ORCID Profile
0000-0002-0325-882X
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Pensionsversicherungsanstalt
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Maritime Archaeology | Archaeology | Interactive Media | Film, Television and Digital Media | Electronic Media Art
Understanding Europe's Past | Understanding Australia's Past | The Creative Arts (incl. Graphics and Craft) | Expanding Knowledge in History and Archaeology |
Publisher: Springer Science and Business Media LLC
Date: 20-03-2013
Publisher: Elsevier BV
Date: 02-2020
Publisher: ACM
Date: 19-11-2013
Publisher: Informa UK Limited
Date: 18-12-2015
Publisher: SPIE
Date: 04-02-2010
DOI: 10.1117/12.840153
Publisher: Elsevier BV
Date: 10-2011
Publisher: Elsevier BV
Date: 08-2015
Publisher: IEEE
Date: 10-2010
Publisher: Global Science & Technology Forum (GSTF)
Date: 13-04-2015
Publisher: Wiley
Date: 03-2016
DOI: 10.1111/SMS.12668
Abstract: Sidestepping in response to unplanned stimuli is a high-risk maneuver for anterior cruciate ligament (ACL) injuries. Yet, differences in body reorientation strategies between high- and low-level soccer players prior to sidestepping in response to quasi-game-realistic vs non-game-realistic stimuli, remain unknown. Fifteen high-level (semi-professional) and 15 low-level (amateur) soccer players responded to a quasi-game-realistic one-defender scenario (1DS) and two-defender scenario (2DS), and non-game-realistic arrow-planned condition (AP) and arrow-unplanned condition (AUNP). The AP, 1DS, 2DS to AUNP represented increasing time constraints to sidestep. Selected biomechanics from the penultimate step to foot-off were assessed using a mixed-model (stimuli × skill) ANOVA (P < 0.05). Step length decreased in the defender scenarios compared with the arrow conditions. Support foot placement increased laterally, away from mid-pelvis, with increasing temporal constraints. Greater trunk lateral flexion in the 1DS, 2DS, and AUNP has been associated with ACL injury onsets. Higher level players pushed off closer to their pelvic midline at initial foot contact in the 2DS especially. Higher level perception of game-realistic visual information could have contributed to this safer neuromuscular strategy that, when understood better, could potentially be trained in lower level players to reduce ACL injury risk associated with dangerous sidestepping postures.
Publisher: Elsevier BV
Date: 04-2005
Publisher: Elsevier BV
Date: 03-2020
DOI: 10.1016/J.PLREV.2020.05.004
Abstract: The assumption that during cortical embryogenesis neurons and synaptic connections are selected to form an ensemble maximising synchronous oscillation explains mesoscopic cortical development, and a mechanism for cortical information processing is implied by consistency with the Free Energy Principle and Dynamic Logic. A heteroclinic network emerges, with stable and unstable fixed points of oscillation corresponding to activity in symmetrically connected, versus asymmetrically connected, sets of neurons. Simulations of growth explain a wide range of anatomical observations for columnar and non-columnar cortex, superficial patch connections, and the organization and dynamic interactions of neurone response properties. An antenatal scaffold is created, upon which postnatal learning can establish continuously ordered neuronal representations, permitting matching of co-synchronous fields in multiple cortical areas to solve optimization problems as in Dynamic Logic. Fast synaptic competition partitions equilibria, minimizing "the curse of dimensionality", while perturbations between imperfectly partitioned synchronous fields, under internal reinforcement, enable the cortex to become adaptively self-directed. As learning progresses variational free energy is minimized and entropy bounded.
Publisher: Cambridge University Press (CUP)
Date: 2006
DOI: 10.1071/AS06009
Abstract: We present a new, three-dimensional (3D) plotting library with advanced features, and support for standard and enhanced display devices. The library — s2plot — is written in c and can be used by c , c++ , and fortran programs on GNU/Linux and Apple/OSX systems. s2plot draws objects in a 3D ( x , y , z ) Cartesian space and the user interactively controls how this space is rendered at run time. With a pgplot -inspired interface, s2plot provides astronomers with elegant techniques for displaying and exploring 3D data sets directly from their program code, and the potential to use stereoscopic and dome display devices. The s2plot architecture supports dynamic geometry and can be used to plot time-evolving data sets, such as might be produced by simulation codes. In this paper, we introduce s2plot to the astronomical community, describe its potential applications, and present some ex le uses of the library.
Publisher: Springer Netherlands
Date: 2008
Publisher: Elsevier BV
Date: 04-2004
Publisher: Cambridge University Press (CUP)
Date: 2006
DOI: 10.1071/AS05034
Abstract: Despite the large budgets spent annually on astronomical research equipment such as telescopes, instruments, and supercomputers, the general trend is to analyze and view the resulting datasets using small, two-dimensional displays. We report here on alternative advanced image displays, with an emphasis on displays that we have constructed, including stereoscopic projection, multiple projector tiled displays, and a digital dome. These displays can provide astronomers with new ways of exploring the terabyte and petabyte datasets that are now regularly being produced from all-sky surveys, high-resolution computer simulations, and Virtual Observatory projects. We also present a summary of the Advanced Image Displays for Astronomy (AIDA) survey which we conducted from 2005 March–May, in order to raise some issues pertinent to the current and future level of use of advanced image displays.
