Publications

On this page, all my publications are listed in chronological order, grouped by publication type . Wherever possible, a full-text PDF version of the paper is provided or if not possible a link to the publisher’s online version of the paper via DOI or URL is given. In addition for each paper, the abstract and a citation in BibTeX format are provided.

For an always up-to-date citation count of the publications, please visit my Google Scholar profile.

BibTeX of all publications.

2017

Conference paper

Sebastian Arndt, Veli-Pekka Räty, Taco Nieuwenhuis, Christian Keimel, Francisco Ibáñez, Andrew Perkis: Enhancing Use of Social Media in TV Broadcasting, Adjunct Proceedings of the ACM International Conference on Interactive Experiences for TV and Online Video, in: TVX ’ 17, pp. 51-56, ACM, 2017.

Christoph Ziegler, Christian Keimel, Rajiv Ramdhany, Vinoba Vinayagamoorthy: On Time or Not on Time: A User Study on Delays in a Synchronised Companion-Screen Experience, Proceedings of the ACM International Conference on Interactive Experiences for TV and Online Video, in: TVX ’ 17, pp. 105-114, ACM, 2017.

Book section

Sebastian Egger-Lampl, Judith Redi, Tobias Hoßfeld, Matthias Hirth, Sebastian Möller, Babak Naderi, Christian Keimel, Dietmar Saupe: Crowdsourcing Quality of Experience Experiments, Evaluation in the Crowd. Crowdsourcing and Human-Centered Experiments, in: Lecture Notes in Computer Science, vol. 10264, pp. 154-190, Springer International Publishing, 2017. ISBN 978-3-319-66435-4.

2016

Book

Christian Keimel: Design of Video Quality Metrics with Multi-Way Data Analysis: A data driven approach, Springer, in: T-Labs Series in Telecommunication Services, Springer, 2016. ISBN 978-3-319-02680-0.

2015

Journal article

Thomas Volk, Christian Keimel, Michael Moosmeier, Klaus Diepold: Crowdsourcing vs. laboratory experiments – QoE evaluation of binaural playback in a teleconference scenario, Computer Networks, vol. 90, pp. 99-109, 2015. ISSN 1389-1286.

2014

Conference paper

Gustavo Moreira Calixto, Christian Keimel, Laisa Caroline de Paula Costa, Klaus Merkel, Marcelo Knorich Zuffo: Analysis of coexistence of Ginga and HbbTV in DVB and ISDB-Tb, Consumer Electronics - Berlin (ICCE-Berlin), 2014 IEEE Fourth International Conference on, pp. 83-87, 2014.

Clemens Horch, Julian Habigt, Christian Keimel, Klaus Diepold: Evaluation of video quality fluctuations using pattern categorisation, Quality of Multimedia Experience (QoMEX), 2014 Sixth International Workshop on, pp. 117-122, 2014.

Tobias Hoßfeld, Matthias Hirth, Pavel Korshunov, Phillipe Hanhart, Bruno Gardlo, Christian Keimel, Christian Timmerer: Survey of web-based crowdsourcing frameworks for subjective quality assessment, Multimedia Signal Processing (MMSP), 2014 IEEE 16th International Workshop on, pp. 1-6, 2014.

Book section

Tobias Hoßfeld, Christian Keimel: Crowdsourcing in QoE Evaluation, Quality of Experience, in: T-Labs Series in Telecommunication Services, pp. 315-327, Springer International Publishing, 2014. ISBN 978-3-319-02680-0.

Journal article

Tobias Hoßfeld, Christian Keimel, Christian Timmerer: Crowdsourcing Quality-of-Experience Assessments, Computer, vol. 47, no. 9, pp. 98-102, 2014. ISSN 0018-9162.

Tobias Hoßfeld, Christian Keimel, Matthias Hirth, Bruno Gardlo, Julian Habigt, Klaus Diepold, Phuoc Tran-Gia: Best Practices for QoE Crowdtesting: QoE Assessment With Crowdsourcing, Multimedia, IEEE Transactions on, vol. 16, no. 2, pp. 541-558, 2014. ISSN 1520-9210.

Tamara Seybold, Marion Knopp, Christian Keimel, Walter Stechele: Beyond Standard Noise Models: Evaluating Denoising Algorithms with Respect to Realistic Camera Noise, International Journal of Semantic Computing, vol. 08, no. 02, pp. 145-167, 2014.

