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Dr Christopher Hughes' Outputs (47)

A directed particle system for optimised visualization of blood flow in complex networks (2013)
Journal Article
Pop, S., Hughes, C., Ap Cenydd, L., & John, N. (2013). A directed particle system for optimised visualization of blood flow in complex networks. https://doi.org/10.3233/978-1-61499-209-7-330

This paper introduces a novel technique for the visualization of blood (or other fluid) flowing through a complex 3D network of vessels. The Directed Particle System (DPS) approach is loosely based on the computer graphics concept of flocking agents.... Read More about A directed particle system for optimised visualization of blood flow in complex networks.

epSpread - Storyboarding for visual analytics (2011)
Presentation / Conference
Cenydd, L., Walker, R., Pop, S., Miles, H., Hughes, C., Teahan, W., & Roberts, J. (2011, October). epSpread - Storyboarding for visual analytics. Presented at 2011 IEEE Conference on Visual Analytics Science and Technology (VAST), Providence, Rhode Island, USA

We present epSpread, an analysis and storyboarding tool for geolocated microblogging data. Individual time points and ranges are analysed through queries, heatmaps, word clouds and streamgraphs.
The underlying narrative is shown on a storyboard-styl... Read More about epSpread - Storyboarding for visual analytics.

Calibrating the Kinect with a 3D projector to create a tangible tabletop interface (2011)
Presentation / Conference
Hughes, C., Sinclair, F., Pagella, T., & Roberts, J. (2011, September). Calibrating the Kinect with a 3D projector to create a tangible tabletop interface. Poster presented at 2011 Joint Virtual Reality Conference (EuroVR-EGVE), Nottingham, UK

In this poster we present a portable and easy to calibrate 3D tabletop display enabling easy understanding of complex datasets and simulations by providing a
visualization environment with natural interaction. This table enables users to interact wi... Read More about Calibrating the Kinect with a 3D projector to create a tangible tabletop interface.

A robotic needle interface for interventional radiology training (2011)
Presentation / Conference
Hughes, C., & John, N. (2011, June). A robotic needle interface for interventional radiology training. Presented at The 4th Hamlyn Symposium for Medical Robotics, Imperial College, London, UK

Interventional Radiology (IR) provides a minimally invasive method for accessing vessels and organs as an alternative to traditional open surgery. By manipulating coaxially a catheter and guidewire through the vascular system, a range of pathologies... Read More about A robotic needle interface for interventional radiology training.

Using a Kinect interface to develop an interactive 3D tabletop display (2011)
Presentation / Conference
Cenydd, L., Hughes, C., Roberts, J., & Walker, R. (2011, April). Using a Kinect interface to develop an interactive 3D tabletop display. Poster presented at Eurographics 2011-Posters, Llandudno, Wales

Since the release of the motion picture ’Minority Report’ in 2002, which depicts Tom Cruise interacting with
a video display using only hand gestures, there has been a significant interest in the development of intelligent
display technology, that... Read More about Using a Kinect interface to develop an interactive 3D tabletop display.

A model for flexible tools used in minimally invasive medical virtual environments (2011)
Journal Article
Soler, F., Luzon, M., Pop, S., Hughes, C., John, N., & Torres, J. (2011). A model for flexible tools used in minimally invasive medical virtual environments. https://doi.org/10.3233/978-1-60750-706-2-594

Within the limits of current technology, many applications of a virtual environment will trade-off accuracy for speed. This is not an acceptable compromise in a medical training application where both are essential. Efficient algorithms must therefor... Read More about A model for flexible tools used in minimally invasive medical virtual environments.

The need to touch medical virtual environments? (2010)
Presentation / Conference
Bello, F., Coles, T., Gould, D., Hughes, C., John, N., Vidal, F., & Watt, S. (2010, March). The need to touch medical virtual environments?. Presented at Workshop of Medical Virtual Environments at IEEE VR 2010, Waltham, MA, USA

Haptics technologies are frequently used in virtual
environments to allow participants to touch virtual objects.
Medical applications are no exception and a wide variety of
commercial and bespoke haptics hardware solutions have
been employed to a... Read More about The need to touch medical virtual environments?.

Computational requirements of the virtual patient (2009)
Presentation / Conference
John, N., Hughes, C., Pop, S., Vidal, F., & Buckley, O. (2009, June). Computational requirements of the virtual patient. Presented at 1st International Conference on Mathematical and Computational Biomedical Engineering, Swansea, UK

Medical visualization in a hospital can be used to aid training, diagnosis, and pre- and intra-operative planning. In such an application, a virtual representation of a patient is needed that is interactive, can be viewed in three dimensions (3D), an... Read More about Computational requirements of the virtual patient.

Particle methods for a virtual patient (2009)
Presentation / Conference
Buckley, O., Hughes, C., John, N., & Pop, S. (2009, June). Particle methods for a virtual patient. Presented at 1st International Conference on Mathematical and Computational Biomedical Engineering, Swansea, UK

The particle systems approach is a well known technique in computer graphics for modelling fuzzy objects such as fire and clouds. The algorithm has also been applied to different biomedical applications and this paper presents two such methods: a cha... Read More about Particle methods for a virtual patient.

Real-time Seldinger technique simulation in complex vascular models (2009)
Journal Article
Luboz, V., Hughes, C., Gould, D., John, N., & Bello, F. (2009). Real-time Seldinger technique simulation in complex vascular models. International Journal of Computer Assisted Radiology and Surgery, 4(2009), 589-596. https://doi.org/10.1007/s11548-009-0376-0

Purpose: Commercial interventional radiology vascular simulators emulate instrument navigation and device deployment, though none supports the Seldinger technique, which provides initial access to the vascular tree. This paper presents a novel virtua... Read More about Real-time Seldinger technique simulation in complex vascular models.

Physics-based virtual environment for training core skills in vascular interventional radiological procedures (2008)
Journal Article

Recent years have seen a significant increase in the use of Interventional Radiology (IR) as an alternative to open surgery. A large number of IR procedures commence with needle puncture of a vessel to insert guidewires and catheters: these clinical... Read More about Physics-based virtual environment for training core skills in vascular interventional radiological procedures.

A flexible infrastructure for delivering augmented reality enabled transcranial magnetic stimulation (2006)
Journal Article
Hughes, C., & John, N. (2006). A flexible infrastructure for delivering augmented reality enabled transcranial magnetic stimulation

Transcranial Magnetic Stimulation (TMS) is the process in which electrical activity in the brain is influenced by a pulsed magnetic field. Common practice is to align an electromagnetic coil with points of interest identified on the surface of the br... Read More about A flexible infrastructure for delivering augmented reality enabled transcranial magnetic stimulation.