19th BMVA Computer Vision Summer School

bmva2014.jpegBMVA Computer Vision Summer School 2014 was successfully hosted at Swansea from 30 June to 4 July 2014. A total of 67 delegates from 14 different countries ( 21 from outside UK) were attending the 19th edition of this summer school. 17 speakers from both academia and industry delivered 19 lectures and 2 lab sessions.

Click here to visit the summer school website.

RIVIC Graduate School 2014

Tim Weyrich talk at RIVIC graduate school 2014, Swansea

Tim Weyrich talk at RIVIC graduate school 2014, Swansea

The fifth annual RIVIC Graduate School was held 16th-17th June 2014 in Swansea, setting a new record of 37 talks by students and researchers, with 3 keynote talks from Majid Mirmehdi (Bristol), Tim Weyrich (UCL) and Kurt Debattista (Warwick). The event was arranged over two days in sunny Swansea with a wide range of talks in the topics of Vision, Graphics and Visualisation (Visual Computing). Our conference dinner was held in the Grape and Olive, the 27th floor of the Meridian tower offering superb views over Swansea bay, the city and local countryside.

The RIVIC Graduate School is an excellent opportunity for researchers across the RIVIC sites (Swansea, Aberystwyth, Bangor and Cardiff) to meet up, discuss research projects, seek ideas and solutions, collaborate and generally see the active and varied Visual Computing research ongoing across Wales. We also have keynote talks from excellent researchers, including this year from Majid Mirmehdi (Bristol), Tim Weyrich (UCL) and Kurt Debattista (Warwick).

Majid Mirmehdi (Bristol) spoke about the SPHERE project. In particular he gave a case study of using low cost consumer devices such as Kinect to measure progression of rehabilitation. The ultimate aim is to instrument houses with several sensors and video systems to monitor the health of occupants. He also gave some real-time automotive applications such as road sign detection and in car human/car interaction detection.

Tim Weyrich’s (UCL) talk “Bespoke Computer Graphics Systems for Cultural Heritage Applications” demonstrated how off-the-shelf devices can be re-engineered and integrated with novel software and algorithms to provide robust solutions to real-world heritage problems such as matching up smashed mosaic tiles to aid reconstruction and restoration work.

Kurt Debattista’s (Warwick) talk “High-Fidelity Graphics” covered the past, current and future challenges for high quality global illumination rendering in terms of usability, computational load and adoption. Kurt contextualised his work with industrial experience in application areas of car model rendering (with Land Rover) and architectural applications (with Arup).

About EuroVis 2014 at Swansea University

Eurovis 2014EuroVis 2014, hosted by Swansea University in the UK, was the
16th annual visualization gathering organized by the EuroGraphics Working
Group on Data Visualization and supported by the Visualization and Graphics
Technical Committee (VGTC). EuroVis has been a EuroGraphics and VGTC
co-supported international visualization symposium held in Europe annually
since 1999. In 2012 EuroVis graduated to a conference. The conference
attracted 258 delegate from 25 countries throughout the world.

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Subject specific 3D human pose interaction classification

Screen Shot 2014-05-09 at 10.16.44In this work, we investigate whether it is possible to distinguish conversational interac- tions from observing human motion alone, in particular subject specific gestures in 3D. We adopt Kinect sensors to obtain 3D displacement and velocity measurements, followed by wavelet decomposition to extract low level temporal features. These features are then generalized to form a visual vocabulary that can be further generalized to a set of topics from temporal distributions of visual vocabulary. A subject specific supervised learning approach based on Random Forests is used to classify the testing sequences to seven dif- ferent conversational scenarios. These conversational scenarios concerned in this work have rather subtle differences among them. Unlike typical action or event recognition, each interaction in our case contain many instances of primitive motions and actions, many of which are shared among different conversation scenarios. That is the interactions we are concerned with are not micro or instant events, such as hugging and high-five, but rather interactions over a period of time that consists rather similar individual motions, micro actions and interactions. We believe this is among one of the first work that is devoted to subject specific conversational interaction classification using 3D pose features and to show this task is indeed possible.

pdficon_largeJ. Deng, X. Xie, and B. Daubney, A bag of words approach to subject specific 3D human pose interaction classification with random decision forests, Graphical Models, Volume 76, Issue 3, Pages 162–171, May 2014.

More details can be found at the Swansea Vision website.

Graph Drawings: as created by users (or ‘Doing the Future Work’), Helen Purchase, Glasgow

Here’s an upcoming seminar at 2pm in Robert Recorde room, Thursday May 1st.