Publisher: Frontiers Media SA
Date: 2013
Publisher: Springer Science and Business Media LLC
Date: 19-04-2008
Publisher: Springer Netherlands
Date: 2015
Publisher: Frontiers Media SA
Date: 09-12-2016
Publisher: Elsevier BV
Date: 09-2006
DOI: 10.1016/J.VISRES.2006.02.017
Abstract: We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable state in which all synapses are either saturated, or have minimum pre ost-synaptic coincidence. The most stable configuration gives rise to anatomically realistic "local maps", each of macro-columnar size, and each organized as Mobius projections of retinotopic space. A tiling of V1, constructed of approximately mirror-image reflections of each local map by its neighbors is formed, accounting for orientation-preference singularities, linear zones, and saddle points-with each map linked by connections between sites of common orientation preference. Ocular dominance columns are partly explained as a special case of the same process. The occurrence of direction preference fractures always in odd numbers around singularities is a specific feature explained by the Mobius configuration of the local map. Effects of stimulus velocity, orientation relative to direction of motion, and extension, upon orientation preference, which are not accounted for by spatial filtering, are explained by interactions between the classic receptive field and global V1.
Publisher: Oncology Nursing Society (ONS)
Date: 26-12-2014
Publisher: Wiley
Date: 29-07-2013
DOI: 10.1111/CGF.12163
Publisher: Springer Science and Business Media LLC
Date: 04-07-2017
Publisher: SPIE
Date: 16-09-2004
DOI: 10.1117/12.551030
Publisher: Informa UK Limited
Date: 19-11-2019
DOI: 10.1080/02640414.2018.1545276
Abstract: Increasing knee stability via appropriate muscle activation could reduce anterior cruciate ligament (ACL) injury risk during unplanned sidestepping. High-level athletes may activate their knee muscles differently from low-level athletes when responding to quasi-game realistic versus non game-realistic stimuli. Eleven high-level and 10 low-level soccer players responded to a non game-realistic arrow-planned condition (AP), a quasi game-realistic one-defender scenario (1DS) and two-defender scenario (2DS), and an arrow-unplanned condition (AUNP), that imposed increasing time constraints to sidestep. Activation from eight knee muscles during sidestepping was measured during pre-contact and weight-acceptance. Knee flexor-extensor co-activation ratios were established. Muscle activation levels increased by approximately 27% solely in the 1DS in both sidestepping phases. In the 2DS, the shift from a flexor dominant co-activation strategy in pre-contact toward extensor dominance in weight-acceptance commenced earlier for the high-level players. Quasi game-realistic information allowed for anticipatory increases in knee muscle activation regardless of expertise levels but only when the time demands to respond were low (1DS). High-level players were better at interpreting complex game-realistic information (2DS) to activate their knee extensors earlier in preparation for single-leg landing during weight-acceptance.
Publisher: IEEE
Date: 12-2014
Publisher: Elsevier BV
Date: 07-2020
Publisher: ACM
Date: 29-11-2005
Publisher: Elsevier BV
Date: 02-2009
Publisher: Springer International Publishing
Date: 2019
Publisher: Springer Berlin Heidelberg
Date: 2013
Publisher: Global Science & Technology Forum (GSTF)
Date: 22-04-2013
Publisher: Elsevier BV
Date: 12-2014
Publisher: Frontiers Media SA
Date: 31-10-2014
Publisher: Cambridge University Press (CUP)
Date: 2003
DOI: 10.1071/AS03039
Abstract: We describe the first distributed data implementation of the perspective shear-warp volume rendering algorithm and explore its applications to large astronomical data cubes and simulation realisations. Our system distributes sub-volumes of 3-dimensional images to leaf nodes of a Beowulf-class cluster, where the rendering takes place. Junction nodes composite the sub-volume renderings together and pass the combined images upwards for further compositing or display. We demonstrate that our system out-performs other software solutions and can render a 'worst-case' 512 × 512 × 512 data volume in less than four seconds using 16 rendering and 15 compositing nodes. Our system also performs very well compared with much more expensive hardware systems. With appropriate commodity hardware, such as Swinburne's Virtual Reality Theatre or a 3Dlabs Wildcat graphics card, stereoscopic display is possible.
