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Self-Adaptive Video Encoder: Comparison of Multiple Adaptation Strategies Made Simple
Lund University, Sweden.
Mälardalens högskola, Akademin för innovation, design och teknik, Inbyggda system.ORCID-id: 0000-0002-1364-8127
Imperial College London, UK.
University of Chicago, USA.
2017 (engelsk)Inngår i: 12th International Symposium on Software Engineering for Adaptive and Self-Managing Systems SEAMS 17, Buenos Aires, Argentina, 2017, s. 123-128, artikkel-id 7968140Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This paper presents an adaptive video encoder that can be used to compare the behavior of different adaptation strategies using multiple actuators to steer the encoder towards a global goal, composed of multiple conflicting objectives. A video camera produces frames that the encoder manipulates with the objective of matching some space requirement to fit a given communication channel. A second objective is to maintain a given similarity index between the manipulated frames and the original ones. To achieve the goal, the software can change three parameters: the quality of the encoding, the noise reduction filter radius and the sharpening filter radius. In most cases the objectives -- small encoded size and high quality -- conflict, since a larger frame would have a higher similarity index to its original counterpart. This makes the problem difficult from the control perspective and makes the case study appealing to compare different adaptation strategies.

sted, utgiver, år, opplag, sider
Buenos Aires, Argentina, 2017. s. 123-128, artikkel-id 7968140
HSV kategori
Identifikatorer
URN: urn:nbn:se:mdh:diva-35479DOI: 10.1109/SEAMS.2017.16Scopus ID: 2-s2.0-85027129950ISBN: 9781538615508 (tryckt)OAI: oai:DiVA.org:mdh-35479DiVA, id: diva2:1108073
Konferanse
12th International Symposium on Software Engineering for Adaptive and Self-Managing Systems SEAMS 17, 22 May 2017, Buenos Aires, Argentina
Prosjekter
Future factories in the CloudTilgjengelig fra: 2017-06-12 Laget: 2017-06-12 Sist oppdatert: 2017-08-24bibliografisk kontrollert

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