Sufficient condition for real-time non-preemptive scheduling of interactive multimedia tasks

2013 ◽  
Author(s):  
Kristijan Lenac ◽  
Enzo Mumolo ◽  
Massimiliano Nolich
Keyword(s):  
Real Time ◽  
Interactive Multimedia ◽  
Sufficient Condition ◽  
Preemptive Scheduling

scholarly journals The Effects of Real-Time Interactive Multimedia Teleradiology System

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Lilac Al-Safadi
Keyword(s):  
Real Time ◽  
Interactive Multimedia ◽  
Point Of Care ◽  
Critical Role ◽  
Web Based ◽  
Teleradiology System ◽  
Multimedia Technologies ◽  
Referring Physicians ◽  
Improving Patient Care

This study describes the design of a real-time interactive multimedia teleradiology system and assesses how the system is used by referring physicians in point-of-care situations and supports or hinders aspects of physician-radiologist interaction. We developed a real-time multimedia teleradiology management system that automates the transfer of images and radiologists’ reports and surveyed physicians to triangulate the findings and to verify the realism and results of the experiment. The web-based survey was delivered to 150 physicians from a range of specialties. The survey was completed by 72% of physicians. Data showed a correlation between rich interactivity, satisfaction, and effectiveness. The results of our experiments suggest that real-time multimedia teleradiology systems are valued by referring physicians and may have the potential for enhancing their practice and improving patient care and highlight the critical role of multimedia technologies to provide real-time multimode interactivity in current medical care.

Resilient overlay network for real-time interactive multimedia sessions in corporate networks

2015 ◽  
Vol 22 (5) ◽  
pp. 543-557 ◽  
Author(s):  
Juan C. Granda ◽  
Pelayo Nuño ◽  
Julio Molleda ◽  
Rubén Usamentiaga ◽  
Daniel F. García
Keyword(s):  
Real Time ◽  
Interactive Multimedia ◽  
Overlay Network ◽  
Corporate Networks

scholarly journals Towards Fully Jitterless Applications: Periodic Scheduling in Multiprocessor MCSs Using a Table-Driven Approach

2020 ◽  
Vol 10 (19) ◽  
pp. 6702
Author(s):  
Eugenia Ana Capota ◽  
Cristina Sorina Stangaciu ◽  
Mihai Victor Micea ◽  
Daniel-Ioan Curiac
Keyword(s):  
Real Time ◽  
Multiprocessor Systems ◽  
Preemptive Scheduling ◽  
Algorithm Performance ◽  
Safety Critical ◽  
Time Table ◽  
Scheduling Method ◽  
Embedded Applications ◽  
Special Case ◽  
Mixed Criticality

In mixed criticality systems (MCSs), the time-triggered scheduling approach focuses on a special case of safety-critical embedded applications which run in a time-triggered environment. Sometimes, for these types of MCSs, perfectly periodical (i.e., jitterless) scheduling for certain critical tasks is needed. In this paper, we propose FENP_MC (Fixed Execution Non-Preemptive Mixed Criticality), a real-time, table-driven, non-preemptive scheduling method specifically adapted to mixed criticality systems which guarantees jitterless execution in a mixed criticality time-triggered environment. We also provide a multiprocessor version, namely, P_FENP_MC (Partitioned Fixed Execution Non-Preemptive Mixed Criticality), using a partitioning heuristic. Feasibility tests are proposed for both uniprocessor and homogenous multiprocessor systems. An analysis of the algorithm performance is presented in terms of success ratio and scheduling jitter by comparing it against a time-triggered and an event-driven method in a non-preemptive context.

Deterministic preemptive scheduling of real-time tasks

Computer ◽  
2002 ◽  
Vol 35 (5) ◽  
pp. 72-79 ◽  
Author(s):  
L.E. Jackson ◽  
G.N. Rouskas
Keyword(s):  
Real Time ◽  
Preemptive Scheduling

scholarly journals Sensing and mapping for interactive performance

2002 ◽  
Vol 7 (2) ◽  
pp. 191-200 ◽  
Author(s):  
Kia Ng
Keyword(s):  
Real Time ◽  
Interactive Multimedia ◽  
Real Time Control ◽  
Time Control ◽  
System A ◽  
Domain Mapping ◽  
Virtual And Augmented Reality ◽  
Definition Of ◽  
Multimedia Performance ◽  
Physical Changes

This paper describes a trans-domain mapping (TDM) framework for translating meaningful activities from one creative domain onto another. The multi-disciplinary framework is designed to facilitate an intuitive and non-intrusive interactive multimedia performance interface that offers the users or performers real-time control of multimedia events using their physical movements. It is intended to be a highly dynamic real-time performance tool, sensing and tracking activities and changes, in order to provide interactive multimedia performances.From a straightforward definition of the TDM framework, this paper reports several implementations and multi-disciplinary collaborative projects using the proposed framework, including a motion and colour-sensitive system, a sensor-based system for triggering musical events, and a distributed multimedia server for audio mapping of a real-time face tracker, and discusses different aspects of mapping strategies in their context.Plausible future directions, developments and exploration with the proposed framework, including stage augmenta tion, virtual and augmented reality, which involve sensing and mapping of physical and non-physical changes onto multimedia control events, are discussed.

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