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All Outputs (747)

Object-Capability Security in Virtual Environments (2008)
Presentation / Conference Contribution
Scheffler, M., Springer, J. P., & Froehlich, B. (2008, March). Object-Capability Security in Virtual Environments. Presented at 2008 IEEE Virtual Reality Conference

Access control is an important aspect of shared virtual environments.Resource access may not only depend on prior authorization, but alsoon context of usage such as distance or position in the scene graphhierarchy. In virtual worlds that allow user-c... Read More about Object-Capability Security in Virtual Environments.

Linking perception and action through motivation and affect (2008)
Journal Article
Davis, D. N. (2008). Linking perception and action through motivation and affect. Journal of Experimental and Theoretical Artificial Intelligence, 20(1), 37-60. https://doi.org/10.1080/09528130701472424

Research into cognitive architectures is described within a framework spanning major issues in artificial intelligence and cognitive science. Earlier work on motivation is extended with a cognitive model of reasoning which, together with an affective... Read More about Linking perception and action through motivation and affect.

Autonomous clustering using rough set theory (2008)
Journal Article
Bean, C., & Kambhampati, C. (2008). Autonomous clustering using rough set theory. International Journal of Automation and Computing, 5(1), 90-102. https://doi.org/10.1007/s11633-008-0090-3

This paper proposes a clustering technique that minimizes the need for subjective human intervention and is based on elements of rough set theory (RST). The proposed algorithm is unified in its approach to clustering and makes use of both local and g... Read More about Autonomous clustering using rough set theory.

Haptic feedback can provide an objective assessment of arthroscopic skills (2008)
Journal Article
Chami, G., Ward, J. W., Phillips, R., & Sherman, K. P. (2008). Haptic feedback can provide an objective assessment of arthroscopic skills. Clinical orthopaedics and related research, 466(4), 963-968. https://doi.org/10.1007/s11999-008-0115-9

The outcome of arthroscopic procedures is related to the surgeon's skills in arthroscopy. Currently, evaluation of such skills relies on direct observation by a surgeon trainer. This type of assessment, by its nature, is subjective and time-consuming... Read More about Haptic feedback can provide an objective assessment of arthroscopic skills.

Posterior probability measure for image matching (2008)
Journal Article
Feng, Z., Lu, N., & Jiang, P. (2008). Posterior probability measure for image matching. Pattern Recognition, 41(7), 2422-2433. https://doi.org/10.1016/j.patcog.2007.12.013

Template matching is one of the principle techniques in visual tracking. Various similarity measures have been developed to find the target
in an acquired image by matching with a template. However, mismatching or misidentification may sporadically... Read More about Posterior probability measure for image matching.

Experiencias de enseñanza a estudiantes de informática con discapacidad en Universidades del Reino Unido (2008)
Book Chapter
Tompsett, B. (2008). Experiencias de enseñanza a estudiantes de informática con discapacidad en Universidades del Reino Unido. In Tecnologias de la Informacion Y Las Comunicaciones en la Autonomia Personal, Dependencia y Accesibilidad (371 - 398). Fundacion Alfredo Brana Cursos Superiores de Verano en Galicia

El cambio en el entorno legal, social y educativo en el Reino Unido ha resultado en un incremento del número de estudiantes con discapacidad que entran en la enseñanza universitaria. Algunas materias han ido experimentando esta expansión en el número... Read More about Experiencias de enseñanza a estudiantes de informática con discapacidad en Universidades del Reino Unido.

Gyro-scope: An individual-based computer model to forecast gyrodactylid infections on fish hosts (2007)
Journal Article
Wright, H., Cable, J., Potter, R., & van Oosterhout, C. (2008). Gyro-scope: An individual-based computer model to forecast gyrodactylid infections on fish hosts. International journal for parasitology, 38(5), 541-548. https://doi.org/10.1016/j.ijpara.2007.09.016

Individual-based computer models (IBM) feature prominently in current theoretical ecology but have only been applied in a small number of parasitological studies. Here we designed an IBM to simulate the infection dynamics of gyrodactylid parasites an... Read More about Gyro-scope: An individual-based computer model to forecast gyrodactylid infections on fish hosts.

Estimation of end curvatures from planar point data (2007)
Book Chapter
Ma, X., & Cripps, R. J. (2007). Estimation of end curvatures from planar point data. In R. Martin, M. Sabin, & J. Winkler (Eds.), Mathematics of Surfaces XII; Lecture Notes in Computer Science (307-319). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-73843-5_19

Given a string of discrete planar points, the estimation of principal curvature vectors using circle fitting and Richardson’s extrapolation principle has been considered by several authors. However, these methods can not be directly applied to end po... Read More about Estimation of end curvatures from planar point data.

The role of active exploration of 3D face stimuli on recognition memory of facial information (2007)
Journal Article
Liu, C. H., Ward, J., & Markall, H. (2007). The role of active exploration of 3D face stimuli on recognition memory of facial information. Journal of Experimental Psychology: Human Perception and Performance, 33(4), 895-904. https://doi.org/10.1037/0096-1523.33.4.895

Research on face recognition has mainly relied on methods in which observers are relatively passive viewers of face stimuli. This study investigated whether active exploration of three-dimensional (3D) face stimuli could facilitate recognition memory... Read More about The role of active exploration of 3D face stimuli on recognition memory of facial information.

