Implementation of a unified userspace time handling library under the Linux OS

An appropriate assessment of end-to-end network performance presumes highly efficient time tracking and measurement with precise time control of the stopping and resuming of program operation. In this paper, a novel approach to solving the problems of highly efficient and precise time measurements on PC-platforms and on ARM-architectures is proposed. A new unified High Performance Timer and a corresponding software library offer a unified interface to the known time counters and automatically identify the fastest and most reliable time source, available in the user space of a computing system. The research is focused on developing an approach of unified time acquisition from the PC hardware and accordingly substituting the common way of getting the time value through Linux system calls. The presented approach provides a much faster means of obtaining the time values with a nanosecond precision than by using conventional means. Moreover, it is capable of handling the sequential time value, precise sleep functions and process resuming. This ability means the reduction of wasting computer resources during the execution of a sleeping process from 100% (busy-wait) to 1-1.5%, whereas the benefits of very accurate process resuming times on long waits are maintained.

Supportive presentation for computer games

Supportive presentation, computer games, non-photorealistic rendering camera control, camera AI, human factors, user interfaces, action summary, action replay, non-photorealistic rendering case studies, psychology

Frame-coherent 3D stippling for non-photorealistic computer graphics

Stipping, non-photorealistic rendering, non-photorealistic computer graphics

Protection concepts in distribution networks with decentralised energy resources

Network protection, distribution networks, decentralised energy resources, communication links, IEC Communication and Substation Control Standards

Embedding metadata in computer graphics for interaction

Illustration Watermarks, Image annotation, Virtual data exploration, Interaction techniques

Children, computer and creativity : usability guidelines for designing a game authoring tool for children

Magdeburg, Univ., Fak. für Informatik, Diss., 2009

Modeling, evaluation and predicting of IT human resources performance

Magdeburg, Univ., Fak. für Informatik, Diss., 2012

Virtual Reality zur Untersuchung neuronaler Prozesse : Entwicklung und Validierung einer adaptiven Hirn-Computer-Schnittstelle zur dynamischen Interaktion mit Virtual Reality Paradigmen

Magdeburg, Univ., Fak. für Informatik, Diss., 2013

Computer-aided detection of cerebral aneurysms in angiographies

Magdeburg, Univ., Fak. für Informatik, Diss., 2013

Computer-assisted motion compensation and analysis of perfusion ultrasound data

Magdeburg, Univ., Fak. für Informatik, Diss., 2014

Kernspintomographische Untersuchung zur Bedeutung von Rückmeldungen in der Mensch-Computer-Interaktion

Magdeburg, Univ., Fak. für Naturwiss., Diss., 2015