Displaying facial motions such as crying or laughing is difficult to achieve in real-time simulations and games. Not only because of the complicated simulation of the physical characteristics such as muscle motions or fluid simulations, but also because one needs to know how to control these motions on a higher level. In this thesis, we propose a method that is an extension of the MPEG-4 Facial...

This article demonstrates the applicability of the parallel-in-time method Parareal to the numerical solution of the Einstein gravity equations for the spherical collapse of a massless scalar field. To account for the shrinking of the spatial domain in time, a tailored load balancing scheme is proposed and compared to load balancing based on number of time steps alone. The performance of Parare...

Methods for designing a binaural listening environment are presented. The designed system is capable of creating a natural and realistic spatial sound simulation in real time. The sound sources of the system may be either normal audio inputs from the AD converter or built-in model-based sound synthesizers. The output is directed to headphone, single-pair or multichannel loudspeaker reproduction...

Modelling of mechatronical systems often leads to large DAEs with stiff components. In real time simulation neither implicit nor explicit methods can cope with such systems in an efficient way: explicit methods have to employ too small steps and implicit methods have to solve too large systems of equations. A solution of this general problem is to using a method that allows manipulations of the...

We present Pika, an implemented self-explanatory simulator that is more than 5000 times faster than SimGen Mk2 [ Forbus and Falkenhainer, 1992 ] , the previous state of the art. Like SimGen, Pika automatically prepares and runs a numeric simulation of a physical device speci ed as a particular instantiation of a general domain theory, and it is capable of explaining its reasoning and the simula...

In this paper a real time aircraft radar simulation is presented. The implemented algorithms in a 3D synthesized environment used to recreate the visualization of radar console are shown. Objects in a typical scene are represented with polygons. The lobe is discretized with rays and the radar display is recreated solving ray-polygon intersections (Ray Shooting) and mapping them on the screen. F...

car-following models are among the most important components of micro traffic flow simulation which is studiedby transportation experts to evaluate new applications of intelligent transportation systems. until now, several carfollowingmodels have been proposed. an obvious disadvantage of the former models is the great number of parameterswhich are difficult to calibrate. in this paper, a car-fo...

Displaying facial motions such as crying or laughing is difficult to achieve in real-time simulations and games. Not only because of the complicated simulation of the physical characteristics such as muscle motions or fluid simulations, but also because one needs to know how to control these motions on a higher level. In this thesis, we propose a method that is an extension of the MPEG-4 Facial...

This paper introduces UltraSim, a computer-based interactive simulator device designed to train physicians and technicians in medical diagnosis using ultrasound systems. Students using the system are able to learn how to identify and diagnose a wide range of medical cases by operating a simulated ultrasound machine on a mannequin, without any need for actual patients. This application relates t...