Displays supporting stereoscopic and head-coupled motion parallax can enhance human perception of containing 3D surfaces and 3D networks but less for so volumetric data. Volumetric data is characterized by a heavy presence of transparency, occlusion and highly ambiguous spatial structure. There are many different rendering and visualization algorithms and interactive techniques that enhance per...

Volumetric energy backprojection captures the effects of myriad physical processes including global illumination and reconstruction. We present a method to perform efficient volumetric backprojection in software. We develop a new method for global illumination based on iterated volumetric backprojection. We demonstrate how computed tomography and visible light reconstruction can be implemented ...

Laser pulse heating of solid surface and entropy generation during the heating process are considered. Time exponentially decaying pulse is accommodated in the analysis and the laser pulse parameter (b1/b2) resulting in minimum entropy generation rate is computed. Analytical solutions for temperature rise are presented and volumetric entropy generation rate is formulated. Two laser pulses resul...

Let Q = fx j s i (x) 0; i = 1; : : : ; kg, where s i (x) = a T i x ?x T Q i x ?c i , and Q i is an n n positive semideenite matrix. We prove that the volumetric and combined volumetric-logarithmic barriers for Q are O(p kn) and O(p kn) self-concordant, respectively. Our analysis uses the semideenite programming (SDP) representation for the convex quadratic constraints deening Q, and our earlier...

Ambient art is the aesthetic presentation of information, using artistic techniques to achieve a pleasing image that also contains hidden depths, where exposure to it over time allows a viewer to understand something about the information sources that it represents. This paper reviews the artistic and computational background of ambient systems, and presents two case studies of systems develope...

The specific surface area of a powder is determined by physical adsorption of a gas on the surface of the solid and by calculating the amount of adsorbate gas corresponding to a monomolecular layer on the surface. Physical adsorption results from relatively weak forces (van der Waals forces) between the adsorbate gas molecules and the adsorbent surface of the test powder. The determination is u...

This paper provides an overview of the main developments of the Tech United Eindhoven RoboCup@Home team. The main research effort of the past year has focused on developing a global, volumetric, object-oriented world model. This world model should replace all world representations that are commonly present in an architecture, e.g., for navigation and manipulation. As a result, these modules can...

Currently, the two main approaches to realistic facial animation are 1) blendshape models and 2) physics-based simulation. Blendshapes are fast and directly controllable, but it is not easy to incorporate features such as dynamics, collision resolution, or incompressibility of the flesh. Physics-based methods can deliver these effects automatically, but modeling of muscles, bones, and other ana...

In this paper we present KOALA, a system realizing shared displays for promoting informal cooperation. We report the results from an exploratory study of real world usage of KOALA that we have conducted to understand how shared display systems are used and how their usage patterns might differ from their paperbased counterparts. This study was conducted with the aim of informing the design of a...

In this paper a novel algorithm for lossless compression of volumetric data is presented. This algorithm is based on our previously presented algorithm for lossless compression of volumetric data, which uses quadtree encoding of slices of data for discovering the coherence and similarities between consecutive slices. By exploiting these properties of the data, the algorithm can efficiently comp...