Zhou +2
Yoshimura origami is a classical folding pattern that has inspired many deployable structure designs. Its applications span from space exploration, kinetic architectures, and soft…
Hyper Yoshimura: How a slight tweak on a classical folding pattern unleashes meta-stability for deployable robots
Ziyang Zhou, Yogesh Phalak, Vishrut Deshpande +3
Deployable structures inspired by origami have provided lightweight, compact, and reconfigurable solutions for various robotic and architectural applications. However, creating an…
Causality matters in medical imaging
Daniel C. Castro, Ian Walker, Ben Glocker
This article discusses how the language of causality can shed new light on the major challenges in machine learning for medical imaging: 1) data scarcity, which is the limited avai…
A Failure Identification and Recovery Framework for a Planar Reconfigurable Cable Driven Parallel Robot
Adhiti Raman, Ian Walker, Venkat Krovi +1
In cable driven parallel robots (CDPRs), a single cable malfunction usually induces complete failure of the entire robot. However, the lost static workspace (due to failure) can of…
Graph Convolutional Gaussian Processes
Ian Walker, Ben Glocker
We propose a novel Bayesian nonparametric method to learn translation-invariant relationships on non-Euclidean domains. The resulting graph convolutional Gaussian processes can be…
SCUBA-2: a 10,000 pixel submillimeter camera for the James Clerk Maxwell Telescope
Wayne Holland, Michael MacIntosh, Alasdair Fairley +30
SCUBA-2 is an innovative 10,000 pixel submillimeter camera due to be delivered to the James Clerk Maxwell Telescope in late 2006. The camera is expected to revolutionize submillime…
Controlling Meshes via Curvature: Spin Transformations for Pose-Invariant Shape Processing
Loic Le Folgoc, Daniel C. Castro, Jeremy Tan +5
We investigate discrete spin transformations, a geometric framework to manipulate surface meshes by controlling mean curvature. Applications include surface fairing -- flowing a me…
A passive THz video camera based on lumped element kinetic inductance detectors
Sam Rowe, Enzo Pascale, Simon Doyle +17
We have developed a passive 350 GHz (850 μm) video-camera to demonstrate lumped element kinetic inductance detectors (LEKIDs) -- designed originally for far-infrared astronomy --…
A Merger Origin for X-Structures in S0 Galaxies
Chris Mihos, Ian Walker, Lars Hernquist +2
Using numerical simulation, we study the response of a disk galaxy to a merger involving a low-mass satellite companion. During a prograde satellite accretion, the disk galaxy form…
Semi-Supervised Learning via Compact Latent Space Clustering
Konstantinos Kamnitsas, Daniel C. Castro, Loic Le Folgoc +6
We present a novel cost function for semi-supervised learning of neural networks that encourages compact clustering of the latent space to facilitate separation. The key idea is to…
An Energy Minimization Approach to 3D Non-Rigid Deformable Surface Estimation Using RGBD Data
Bryan Willimon, Steven Hickson, Ian Walker +1
We propose an algorithm that uses energy mini- mization to estimate the current configuration of a non-rigid object. Our approach utilizes an RGBD image to calculate corresponding…