Personal internet security (2007)
Book Chapter
(2007). Personal internet security. In Personal internet security: 5th report of session 2006-07: Vol. 2 Evidence (438 - 439). HMSO

Evidence for House of Lords Select Committee on Science and Technology investigation into Personal Internet Security

Steering via the image in local, distributed and collaborative settings (2007)
Presentation / Conference Contribution
Wright, H., & Wood, J. D. Steering via the image in local, distributed and collaborative settings

Computational steering is a valuable mechanism for scientific investigation in which the parameters of a running program can be altered and the results visualized immediately. In a previous paper we put forward an architecture for computational steer... Read More about Steering via the image in local, distributed and collaborative settings.

Smooth piecewise polynomial blending operations for implicit shapes (2007)
Journal Article
Li, Q. (2007). Smooth piecewise polynomial blending operations for implicit shapes. Computer graphics forum : journal of the European Association for Computer Graphics, 26(2), 157-171. https://doi.org/10.1111/j.1467-8659.2007.01011.x

In this paper, we present a new set of blending operations for implicitly defined geometric shapes. The proposed shape operators are piecewise polynomial and blending range controllable, and can be constructed to any required degree of smoothness. Th... Read More about Smooth piecewise polynomial blending operations for implicit shapes.

Synthesis and analysis of temporal fault trees with PANDORA: the time of Priority AND gates (2007)
Journal Article
Walker, M., & Papadopoulos, Y. (2008). Synthesis and analysis of temporal fault trees with PANDORA: the time of Priority AND gates. Nonlinear Analysis: Hybrid Systems, 2(2), 368-382. https://doi.org/10.1016/j.nahs.2006.05.003

Classical Fault Tree Analysis (FTA) can determine the effects of combinations of failure events on a system but cannot capture the significance of the temporal order of events, which may be critical. In this paper, we propose an extension based on fo... Read More about Synthesis and analysis of temporal fault trees with PANDORA: the time of Priority AND gates.

Immersive visualization with automated collision detection for radiotherapy treatment planning (2007)
Journal Article
Ward, J. W., Phillips, R., Williams, T., Shang, C., Page, L., Prest, C., & Beavis, A. W. (2007). Immersive visualization with automated collision detection for radiotherapy treatment planning. Studies in health technology and informatics, 125, 491 - 496

Intensity modulated radiotherapy (IMRT) is a technique for treating cancer tumours using external delivery of radiation. To create a treatment plan the directions of the external radiation beams (typically 5 to 9) need to be specified. Normally the b... Read More about Immersive visualization with automated collision detection for radiotherapy treatment planning.

Radiotherapy training tools for yesterday’s future (2007)
Book Chapter
(2007). Radiotherapy training tools for yesterday’s future. In Imaging and Oncology (30 - 35). Deeson Group

Radiotherapy techniques have evolved rapidly in recent years. However, the uptake and clinical implementation of novel techniques, such as intensity modulated radiotherapy (IMRT), was slower than was initially anticipated. One of the reasons often gi... Read More about Radiotherapy training tools for yesterday’s future.

Fuzzy geometric object modelling (2007)
Book Chapter
Li, Q., & Guo, S. (2007). Fuzzy geometric object modelling. In Advances in Soft Computing; Fuzzy Information and Engineering (551-563). Spinger. https://doi.org/10.1007/978-3-540-71441-5_60

Fuzzy geometric object modelling has been one of the fundamental tasks in computer graphics. In this paper, we investigated and developed techniques for modelling fuzzy objects based on fuzzy set theory. With the proposed techniques any conventional... Read More about Fuzzy geometric object modelling.

Transfer between two- and three-dimensional representations of faces (2006)
Journal Article
Liu, C. H., Ward, J., & Young, A. W. (2006). Transfer between two- and three-dimensional representations of faces. Visual Cognition, 13(1), 51-64. https://doi.org/10.1080/13506280500143391

Because stereoscopic depth cues are not present in an ordinary photograph, matching a two-dimensional (2-D) photograph to a three-dimensional (3-D) face requires establishing a correspondence between information derived from monocular depth cues and... Read More about Transfer between two- and three-dimensional representations of faces.

Face recognition in pictures is affected by perspective transformation but not by the centre of projection (2006)
Journal Article
Liu, C. H., & Ward, J. (2006). Face recognition in pictures is affected by perspective transformation but not by the centre of projection. Perception, 35(12), 1637-1650. https://doi.org/10.1068/p5545

Recognition of unfamiliar faces is susceptible to image differences caused by angular sizes subtended from the face to the camera. Research on perception of cubes suggests that apparent distortions of a shape due to large camera angle are correctable... Read More about Face recognition in pictures is affected by perspective transformation but not by the centre of projection.