Publisher: Wiley
Date: 24-05-2006
Publisher: Elsevier BV
Date: 02-2006
Publisher: Elsevier BV
Date: 12-2002
Publisher: International Union of Crystallography (IUCr)
Date: 06-2000
Publisher: American Society for Clinical Investigation
Date: 15-04-2022
DOI: 10.1172/JCI151817
Publisher: SAGE Publications
Date: 11-2021
DOI: 10.1177/17298814211059313
Abstract: Recent advancements in deep learning require a large amount of the annotated training data containing various terms and conditions of the environment. Thus, developing and testing algorithms for the navigation of mobile robots can be expensive and time-consuming. Motivated by the aforementioned problems, this article presents a photorealistic simulator for the computer vision community working with omnidirectional vision systems. Built using unity, the simulator integrates sensors, mobile robots, and elements of the indoor environment and allows one to generate synthetic photorealistic data sets with automatic ground truth annotations. With the aid of the proposed simulator, two practical applications are studied, namely extrinsic calibration of the vision system and three-dimensional reconstruction of the indoor environment. For the proposed calibration and reconstruction techniques, the processes themselves are simple, robust, and accurate. Proposed methods are evaluated experimentally with data generated by the simulator. The proposed simulator and supporting materials are available online: www.ilabit.org .
Publisher: Springer Berlin Heidelberg
Date: 2014
Publisher: Springer Science and Business Media LLC
Date: 19-07-2016
Publisher: Elsevier BV
Date: 08-2006
Publisher: Springer Berlin Heidelberg
Date: 2014
Publisher: Informa UK Limited
Date: 03-2013
DOI: 10.1080/00222895.2012.760512
Abstract: The authors aimed to identify differences in (a) visual search and (b) reaction time when athletes sidestepped to intercept 2D versus 3D videoed opponents. They hypothesized that participants would (a) fixate on different parts of the opponent's body and (b) react quicker when responding to the 3D versus 2D opponent due to the added depth cues. A customized integrated stereoscopic system projected the video stimuli and synchronously recorded the gaze and motor behaviors of 10 men when they responded to two- (2D) and three-dimensional (3D) opponents. The number and duration of gaze fixations were coded according to locations on the opponent's body (head, shoulders, arms, trunk, pelvis, legs) or otherwise (other). Mediolateral pelvic movement was used to infer reaction time. Participants spent 16% less time fixating on the trunk and 23% more time outside the 3D opponent's body compared with the 2D stimulus. No reaction time differences were found. Although participants fixated less on the 3D opponent's body and, by inference, invested less perceptual processing toward interpreting the opponent's movements compared with the 2D condition, they performed the interception task equally fast in both conditions. Three-dimensional depth cues may provide more meaningful information per fixation for successful task performance.
Publisher: EAGE Publications BV
Date: 06-2015
Publisher: Global Science and Technology Forum
Date: 07-2013
Publisher: Springer Berlin Heidelberg
Date: 2004
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 09-2013
Publisher: Oxford University Press (OUP)
Date: 1988
DOI: 10.1093/IJE/17.2.325
Abstract: The seasonal variation of coronary heart disease mortality rates in New Zealand is analysed by age, sex and race using monthly national mortality data for the period 1970-83. A 35% variation from the winter peak to summer low is found in the crude mortality rate, but the size of the seasonal variation is age-dependent, being more pronounced in the elderly, and more so in males than in females. The hypothesis that respiratory infections are linked to coronary heart disease, and that their seasonal occurrence explains the seasonal variation in coronary rates, is examined by an analysis of the association between coronary disease and respiratory disease mortality rates. By partial correlation analysis and by examining the residual correlation after filtering the seasonal variation from both series, it is suggested that the season acts as a confounding factor to cause an apparent association between the two rates. After controlling for season there is a tenuous relationship, but it is apparent only in the elderly.
Publisher: American Physical Society (APS)
Date: 09-1998
Publisher: ACM
Date: 12-12-2011
Publisher: IEEE
Date: 12-2014
Publisher: World Scientific Pub Co Pte Lt
Date: 2019
DOI: 10.1142/S0218127419300015
Abstract: The attraction basin of hidden attractors does not intersect with small neighborhoods of any equilibrium point. To the best of our knowledge this property has not been explored using realtime interactive three-dimensions graphics. Aided by advanced computer graphic analysis, in this paper, we explore this characteristic of a particular nonlinear system with very rich and unusual dynamics, the Rabinovich–Fabrikant system. It is shown that there exists a neighborhood of one of the unstable equilibria within which the initial conditions do not lead to the considered hidden chaotic attractor, but to one of the stable equilibria or are ergent. The trajectories starting from any neighborhood of the other unstable equilibria are attracted either by the stable equilibria, or are ergent.
Start Date: 2015
End Date: 2015
Funder: Australian Research Council
View Funded ActivityStart Date: 2014
End Date: 2017
Funder: Australian Research Council
View Funded ActivityStart Date: 2013
End Date: 2016
Funder: Australian Research Council
View Funded ActivityStart Date: 03-2014
End Date: 12-2019
Amount: $489,367.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2015
End Date: 05-2016
Amount: $220,000.00
Funder: Australian Research Council
View Funded Activity