Visual Computing Day
Date:Friday 2 March 2007
Time:9:30 - 17:30
Place:Waterfront Museum, Oystermouth Road, Maritime Quarter, Swansea SA1 3RD, (01792) 638 950
(click here for more information)
AnnouncementThe Visual Computing Day aims to bring together researchers with a common interest in visual computing, i.e., visualization, computer graphics, computer vision, and related topics. This event will be held in an open atmosphere of presentations, informal discussions, open exchange, and personal interaction in order to foster future research directions and a sense of local community.
Note To Postgraduates:
Note To Departmental Faculty:
Note To Session Chairs:
A Note on Laptops:
|9:30 - 9:45||Welcome and Opening Remarks -Robert S. Laramee and Min Chen|
| Session 1 |
9:45 - 11:00
| Computer Graphics, |
Session Chair: David Chisnall
| Lyndsey Clarke
-Creating Caricatures with Free-Form Deformations
Abstract: This talk aims to discuss the 2D technique of Free-Form Deformation and its relation to my work. I will explain the technique in some detail, and I will attempt to describe some of the problems I have encountered whilst using this technique. I will also discuss how I am now going to try to solve some of the problems I have found so that I can hopefully achieve more effective caricatures as a result.
| Alfie Abdul Rahman
- How to Derive a Spectrum from an RGB Coordinate
Abstract: The RGB space is perhaps the most commonly implemented colour representation in rendering software and graphics platforms. However, the RGB representation presents us with several limitations. In this talk, we will examine a number of colour-to-spectrum conversion algorithms that can be implemented in a graphics system.
| Simon Walton
-Volume Deformation for Dummies
Abstract: In this talk, I will discuss a framework for intuitive deformation of volume data and provide implementation details of an interactive tool based on it. The talk will also include an overview of current GPU trends for those unfamiliar with the area.
|11:00 - 11:15||tea, coffee, and biscuits|
| Session 2 |
11:15 - 12:30
| Visualization |
Session Chair: Ben Spencer
| Owen Gilson
- VizThis: Rule-based Semantically Assisted
Abstract: When Information Visualization is considered as a mapping task, a number of advantages are gained, including automaticity (semantic assistance) and rule constraint. I will discuss the merits of this approach and give a demonstration of these concepts with the visualization of a real-life dataset using the VizThis software tool.
| Siti Zaleha
-Interaction and Interest Management in JACIE II
Abstract: Interaction and interest management are common issues in networked collaborative systems. Interaction management is concerned with the protocols that govern interactive activities among multiple users while interest management is concerned with the relevant-based data filtering. JACIE II has made the attempt to provide these features in the form of language constructs as a software development tool. In this talk, we examine the technical feasibility and usefulness of these features in JACIE II.
| Nicolas Roard
-A Reflective Architecture for Visualisation
Abstract: In this talk, I will describe a reflective distributed system used for visualising volume datasets. Specifically, I will show how the reflective nature of the system can help bringing self-tolerance and self-adaptibility.
| Harold Thimbleby
-Visualising for the Visual Computer
Abstract: This 3 slide talk will give a simple demonstration of the importance of getting visualisation right from amongst seemingly equivalent choices.
|12:30 - 13:50|| Lunch at China China, Unit 18 Little Wind St.,
Swansea, SA1 1ED, 01792 643 400 |
Note to Bob -Reservation made with Jonny Chang
|13:50 - 14:00||Group Photo|
| Session 3 |
14:00 - 15:30
| Spatial Data Structures and Types |
Session Chair: Lyndsey Clarke
| Ravi P Kammaje
-Restricted BSP Tree for Ray Shooting.
Abstract: A kd tree, the current state of the art for ray shooting, is a BSP tree that has splitting planes that are axis aligned. A Restricted BSP tree is a BSP tree that splits the geometry on a set number of planes. Unlike the kd-tree, it can have more than three split planes that are arbitrary and unlike a BSP tree these planes are not derived from the geometry itself. We aim to demonstrate that such a structure would result in a more efficient space partitioning method and could result in a more efficient method for ray shooting.
| Ken Johnson
- Theory of Spatial Data Types and Constructive
Abstract: Spatial data types model data in space using algebras of total functions. We develop a general theory of spatial data types with Constructive Volume Geometry as our primary motivation.
| Ben Spencer
- Hierarchical Photon Mapping
Abstract: Photon mapping is an efficient method for producing high-quality, photo realistic images with full global illumination. In this presentation we will discuss a more accurate approach to final gathering using the photon map based upon hierarchical evaluation of the photons over each surface. We will look at how the technique may be used to reduce variance when sampling diffuse and glossy specular BRDFs in complex lighting environments. We will also show how such an implementation may be extended to represent illumination from environment maps, giving examples and analysis of the algorithm at work under these conditions.
| Rudy Hashim
-Are Visual Signatures Technically Feasible?
Abstract: We will discuss the results of two user studies that examined the effectiveness of different abstract visual representation and how ordinary users can learn to recognize visual signatures of different motion events.
|15:30 - 15:45||tea, coffee, and cake|
| Session 4 |
15:45 - 17:15
| Special Topics in Visual Computing |
Session Chair: Min Chen
| David Chisnall
-The Future of Virtualisation
Abstract: In the last year, virtual machines have become increasingly common, whether they are full-machine virtualisation environments such as Xen or more abstract systems such as the JVM or .NET CLR. This talk will look at some future directions for the technologies, and how they will fit in with evolving hardware.
| Chuck Hansen
-Is Seeing Really Believing?
Abstract: Direct volume rendering has proven to be an effective and flexible visualization method for interactive exploration and analysis of 3D scalar fields. At least a great deal of research has examined many aspects of volume rendering. However, while volume rendering is used in specific applications, why has it not been more widely adapted by the medical community? One reason is that volume rendering, by definition, takes the 3D data and generates an image as the result. This is powerful for exploring a dataset but is it sufficient for analysis? In this talk I will explore the idea of coupling volume rendering with segmentation for the analysis for 3D scalar fields with a particular emphasis on medical applications.
| Panel Discussion
-What are the top challenges facing a PhD Candidate
at Swansea University? |
Panel Chair: Robert S. Laramee
1. David Chisnall
2. Alfie Abdul Rahman (Alfie)
3. Darren Cosker
4. Mark Jones
Each member of this panel will present 1-5 of the most pressing problems and challenges for completing a PhD in Visual Computing at Swansea University. Possible solutions to these problems will also be addressed.
|17:15 - 17:30||Closing Remarks -Robert S. Laramee and Min Chen|