Report

Tobias Hoßfeld, Matthias Hirth, Judith Redi, Filippo Mazza, Pavel Korshunov, Babak Naderi, Michael Seufert, Bruno Gardlo, Sebastian Egger, Christian Keimel: Best Practices and Recommendations for Crowdsourced QoE - Lessons learned from the Qualinet Task Force ''Crowdsourcing'', 2014.

2013

Conference paper

Tamara Seybold, Christian Keimel, Marion Knopp, Walter Stechele: Towards an Evaluation of Denoising Algorithms with Respect to Realistic Camera Noise, Multimedia (ISM), 2013 IEEE International Symposium on, pp. 203-210, 2013. ISBN 978-0-7695-5140-1.

Judith Alice Redi, Tobias Hoßfeld, Pavel Korshunov, Filippo Mazza, Isabel Povoa, Christian Keimel: Crowdsourcing-based Multimedia Subjective Evaluations: A Case Study on Image Recognizability and Aesthetic Appeal, Proceedings of the 2nd ACM International Workshop on Crowdsourcing for Multimedia, in: CrowdMM ‘13, pp. 29-34, ACM, 2013. ISBN 978-1-4503-2396-3.

Clemens Horch, Christian Keimel, Julian Habigt, Klaus Diepold: Length-independent refinement of video quality metrics based on multiway data analysis, Image Processing (ICIP), 2013 20th IEEE International Conference on, pp. 44-48, 2013.

Arne. Redl, Christian Keimel, Klaus Diepold: Saliency based video quality prediction using multi-way data analysis, Quality of Multimedia Experience (QoMEX), 2013 Fifth International Workshop on, pp. 188-193, 2013.

Christian Keimel, Christopher Pangerl, Klaus Diepold: Comparison of lossless video codecs for crowd-based quality assessment on tablets, Seventh International Workshop on Video Processing and Quality Metrics for Consumer Electronics - VPQM 2013, pp. 37-41, 2013.

Book section

Christian Keimel: Crowdsourcing of Multimedia QoE Subjective Experiments, Dagstuhl Reports - Crowdsourcing: From Theory to Practice and Long-Term Perspectives (Dagstuhl Seminar 13361), vol. 3, no. 9, pp. 1-33, Schloss Dagstuhl–Leibniz-Zentrum fuer Informatik, 2013. ISSN 2192-5283.

Report

Kjell Brunnström, Sergio Ariel Beker, Katrien De Moor, Ann Dooms, Sebastien Egger, Marie-Neige Garcia, Tobias Hossfeld, Satu Jumisko-Pyykkö, Christian Keimel, Chaker Larabi, Bob Lawlor, Patrick Le Callet, Sebastian Möller, Fernando Pereira, Manuela Pereira, Andrew Perkis, Jesenka Pibernik, Antonio Pinheiro, Alexander Raake, Peter Reichl, Ulrich Reiter, Raimund Schatz, Peter Schelkens, Lea Skorin-Kapov, Dominik Strohmeier, Christian Timmerer, Martin Varela, Ina Wechsung, Junyong You, Andrej Zgank: Qualinet White Paper on Definitions of Quality of Experience, 2013.

2012

Conference paper

Christian Keimel, Julian Habigt, KlausDiepold: Hybrid No-Reference Video Quality Metric Based on Multiway PLSR, European Signal Processing Conference (EUSIPCO),2012, pp. 1244-1248, 2012. ISBN 978-1-4673-1068-0. ISSN 2219-5491.

Christian Keimel, Julian Habigt, Klaus Diepold: Challenges in crowd-based video quality assessment, Quality of Multimedia Experience (QoMEX), 2012 Fourth International Workshop on, pp. 13-18, 2012. ISBN 978-1-4673-0725-3.

Christian Keimel, Arne Redl, Klaus Diepold: The TUM High Definition Video Data Sets, Fourth International Workshop on Quality of Multimedia Experience (QoMEX 2012), pp. 91-102, 2012. ISBN 978-1-4673-0725-3.

Christain Keimel, Julian Habigt, Clemens Horch, Klaus Diepold: QualityCrowd -- A framework for crowd-based quality evaluation, Picture Coding Symposium (PCS), 2012, pp. 245-248, 2012. ISBN 978-1-4577-2048-2.

Christian Keimel, Julian Habigt, Clemens Horch, Klaus Diepold: Video quality evaluation in the cloud, Packet Video Workshop (PV), 2012 19th International, pp. 155-160, 2012. ISBN 978-1-4673-0299-9.

