Clemens C. Wüst

Learn More
Video processing in software is often characterized by highly fluctuating, content-dependent processing times, and a limited tolerance for deadline misses. We present an approach that allows close-to-average-case resource allocation to a single video processing task, based on asynchronous, scalable processing, and QoS adaptation. The QoS adaptation balances(More)
This work shows that scalable video techniques together with a controlling mechanism for a device that receives and decodes video data provide a solution to some challenges posed by in-home networks. The challenges are resource limitations of devices (processor, memory, etc.) and network (bandwidth). Additionally, a wireless network usually has bandwidth(More)
• Multimedia Consumer Terminals – high pressure on cost and power consumption – deadline misses are severe failures • Approach: – CPU budgets • to prevent temporal interference upon overload – asynchronous processing • i.e. work ahead to even out load – scalable video applications with QoS control • to optimize visual perception [Wüst et al 05] –(More)
Multicore architectures provide scalable performance with a lower hardware design effort than single core processors. Our article presents a design methodology and an embedded multicore architecture, focusing on reducing the software design complexity and boosting the performance density. First, we analyze characteristics of the Task-Level Parallelism in(More)
In this paper, we present QoS control challenges for multimedia consumer terminals based on an application execution model and a QoS resource management framework. In the context of this framework, we briefly recapitulate earlier work aimed at QoS control for high-quality video processing. By relaxing a number of assumptions in that work, and by considering(More)
  • 1