Publications

P. Halvorsen, S. Særgrov, A. Mortensen, D. Kai Christen Kristensen, A. Eichhorn, M. Stenhaug, S. Dahl, H. K. Stensland, V. R. Gaddam, C. Griwodz, and D. Johansen. Bagadus: An Integrated System for Arena Sports Analytics – A Soccer Case Study –, In: Proceedings of the 4th annual ACM conference on Multimedia Systems (MMSYS), ed. by Roger Zimmermann, pp. 48-59, ACM (ISBN: 978-1-4503-1894-5), 2013.

M. Tennøe, E. O. Helgedagsrud, M. Næss, H. K. Alstad, H. K. Stensland, P. Halvorsen, and C. Griwodz. Real­time Panorama Video Processing Using NVIDIA GPUs, GPU Technology Conference, 2013.

M. Claypool and C. Griwodz. Proceedings of the 3rd Multimedia Systems Conference, ACM(ISBN: 978-1-4503-1131-1), 2012.

D. Dwarakanath, A. Eichhorn, P. Halvorsen, and C. Griwodz. Evaluating Performance of Feature Extraction Methods for Practical 3D Imaging Systems, In: 27th International Conference Image and Vision Computing New Zealand, ed. by IVCNZ, ACM - International Conference Proceedings Series (ICPS), 2012.

H. Espeland, P. N. Olsen, P. Halvorsen, and C. Griwodz. Low-level Scheduling Implications for Data-intensive Cyclic Workloads on Modern Microarchitectures, In: The 41st International Conference on Parallel Processing Workshops, ed. by Pavan Balaji and Heshan Lin, IACC, IEEE (ISBN: 978-0-7695-4795-4), 2012.

T. Kupka, P. Halvorsen, and C. Griwodz. Performance of On-Off Traffic Stemming From Live Adaptive Segmented HTTP Video Streaming, In: Proceedings of the IEEE Conference on Local Computer Networks (LCN), ed. by N/A, pp. 405-413, IEEE, IEEE, 2012.

K. Raaen, H. Espeland, H. Stensland, A. Petlund, P. Halvorsen, and C. Griwodz. LEARS: A Lockless, Relaxed-Atomicity State Model for Parallel Execution of a Game Server Partition, In: The 41st International Conference on Parallel Processing Workshops, ed. by Pavan Balaji and Heshan Lin, IACC, IEEE (ISBN: 978-0-7695-4795-4), 2012.

H. Riiser, H. Bergsaker, P. Vigmostad, P. Halvorsen, and C. Griwodz. A Comparison of Quality Scheduling in Commercial Adaptive HTTP Streaming Solutions on a 3G Network, In: Proceeding of the ACM Workshop on Mobile Video (MoVid), ed. by N/A, pp. 25-30, ACM, 2012.

S. Sægrow, A. Eichhorn, J. Emerslund, H. K. Stensland, C. Griwodz, and P. Halvorsen. BAGADUS: An Integrated System for Soccer Analysis, In: Proceedings of the International Conference on Distributed Smart Cameras (ICDSC), ed. by N/A, ACM/IEEE, 2012.

C. Griwodz. Perceived audiovisual synchrony in distorted speech, COST IC 1003, Fourth Qualinet General Meeting, Zagreb, Oct. 11, 2012.

C. Griwodz. Media Performance: building and evaluating multimedia systems, Academica Sinica, Taipeh, Taiwan, November 6, 2012.

C. Griwodz. Media Performance: building and evaluating multimedia systems, National Tsing Hue University, Hsinchu, Taiwan, November 7, 2012.

C. Timmerer and C. Griwodz. Dynamic Adaptive Streaming over HTTP – From Content Creation to Consumption, Tutorial, ACM Multimedia 2012, Nara, Japan, 2012.

K. R. Evensen, D. Kaspar, C. Griwodz, P. Halvorsen, A. F. Hansen, and P. E. Engelstad. Using bandwidth aggregation to improve the performance of quality-adaptive streaming, Signal Processing: Image Communication 27(4):312–328, 2011.

D. Johansen, P. Halvorsen, H. Johansen, H. Riiser, C. Gurrin, B. Olstad, C. Griwodz, Å. Kvalnes, J. Hurley, and T. Kupka. Search-based composition, streaming and playback of video archive content, Multimedia Tools and Applications(online first), 2011.

H. Riiser, T. Endestad, P. Vigmostad, C. Griwodz, and P. Halvorsen. Video Streaming Using a Location-based Bandwidth-Lookup Service for Bitrate Planning, ACM Transactions on Multimedia Computing, Communications and Applications (TOMCCAP) - accepted for publication February 2011 8(3), 2011.

P. Beskow, H. K. Stensland, H. Espeland, E. A. Kristiansen, P. N. Olsen, S. B. Kristoffersen, C. Griwodz, and P. Halvorsen. Processing of Multimedia Data using the P2G Framework, In: Proceedings of the 19th ACM international conference on Multimedia, ed. by Hari Sundaram, Wu-Chi Feng, Nicu Sebe, pp. 819-820, ACM, 2011.

