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Dr Christopher Hughes' Outputs (46)

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.

Interventional radiology core skills simulation : mid term status of the CRaIVE projects (2008)
Presentation / Conference
Gould, D., Vidal, F., Hughes, C., Villard, P., Luboz, V., John, N., …Kessel, D. (2008, September). Interventional radiology core skills simulation : mid term status of the CRaIVE projects. Poster presented at CIRSE 2008, Copenhagen, Denmark

There is a shortage of radiologists trained in performance of Interventional radiology (IR) procedures. Visceral and vascular IR techniques almost universally commence with a needle puncture, usually to a specific target for biopsy, or to introduce w... Read More about Interventional radiology core skills simulation : mid term status of the CRaIVE projects.

Physics-based virtual environment for training core skills in vascular interventional radiological procedures (2008)
Journal Article
John, N., Luboz, V., Bello, F., Hughes, C., Vidal, F., Lim, I., …Gould, D. (2008). Physics-based virtual environment for training core skills in vascular interventional radiological procedures

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.

Improving the modeling of medical imaging data for simulation (2008)
Presentation / Conference
Villard, P., Littler, P., Gough, V., Vidal, F., Hughes, C., John, N., …Gould, D. (2008, January). Improving the modeling of medical imaging data for simulation. Presented at United Kingdom Radiology Congress (UKRC), Birmingham, UK

PURPOSE-MATERIALS: To use patient imaging as the basis for developing virtual environments (VE).
BACKGROUND: Interventional radiology basic skills are still taught in an apprenticeship in patients, though these could be learnt in high fidelity sim... Read More about Improving the modeling of medical imaging data for simulation.

Adaptive infrastructure for visual computing (2007)
Journal Article
Brodlie, K., Brooke, J., Chen, M., Chisnall, D., Hughes, C., John, N., …Wood, J. (2007). Adaptive infrastructure for visual computing. https://doi.org/10.2312/LocalChapterEvents/TPCG/TPCG07/147-156

Recent hardware and software advances have demonstrated that it is now practicable to run large visual computing
tasks over heterogeneous hardware with output on multiple types of display devices. As the complexity of the
enabling infrastructure in... Read More about Adaptive infrastructure for visual computing.

A framework for adaptive visualization (2006)
Presentation / Conference
Brodlie, K., Brooke, J., Chen, M., Chisnall, D., Hughes, C., John, N., …Wood, J. (2006, October). A framework for adaptive visualization. Presented at IEEE Visualization, Baltimore, MD, USA

Although desktop graphical capabilities continually improve,
visualization at interactive frame rates remains a problem for very large datasets or complex rendering algorithms. This is particularly evident in scientific visualization, (e.g., medical... Read More about A framework for adaptive visualization.

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.

eViz : towards an integrated framework for high performance visualization (2005)
Presentation / Conference
Riding, M., Wood, J., Brodlie, K., Brooke, J., Chen, M., Chisnal, D., …Roard, N. (2005, September). eViz : towards an integrated framework for high performance visualization. Presented at UK e-Science All Hands Meeting 2005, Nottingham, UK

Existing Grid visualization systems typically focus on the distribution onto remote machines of some or all of the processes encompassing the visualization pipeline, with the aim of increasing the maximum data size, achievable frame rates or display... Read More about eViz : towards an integrated framework for high performance visualization.

Visual supercomputing : technologies, applications and challenges (2005)
Journal Article
Brodlie, K., Brooke, J., Chen, M., Chisnal, D., Fewings, A., Hughes, C., …Roard, N. (2005). Visual supercomputing : technologies, applications and challenges. Computer Graphics Forum, 24(2), 217-245. https://doi.org/10.1111/j.1467-8659.2005.00845.x%7C

If we were to have a Grid infrastructure for visualization, what technologies would be needed to build such an infrastructure, what kind of applications would benefit from it, and what challenges are we facing in order to accomplish this goal? In thi... Read More about Visual supercomputing : technologies, applications and challenges.

Immersive captioning : developing a framework for evaluating user needs
Presentation / Conference
for evaluating user needs. Presented at IEEE AIVR 2020 : 3rd International Conference on Artificial Intelligence & Virtual Reality 2020, Online

This article focuses on captioning for immersive
environments and the research aims to identify how to display
them for an optimal viewing experience. This work began four
years ago with some partial findings. This second stage of
research, built... Read More about Immersive captioning : developing a framework for evaluating user needs.