Information Visualisation 

Abstract: We describe a visualization method for general logic clauses as the first step of a visualization of logic programs. Since we think inclusion is essential to represent an outline of knowledge, we propose a method based on Euler diagrams to visualize inference rules represented as a set of general logic clauses which consist of literals with no variable. We develop a prototype system and show that complex rules which are hard to understand in text are easy to understand by diagrams.

Abstract: Tiling projectors provides an effective and easy option to increase screen space. Differences in projectors' components however contribute to non-uniformities in illumination and colour and detract from image quality and useability. In collaboration with JVC we developed a compact, high-resolution, uniform, tiled projection computer display based on a single common light source. A single set of red, green and blue dichroic filters provides the red, green and blue illuminations which are then guided by optical fibres to the projectors D-ILA (Direct Drive Image Light Amplifier) chips, JVC's projector technology. This results in a uniform illumination across the tiled projectors, a single colour temperature and a single colour balanced spectrum, with improved image uniformity. The display is driven by a graphics computer cluster running Linux and fitted with Nvidia graphics cards. We illustrate applications of this new display system with scientific applications in medical imaging and in radar imaging for archaeology.

Abstract: The transition from ephemeral, ceremonial art to more permanent acrylic-on-board paintings has made Australian Aboriginal art more accessible to the public than ever before. However, early examples contained secret/sacred motifs and stories - knowledge recorded in the paintings that was normally only made available to initiates. In turn, this prompted contemporary Australian Aboriginal artists to hide, camouflage or remove the sensitive material from their work. It is only recently, through inter-gender and inter-cultural collaborations between contemporary Indigenous Australian artists and non-indigenous ethnographers and anthropologists, that the full ramifications of this transition is becoming apparent. This paper discusses 3 case studies where the traditional expression of Kuruwarri, or Ancestral power, has been transformed through contemporary Australian Aboriginal women’s art.

Abstract: Radiation therapy of cancer necessitates accurate tumour targeting. Unfortunately, during the treatment the tumour and the related organs can undergo large displacement and deformation. Physicians need an estimation of these movements, for an adapted therapy. In this paper, we propose a methodology to provide physicians with reconstructed 4D (3D+time) CT scans, considered as essential data. Moreover we propose an interactive visualisation tool, permitting the exploration of reconstructed 4D CT scans as well as the generation of new CT scan sections in any direction of the 3D space.