Arne Redl, Christian Keimel, Klaus Diepold: Influence of viewing device and soundtrack in HDTV on subjective video quality, Image Quality and System Performance IX, vol. 8293, no. 1, pp. 829312-1-829312-9, SPIE, 2012.

Christian Keimel, Arne Redl, Klaus Diepold: Influence of viewing experience and stabilization phase in subjective video testing, Image Quality and System Performance IX, vol. 8293, no. 8293, pp. 829313-1-829313-9, 2012.

2011

Conference paper

Christian Keimel, Julian Habigt, Manuel Klimpke, Klaus Diepold: Design of no-reference video quality metrics with multiway partial least squares regression, Quality of Multimedia Experience (QoMEX), 2011 Third International Workshop on, pp. 49-54, 2011. ISBN 978-1-4577-1334-7.

Christian Keimel, Manuel Klimpke, Julian Habigt, Klaus Diepold: No-reference video quality metric for HDTV based on H.264/AVC bitstream features, Image Processing (ICIP), 2011 18th IEEE International Conference on, pp. 3325-3328, 2011. ISBN 978-1-4577-1302-6. ISSN 1522-4880.

Christian Keimel, Arne Redl, Klaus Diepold: Comparison of HDTV formats in a consumer environment, Image Quality and System Performance VIII, vol. 7867, pp. 786716-1-786716-7, 2011.

Christian Keimel, Martin Rothbucher, Klaus Diepold: Extending video quality metrics to the temporal dimension with 2D-PCR, Image Quality and System Performance VIII, vol. 7867, no. 1, pp. 786713-1-786713-10, SPIE, 2011.

Journal article

Christian Keimel, Martin Rothbucher, Hao Shen, Klaus Diepold: Video is a Cube, Signal Processing Magazine, IEEE, vol. 28, no. 6, pp. 41-49, 2011. ISSN 1053-5888.

Report

Clemens Horch, Christian Keimel, Klaus Diepold: QualityCrowd - Crowdsourcing for Subjective Video Quality Tests, 2011.

2010

Conference paper

Christian Keimel, Klaus Diepold, Michel Sarkis: Improving the visual quality of AVC/H.264 by combining it with content adaptive depth map compression, Picture Coding Symposium (PCS), 2010, pp. 494-497, 2010. ISBN 978-1-4244-7134-8.

Christian Keimel, Julian Habigt, Tim Habigt, Martin Rothbucher, Klaus Diepold: Visual quality of current coding technologies at high definition IPTV bitrates, Multimedia Signal Processing (MMSP), 2010 IEEE International Workshop on, pp. 390-393, 2010. ISBN 978-1-4244-8111-8.

Christian Keimel, Klaus Diepold: On the use of reference monitors in subjective testing for HDTV, Quality of Multimedia Experience (QoMEX), 2010 Second International Workshop on, pp. 35-40, 2010. ISBN 978-1-4244-6959-8.

Christian Keimel, Tobias Oelbaum, Klaus Diepold: Improving the prediction accuracy of video quality metrics, Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, pp. 2442-2445, 2010. ISBN 978-1-4244-4296-6.

Christian Keimel, Tobias Oelbaum, Klaus Diepold: Improving the prediction accuracy of PSNR by simple temporal pooling, Fifth International Workshop on Video Processing and Quality Metrics for Consumer Electronics - VPQM 2010, 2010.

Report

Manuel Klimpke, Christian Keimel, Klaus Diepold: Visuelle Qualitätsmetrik basierend auf der multivariaten Datenanalyse von H.264/AVC Bitstream-Features, 2010.

2009

Conference paper

Christian Keimel, Tobias Oelbaum, Klaus Diepold: Improving the verification process of video quality metrics, Quality of Multimedia Experience, 2009. QoMEx 2009. International Workshop on, pp. 121-126, 2009. ISBN 978-1-4244-4370-3.

Christian Keimel, Tobias Oelbaum, Klaus Diepold: No-reference video quality evaluation for high-definition video, Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on, pp. 1145-1148, 2009. ISBN 978-1-4244-2354-5. ISSN 1520-6149.

Journal article

Tobias Oelbaum, Christian Keimel, Klaus Diepold: Rule-Based No-Reference Video Quality Evaluation Using Additionally Coded Videos, Selected Topics in Signal Processing, IEEE Journal of, vol. 3, no. 2, pp. 294-303, 2009. ISSN 1932-4553.