Mats Folkesson
Ericsson
12 Papers
46 Citations
Mats Folkesson is an academic researcher from Ericsson. The author has contributed to research in topics: Video quality & Subjective video quality. The author has an hindex of 6, co-authored 11 publications.
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Papers
Subjective quality assessment of video conferences and telemeetings
Gunilla Berndtsson,Mats Folkesson,Valentin Kulyk +2 more
- 10 May 2012
TL;DR: Several subjective tests performed at Ericsson are described, both one-way and conversational tests, to increase the knowledge on the perceived quality of different telemeeting scenarios and to develop test methodologies for quality evaluation of multiparty conversations.
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Challenges Building a Data Value Chain to Enable Data-Driven Decisions: A Predictive Maintenance Case in 5G-Enabled Manufacturing
Magnus Åkerman,Camilla Lundgren,Maja Bärring,Mats Folkesson,Viktor Berggren,Johan Stahre,Ulrika Engström,Martin Friis +7 more
TL;DR: Results show that, just as the literature suggests, the knowledge gaps between different domains is a key component to manage for succeeding when building Big Data applications in the context of future manufacturing and maintenance.
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3D video quality assessment with multi-scale subjective method
Valentin Kulyk,Samira Tavakoli,Mats Folkesson,Kjell Brunnström,Kun Wang,Narciso Garcia +5 more
- 03 Jul 2013
TL;DR: A cross-laboratory study employing the same test setup and materials where a multi-scale rating method was used shows that the Quality of Experience of 3D video is a multidimensional concept and therefore more than one scale is in many cases needed for subjective assessment of the QoE of3D video.
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Patent
Method for manually optimizing jitter, delay and synch levels in audio-video transmission
Martin Pettersson,Valentin Kulyk,Mats Folkesson,Bo Burman +3 more
- 13 Mar 2008
TL;DR: In this paper, a communication device and method provide selective control of a level of buffering of at least one data stream, including a jitter buffer control unit and a user interface.
13
Patent
Method, computer, computer program and computer program product for speech quality estimation
Volodya Grancharov,Mats Folkesson +1 more
- 26 Jul 2010
TL;DR: In this article, the authors proposed a method, computer, computer program and computer program product for speech quality estimation, which comprises the steps of: determining a coding distortion parameter (QCOD), a bandwidth related distortion (BW) and a presentation level distortion (PL) of a speech signal; extracting a first coefficient (ω 1 ) and a second coefficient(ω 2 ), the first coefficient and the second coefficient being dependent on the coding distortion parameters; and calculating a signal quality measure (Q), where the signal quality measures is Q COD + ω 1 Bw +
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