Auszeichnungen von ITEC Mitarbeitern

Alexander Lercher nominated for Best Performer Award by Faculty of Technical Sciences, UNI-KLU

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Faculty of Technical Sciences, University of Klagenfurt nominated Alexander Lercher from ITEC (Radu Prodan‘s group) for Best Performer Award owing to his outstanding performance in studies.  He will be conferred with this honor at a public presentation in lecture hall -3 of the University of Klagenfurt on September 16, 2020. In the course of research carried out by the Studies and Examination Department, Alexander was identified as the most successful student in this field of study.

Hadi Amirpour awarded the Best Engagement Award at ACM MMSys 2020

This year’s ACM MMSys was held as a fully virtual/online event and Slido was used for asking questions about keynotes and presentations including offline discussions with presenters. The interaction report provides some interesting key insights including the word cloud below which provides an overview of this year’s discussion items. Although ACM MMSys 2020 is over, everyone is welcome joining the MMSys Slack workspace where the discussion will continue until ACM MMSys 2021 (available soon!) and hopefully beyond.

Roland Matha

Excellence badge for Roland Mathá et al. recently published IEEE TPDS paper

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The IEEE Transactions on Parallel and Distributed Systems (TPDS) paper “Simplified Workflow Simulation on Clouds based on Computation and Communication Noisiness”, published by Roland Mathá and Prof. Radu Prodan et al. got awarded the Code Reviewed Reproducibility EXCELLENCE Badge.

Christian Timmerer

Christian Doppler Lab ATHENA papers wins best paper award at QoMEX 2020


Title: Objective and Subjective QoE Evaluation for Adaptive Point Cloud Streaming

Authors: Jeroen van der Hooft (Ghent University), Maria Torres Vega (Ghent University), Christian Timmerer (Alpen-Adria-Universität Klagenfurt, Bitmovin), Ali C. Begen (Ozyegin University, Networked Media), Filip De Turck (Ghent University), Raimund Schatz (Alpen-Adria Universität Klagenfurt & AIT Austrian Institute of Technology, Austria)

Abstract: Volumetric media has the potential to provide the six degrees of freedom (6DoF) required by truly immersive media. However, achieving 6DoF requires ultra-high bandwidth transmissions, which real-world wide area networks cannot provide economically. Therefore, recent efforts have started to target efficient delivery of volumetric media, using a combination of compression and adaptive streaming techniques. It remains, however, unclear how the effects of such techniques on the user perceived quality can be accurately evaluated. In this paper, we present the results of an extensive objective and subjective quality of experience (QoE) evaluation of volumetric 6DoF streaming. We use PCC-DASH, a standards-compliant means for HTTP adaptive streaming of scenes comprising multiple dynamic point cloud objects. By means of a thorough analysis we investigate the perceived quality impact of the available bandwidth, rate adaptation algorithm, viewport prediction strategy and user’s motion within the scene. We determine which of these aspects has more impact on the user’s QoE, and to what extent subjective and objective assessments are aligned.

Keywords: Volumetric Media; HTTP Adaptive Streaming; 6DoF; MPEG V-PCC; QoE Assessment; Objective Metrics

International Conference on Quality of Multimedia Experience (QoMEX)
May 26-28, 2020, Athlone, Ireland

Christian Timmerer

ACM NOSSDAV’19 paper on Bandwidth Prediction in Low-Latency Chunked Streaming received Excellence in DASH award at ACM MMSys 2019


Authors: Abdelhak Bentaleb (National University of Singapore), Christian Timmerer (Alpen-Adria Universität & Bitmovin Inc,), Ali C. Begen(Ozyegin University), and Roger Zimmermann (National University of Singapore)

Abstract: HTTP adaptive streaming (HAS) with chunked transfer encoding can be used to reduce latency without sacrificing the coding ef- ficiency. While this allows a media segment to be generated and delivered at the same time, it also causes grossly inaccurate band- width measurements, leading to incorrect bitrate selections. To overcome this effect, we design a novel Adaptive bitrate scheme for Chunked Transfer Encoding (ACTE) that leverages the unique nature of chunk downloads. It uses a sliding window to accurately measure the available bandwidth and an online linear adaptive filter to predict the available bandwidth into the future. Results show that ACTE achieves 96% measurement accuracy, which translates to a 64% reduction in stalls and a 27% increase in video quality.


– Slides/PDF:

– DASH Industry Forum Excellence in DASH Award at ACM MMSys 2019:

KWF hat fünf Projekte im Bereich Technologische Dienstleistungen und Informationstechnologien ausgezeichnet



ITEC alumnus Daniel Posch awarded with “Carinthian Digitization Scholarship”

ITEC alumnus Daniel Posch wins the digitization scholarship (Digitalisierungsstipendium des Landes Kärnten)  of the Province of Carinthia within the category “Dissertation” (Supervision: Prof. Hellwagner). “

Klaus Schöffmann awarded with the Carinthian “Kultur-Förderpreis”

Klaus Schöffmann was awarded with the Carinthian “Kultur-Förderpreis” (area technical sciences).  More information is available HERE and HERE. Klaus will receive the prize officially on December 10, 2018 by the carinthian governor.