Much effort has been spent on designing algorithms for the automatic layout of graphs. Typically, the worth of these algorithms has been determined by their computational efficiency and by the extent to which the graph drawings they produce conform to pre-defined “aesthetics” (for example, minimising the number of edge crosses and edge bends, or maximising symmetry).

Prior experimental work has focussed on the extent to which the layout of a graph drawing assists with the comprehension of the embodied relational information. This seminar presents an alternate approach to determining the relative worth of graph layout aesthetics, based on how users create their own graph drawings. The seminar will present the results of both the published research experiments, as well as two follow-up studies.

Dr Helen Purchase is Senior Lecturer in the School of Computing Science at the University of Glasgow. She has worked in the area of empirical studies of graph layout for several years, and also has research interests in visual aesthetics, task-based empirical design, collaborative learning in higher education, and sketch tools for design. She has recently written a book on Empirical methods for HCI research.

Helen Purchase Seminar SlidesA healthy critical attitude: Revisiting the results of a graph drawing study, Journal of Graph Algorithms and Applications, vol. 18, no. 2, pp. 281-311 (2014) DOI: 10.7155/jgaa.00323

Best of 2013 for Photon Parameterisation for Robust Relaxation Constraints

Best of 2013Photon Parameterisation for Robust Relaxation Constraints has been selected as a notable article in computing in 2013. Computing Reviews’ Best of 2013 list consists of book and article nominations from reviewers, CR category editors, the editors in chief of journals, and others in the computing community. The complete list is here. The paper also won best paper at Eurographics 2013.

RIVIC Graduate School 2014

RIVIC logo
Graduate School 2014, Swansea
Robert Recorde Room
Faraday Building
Map of exact location

Organiser: Mark W. Jones, Swansea
Programme: Graduate School 2014
Parking: Contact me with your car make, colour and registration number to reserve a space in an onsite pay and display car park just inside the entrance (you still have to pay). Alternatively, the light grey car park on this link is usually free out of term time, and a short walk from the university. It is accessed by turning right into Brynmill Lane, and going right around the roundabout to get back to the Mumbles Road, but on the correct side to access it. You know its free if there is nobody there to take money off you (otherwise £3.50 for the day).
Reserved spaces in the onsite pay and display have been confirmed for, Majid Mirmehdi, Ralph Martin, David Marshall, Jonathan Slade, David Pickup, Kurt Debattista. For others requiring spaces – please use either the light grey car park, or try the pay and display (although space is not guaranteed).
Arrival Information
Sunday arrivals go to Marriott Hotel (Map of exact location) (Bed and breakfast basis paid for, rooms will be reserved in your name – please notify us of any changes in advance to save money). I suggest groups book taxis from Marriott to University (or walk along the beach) as buses in Swansea are too expensive.

Monday arrivals go to Marriott Hotel (Map of exact location) either before lunch or after talks (Bed and breakfast basis paid for, rooms will be reserved in your name – please notify us of any changes in advance to save money). I suggest groups book taxis from Marriott to University (or walk along the beach) as buses in Swansea are too expensive.

Dinner will be in the Grape and Olive. Map of exact location (the entrance is one closest to the Marriott – once inside walk up the 2-3 wooden steps and take the lift to the top floor).

Call for speakers issued (2014-04-01)
We invite talks from PhDs, RAs and academic staff across the four Welsh institutions (and beyond). This provides a great training opportunity for PhD students. Interesting problems, discussions and collaborations arise during these events for all staff and students taking part.

Confirmed guest speakers (as of 2014-05-22)
Presentations will be 40 minutes including questions
Kurt Debattista (Warwick), High Fidelity Graphics
Majid Mirmehdi (Bristol)
Tim Weyrich (UCL), Bespoke Computer Graphics Systems for Cultural Heritage Applications

Confirmed RIVIC speakers and participants (as of 2014-06-03)
Presentations will be 15 minutes maximum including questions.
See programme: Graduate School 2014

Arron Lacey successfully defends MSc by Research viva

Congratulations to Arron Lacey who successfully defended his MSc by Research thesis, titled “Supervised Machine Learning Techniques in Bioinformatics: Protein Classification“.

Xianghua Xie was the supervisor, the two external examiners were Reyer Zwiggelaar (Aberystwyth) and Yulia Hicks (Cardiff), and Parisa Eslambolchilar was the viva chair.