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— We present a status report on RAVE, our distributed, collaborative grid enabled visualiza-tion environment. We briefly review our architecture and related work, examine our collaborative support and relate this to an experiment carried out between SuperComputing 2004 (Pittsburgh, PA, USA) and the Cardiff School of Computer Science. Load distribution in(More)
The medical domain provides excellent opportunities for the application of computer graphics, visualization and virtual environments, with the potential to help improve healthcare and bring benefits to patients. This survey paper provides a comprehensive overview of the state-of-the-art in this exciting field. It has been written from the perspective of(More)
A proper mechanical characterization of soft biological tissues of the human body has a strong impact on several medical applications such as surgical planning, virtual reality simulators, trauma research, and for diagnostic purposes. Adequate experimental data are needed to describe quantitatively the mechanical behaviour of those organs. We present a(More)
We investigate and report a method of 3D virtual organ creation based on the RGB color laser surface scanning of preserved biological specimens. The surface attributes of these specimens result in signal degredation and increased scanning time. Despite these problems we are able to reproduce 3D virtual organs with both accurate topology and colour(More)
The standard 'back projection' image reconstruction algorithm developed at Sheffield uses data obtained by passing current between adjacent pairs of electrodes and measuring voltage differences between the remaining pairs. Previously it has been argued that this configuration gives the best resolution compared to all other bipolar drive configurations.(More)
This paper presents a distributed, collaborative grid enabled visualization environment that supports automated resource discovery across heterogeneous machines. OurResource-Aware Visualization Environment (RAVE) runs as a background process using Grid/Web services, enabling us to share resources with other users rather than commandeering an entire machine.(More)
Electrical impedance may be measured using electrodes on the surface of the cervix and recording the potential that results when an electrical current is passed. Increased hydration of the cervix has been described throughout pregnancy and occurs most dramatically before labour. This study compared tissue impedance measurements of the pregnant and(More)
OBJECTIVE To investigate the use of electrical impedance measurements of the pregnant cervix as an objective measure of cervical favorability (Bishop score > or = 5). METHODS A prospective study of 86 women, investigating electrical impedance measurements of the pregnant cervix at the time of induction of labor. Transfer electrical impedance measurements(More)
We present a brief review of 42 collaborative visualization systems, grouped into four application areas: collaborative problem-solving environments, virtual reality environments, multi-player online games and multi-user enabling of single user applications. The systems are then compared by five attributes: number of simultaneous users, user access control,(More)