Automated Markerless Extraction of Walking People Using Deformable Contour Models

We develop a new automated markerless motion capture system for the analysis of walking people. We employ global evidence gathering techniques guided by biomechanical analysis to robustly extract articulated motion. This forms a basis for new deformable contour models, using local image cues to capture shape and motion at a more detailed level. We extend the greedy snake formulation to include temporal constraints and occlusion modelling, increasing the capability of this technique when dealing with cluttered and self-occluding extraction targets. This approach is evaluated on a large database of indoor and outdoor video data, demonstrating fast and autonomous motion capture for walking people

A smart environment for biometric capture

The development of large scale biometric systems require experiments to be performed on large amounts of data. Existing capture systems are designed for fixed experiments and are not easily scalable. In this scenario even the addition of extra data is difficult. We developed a prototype biometric tunnel for the capture of non-contact biometrics. It is self contained and autonomous. Such a configuration is ideal for building access or deployment in secure environments. The tunnel captures cropped images of the subject's face and performs a 3D reconstruction of the person's motion which is used to extract gait information. Interaction between the various parts of the system is performed via the use of an agent framework. The design of this system is a trade-off between parallel and serial processing due to various hardware bottlenecks. When tested on a small population the extracted features have been shown to be potent for recognition. We currently achieve a moderate throughput of approximate 15 subjects an hour and hope to improve this in the future as the prototype becomes more complete

Never the gentleman: caste, class and the amateur myth in English first-class cricket, 1920s to the 1960s

© 2017 The British Society of Sports History. This article analyses the near-impossibility, for the duration of the amateur-professional divide, of cricketers born into working-class families being admitted to amateur status and, thus, to county captaincy, in the English first-class game. Its principal argument is that the hegemony achieved in the latter half of the nineteenth century by the English upper class (the aristocracy, major landowners and leaders of financial capital and their families) had one of its most visible manifestations in the culture of first-class cricket. The hegemony of this group (represented by the Marylebone Cricket Club) was sustained by a specific myth of amateurism that was rooted in caste-like social relations. By the late 1930s these relations had become unsustainable and hegemony was maintained by a subtle and unacknowledged switch to relations of class. The article charts this process, using four case studies of working-class professional cricketers, each of which brought the ideological reality of the amateur myth into sharp relief

Partial synchronization of non-identical chaotic systems via adaptive control, with applications to modelling coupled nonlinear systems

We consider the coupling of two nonidentical dynamical systems using an adaptive feedback linearization controller to achieve partial synchronization between the two systems. In addition we consider the case where an additional feedback signal exists between the two systems, which leads to bidirectional coupling. We demonstrate the stability of the adaptive controller, and use the example of coupling a Chua system with a Lorenz system, both exhibiting chaotic motion, as an example of the coupling technique. A feedback linearization controller is used to show the difference between unidirectional and bidirectional coupling. We observe that the adaptive controller converges to the feedback linearization controller in the steady state for the Chua– Lorenz example. Finally we comment on how this type of partial synchronization technique can be applied to modeling systems of coupled nonlinear subsystems. We show how such modeling can be achieved where the dynamics of one system is known only via experimental time series measurements

Hearing voices: A narrative analysis of the senate inquiry into the social and economic impacts of rural wind farms

This is a preliminary examination of the public debate initiated as a result of the rapid expansion of wind farms in rural spaces. The study is based on a sample of submissions to the Senate Inquiry, The Social and Economic Impact of Rural Wind Farms (2011). Using a narrative analysis (Riessman 2008), the study identifies the issues raised in support of, or opposition to, wind farm developments in south-west Victoria. Narratives of personal loss or personal gain and by extension, community gain, were used to frame the stories. The narratives of loss struggled to connect to a contemporary public discourse and were as a result marginalised. The narratives of gain were found to link more successfully to themes with national and international currency that allowed the narratives to assume a 'just' stance. This study may be useful for others who engage, communicate and negotiate in the context of further wind farm developments

The assembly of "normal" galaxies at z=7 probed by ALMA

We report new deep ALMA observations aimed at investigating the [CII]158um line and continuum emission in three spectroscopically confirmed Lyman Break Galaxies at 6.8<z<7.1, i.e. well within the re-ionization epoch. With Star Formation Rates of SFR ~ 5-15 Msun/yr these systems are much more representative of the high-z galaxy population than other systems targeted in the past by millimeter observations. For the galaxy with the deepest observation we detect [CII] emission at redshift z=7.107, fully consistent with the Lyalpha redshift, but spatially offset by 0.7" (4 kpc) from the optical emission. At the location of the optical emission, tracing both the Lyalpha line and the far-UV continuum, no [CII] emission is detected in any of the three galaxies, with 3sigma upper limits significantly lower than the [CII] emission observed in lower reshift galaxies. These results suggest that molecular clouds in the central parts of primordial galaxies are rapidly disrupted by stellar feedback. As a result, [CII] emission mostly arises from more external accreting/satellite clumps of neutral gas. These findings are in agreement with recent models of galaxy formation. Thermal far-infrared continuum is not detected in any of the three galaxies. However, the upper limits on the infrared-to-UV emission ratio do not exceed those derived in metal- and dust-poor galaxies.Comment: 15 pages, 9 figures, MNRAS in press, replaced with accepted versio

Information literacy outreach between universities and schools

Research shows that students starting higher education (HE) often lack an essential level of information literacy (IL). To address this issue, a growing number of Higher Education Institutions (HEIs) engage with schools through Information Literacy Outreach Programmes (ILOPs). This paper explores the forces and motivations behind how and why HEIs engage with schools through ILOPs, and discusses their impact on beneficiaries. Using a UK research-led university in the North of England as a single case study (hitherto XXXX), this research project adopted a qualitative case study approach and used Situational Analysis to explore and analyse the data collected. Data collection involved semi-structured interviews with key staff that participated in the IL outreach programme, and a model was developed to illustrate diagrammatically the key outcomes and phases of the IL Outreach Programme. Key findings revealed that the IL Outreach Programme at XXXX is an effective mechanism for bridging the social worlds of schools and HE; for creating partnerships and knowledge sharing between institutions; for breaking down social barriers and inequalities; and for developing critically aware, independent learners. The significance of this paper is that it helps us understand the impact of IL outreach programmes, and how such programmes provide schools and HEIs with an opportunity to work collaboratively and share knowledge and best practice. It also provides a valuable addition to IL literature