H. Espeland, P. Beskow, H. K. Stensland, P. N. Olsen, S. B. Kristoffersen, C. Griwodz, and P. Halvorsen. P2G: A Framework for Distributed Real-Time Processing of Multimedia Data, In: Proceedings of the International Workshop on Scheduling and Resource Management for Parallel and Distributed Systems (SRMPDS) - The 2011 International Conference on Parallel Processing Workshops, ed. by Jang-Ping Sheu and Cho-Li Wang, pp. 416-426, IEEE, 2011.

K. R. Evensen, D. Kaspar, C. Griwodz, P. Halvorsen, A. F. Hansen, and P. E. Engelstad. Improving the Performance of Quality-Adaptive Video Streaming over Multiple Heterogeneous Access Networks, In: Proceedings of the second annual ACM conference on Multimedia systems (MMSYS), ed. by Ali C. Begen, Ketan Mayer-Patel, pp. 57-68, ACM, ACM, 2011.

K. R. Evensen, D. Kaspar, A. F. Hansen, C. Griwodz, and P. Halvorsen. Using Multiple Links to Increase the Performance of Bandwidth-Intensive UDP-Based Applications, In: Proceedings of IEEE ISCC 2011, ed. by Adel S. Elmaghraby and Christos Douligeris, vol. 16, pp. 1117-1122, IEEE, IEEE, 2011.

K. R. Evensen, A. Petlund, D. Kaspar, C. Griwodz, P. Halvorsen, H. Riiser, and P. Vigmostad. Demo: Quality-Adaptive Video Streaming With Dynamic Bandwidth Aggregation on Roaming, Multi-Homed Clients, In: Proceedings of the 9th international conference on Mobile systems, applications, and services (MOBISYS), ed. by Ashok Agrawala, pp. 355-356, ACM, New York, ACM, 2011.

K. R. Evensen, A. Petlund, H. Riiser, P. Vigmostad, D. Kaspar, C. Griwodz, and P. Halvorsen. Mobile video streaming using location-based network prediction and transparent handover, In: NOSSDAV, ed. by Charles 'Buck' Krasic and Kang Li, pp. 21-26, ACM, New York, ACM, 21 ed, 2011.

T. Kupka, C. Griwodz, and P. Halvorsen. An Evaluation of Live Adaptive HTTP Segment Streaming Request Strategies, In: Proceedings of the IEEE Conference on Local Computer Networks (LCN), ed. by Tom Pfeifer, Anura Jayasumana, pp. 608-616, IEEE, 2011.

P. Ni, R. Eg, A. Eichhorn, C. Griwodz, and P. Halvorsen. Flicker Effects in Adaptive Video Streaming to Handheld Devices, In: Proceedings of the ACM International Multimedia Conference (ACM MM), ed. by Hari Sundaram, Wu-Chi Feng, & Nicu Sebe, pp. 463-472, ACM, 2011.

P. Ni, R. Eg, A. Eichhorn, C. Griwodz, and P. Halvorsen. Spatial Flicker Effect in Video Scaling, In: Proceedings of the International Workshop on Quality of Multimedia Experience (QoMEX), ed. by Gabriel Cristobal, An Jacobs, Alexander Raake, pp. 55 - 60 , IEEE, 2011.

K. Raaen, H. Espeland, H. K. Stensland, A. Petlund, P. Halvorsen, and C. Griwodz. A Demonstration Of a Lockless, Relaxed Atomicity State Parallel Game Server (LEARS), In: Workshop on Network and Systems Support for Games (NetGames 2011), ed. by Shervin Shirmohammadi, pp. 1-3, IEEE / ACM, 2011.

H. Riiser, P. Vigmostad, C. Griwodz, and P. Halvorsen. Bitrate and video quality planning for mobile streaming scenarios using a GPS-based bandwidth lookup service, In: Proceedings of the IEEE International Conference on Multimedia and Expo (ICME), ed. by , pp. 1-6, IEEE, 2011.

P. Beskow, H. Espeland, H. K. Stensland, P. N. Olsen, S. B. Kristoffersen, E. A. Kristiansen, C. Griwodz, and P. Halvorsen. Distributed Real-Time Processing of Multimedia Data with the P2G Framework, EuroSys 2011, 2011.

P. Beskow, A. Petlund, G. Erikstad, C. Griwodz, and P. Halvorsen. Reducing game latency by migration, core-selection and TCP modifications, Inderscience International Journal of Advanced Media and Communication (IJAMC) 4(4):343-363, 2010.

F. T. Johnsen, T. Hafsøe, A. Eggen, C. Griwodz, and P. Halvorsen. Web Services Discovery across Heterogeneous Military Networks, IEEE Communications Magazine 48(10):84-90, 2010.

