Browsing EG UK Theory and Practice of Computer Graphics 2009 by Title
Now showing items 17-33 of 33
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A Haptic System for Drilling into Volume Data with Polygonal Tools
(The Eurographics Association, 2009)With the developments of volume visualization technology for complex data sets comes new challenges in terms of user interaction and information extraction. Volume haptics has proven itself to be an effective way of ... -
Hardware Accelerated Shaders Using FPGAs
(The Eurographics Association, 2009)We demonstrate that Field Programable Gate Arrays (FPGAs) can be used to accelerate shading of surfaces for production quality rendering (a task standard interactive graphics hardware is generally ill-suited to) by allowing ... -
Higher Dimensional Vector Field Visualization: A Survey
(The Eurographics Association, 2009)Vector field visualization research has evolved very rapidly over the last two decades. There is growing consensus amongst the research community that the challenge of two-dimensional vector field visualization is virtually ... -
An Improved Precise Multi-contact Haptic Visualization
(The Eurographics Association, 2009)We present an improved multi-contact haptic visualization method based on the Spatialized Normal Cone Hier- archies (SNCH). Though this approach is not entirely new, we have implemented several improvements in order to ... -
Influencing User Attention Using Real-Time Stylised Rendering
(The Eurographics Association, 2009)In this paper, we present a series of experiments that were conducted to further understand how using adaptive levels of artistic abstraction within an interactive 3D scene can influence user gaze behaviour. We found that ... -
Interactive Relighting for Stage Use
(The Eurographics Association, 2009)Re-lighting by combining images taken under known lighting conditions to synthesise new lighting configurations is a simple, but powerful technique capable of producing impressive results. However it has found little ... -
Markerless Visual Human Movement Tracking for HCI: What Frequency?
(The Eurographics Association, 2009)This paper tries to establish a minimal tracking frequency limit for visual human movement tracking algorithms that intend to be useful for the realization of some kind Human-Computer-Interaction (HCI) metaphor. More ... -
Multimodal Visualization with Interactive Closeups
(The Eurographics Association, 2009)Abstract Closeups are used in illustrations to provide detailed views on regions of interest. They are integrated into the rendering of the whole structure in order to reveal their spatial context. In this paper we present ... -
Near-correct Ocular Accommodation Responses to a 3d Display, Using Multiple Image Planes and Depth Filtering
(The Eurographics Association, 2009)Conventional stereo displays provide incorrect focus cues because the image is presented on a single surface. This is known to cause a number of aversive symptoms in users, including fatigue and discomfort. Multiple-focal-plane ... -
Object Interaction Using Tabulated Spheres Subsets
(The Eurographics Association, 2009)Tabulated Sphere Subsets (TSSs) provide a fast way to approximate collision tests between objects whose motion is constrained. A TSS is a subset of a set of spheres that approximate the shape of two objects that might ... -
Real-time Rendering of Deformable Translucent Objects
(The Eurographics Association, 2009)This paper introduces an efficient real-time shading model to simulate light transport in translucent materials. In this work no pre-processing step is needed, allowing us to deform translucent objects at interactive rates. ... -
Simulation of X-ray Attenuation on the GPU
(The Eurographics Association, 2009)In this paper, we propose to take advantage of computer graphics hardware to achieve an accelerated simulation of X-ray transmission imaging, and we compare results with a fast and robust software-only implementation. The ... -
Texture Classification using Fractal Geometry for the Diagnosis of Skin Cancers
(The Eurographics Association, 2009)We present an approach to object detection and recognition in a digital image using a classification method that is based on the application of a set of features that include fractal parameters such as the Lacunarity and ... -
Touching The Invisible - Molecular Haptics
(The Eurographics Association, 2009)Novel, simple, cost-effective applications combining haptics and computer graphics for the study of key chemical concepts such as reactivity and periodicity at AS/A-level and undergraduate level are described. -
Towards Object Recognition using HDR Video, Stereoscopic Depth Information and SIFT
(The Eurographics Association, 2009)In this paper we propose a framework that will recognise objects from a moving platform using scale invariant features, high dynamic range (HDR) video and stereoscopic depth information. The paper focuses on initial work ... -
Uncertain Flow Visualization using LIC
(The Eurographics Association, 2009)In this paper we look at the Line Integral Convolution method for flow visualization and ways in which this can be applied to the visualization of two dimensional, steady flow fields in the presence of uncertainty. To ... -
Visual Representation of Multiple Associations in Data using Constrained Graph Layout
(The Eurographics Association, 2009)This paper presents a new approach for simultaneously visualizing multiple exclusive associations, defined on the same dataset, using constrained graph layout. We work with two different associations at a time, which can ...