Å. Kvalnes, D. Johansen, C. Griwodz, and P. Halvorsen. Support for enterprise consolidation of I/O bound services, Wiley Software: Practice and Experience 40(10):1035 - 1051, 2010.

P. Ni, A. Eichhorn, C. Griwodz, and P. Halvorsen. Frequent layer switching for perceived quality improvements of coarse-grained scalable video, Springer Multimedia Systems Journal 16(3):171-182, 2010.

Z. Vrba, P. Halvorsen, C. Griwodz, P. Beskow, H. Espeland, and D. Johansen. The Nornir run-time system for parallel programs using Kahn process networks on multi-core machines - A flexible alternative to MapReduce, The Journal of Supercomputing, Springer(Online first):1-27, 2010.

S. Boudko, W. Leister, C. Griwodz, and P. Halvorsen. Maximizing video quality for several unicast streams in a multipath overlay network, In: Proceedings of International Conference on Internet Multimedia Systems Architecture and Application (IMSAA), ed. by Ashutosh Dutta, Sanjoy Paul, IEEE, 2010.

K. R. Evensen, T. Kupka, D. Kaspar, P. Halvorsen, and C. Griwodz. Quality-Adaptive Scheduling for Live Streaming over Multiple Access Networks, In: The 20th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2010), ed. by Dick C. A. Bulterman, pp. 21-26, ACM, 2010.

E. Jacobsen, C. Griwodz, and P. Halvorsen. Pull-Patching: A Combination of Multicast and Adaptive Segmented HTTP Streaming, In: Proceedings of the International Conference on Multimedia (ACM MM), ed. by Alberto Del Bimbo and Shih-Fu Chang and Arnold W. M. Smeulders, pp. 799-802, ACM, 2010.

D. Johansen, H. Johansen, P. Halvorsen, B. Olstad, C. Gurrin, and C. Griwodz. Composing Personalized Video Playouts Using Search, In: Proceedings of the International Workshop on Visual Content Identification and Search (VCIDS) - ICME workshops, ed. by Jian Lu and Xian-Sheng Hua and China Dong Xu, pp. 1534-1539, IEEE, 2010.

D. Kaspar, K. R. Evensen, P. E. Engelstad, A. F. Hansen, P. Halvorsen, and C. Griwodz. Enhancing Video-on-Demand Playout over Multiple Heterogeneous Access Networks, In: Consumer Communications and Networking Conference (CCNC), ed. by IEEE, IEEE, 2010.

H. Riiser, P. Halvorsen, C. Griwodz, and D. Johansen. Low Overhead Container Format for Adaptive Streaming, In: Proceedings of the ACM Multimedia Systems (MMSys), ed. by Wu-chi Feng, Ketan Mayer-Patel, pp. 193-198, ACM, 2010.

H. K. Stensland, H. Espeland, C. Griwodz, and P. Halvorsen. Tips, Tricks and Troubles: Optimizing for Cell and GPU, In: The 20th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2010), ed. by Dick C. A. Bulterman, pp. 75-80, ACM, 2010.

H. K. Stensland, M. Myrseth, C. Griwodz, and P. Halvorsen. Cheat Detection Processing: A GPU versus CPU Comparison, In: Workshop on Network and Systems Support for Games (NetGames 2010), ed. by Adrian Cheok and Jiung-Yao Huang and Yutaka Ishibashi, pp. 8:1--8:6, ACM IEEE, 2010.

Z. Vrba, P. Halvorsen, and C. Griwodz. A simple improvement of the work-stealing scheduling algorithm, In: Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems (CISIS) - International Workshop on Multi-Core Computing Systems (MuCoCoS), Krakow, Poland, February 2010, ed. by N/A, pp. 925-930, N/A, 2010.

Z. Vrba, P. Halvorsen, and C. Griwodz. Program obfuscation by strong cryptography, In: Proceedings of the International Conference on Availability, Reliability and +Security (ARES), Krakow, Poland, February 2010, ed. by N/A, pp. 242-247, N/A, 2010.

A. Petlund, P. Halvorsen, and C. Griwodz. Latency Can Kill - Defeat The Lag!, The Gathering World & Pegasus, 2010.

H. K. Stensland, H. Espeland, C. Griwodz, and P. Halvorsen. Temming av multikjerneprosessorer – Fordeler og utfordringer, The Gathering World & Pegasus, 2010.

P. Beskow, Knut-H. Vik, P. Halvorsen, and C. Griwodz. The Partial Migration of Game State and Dynamic Server Selection to Reduce Latency, Springer’s Multimedia Tools and Applications 45(1-3):83 - 107, 2009.

A. Petlund, P. Beskow, J. Pedersen, E. S. Paaby, C. Griwodz, and P. Halvorsen. Improving SCTP Retransmission Delays for Time-Dependent Thin Streams, Springer’s Multimedia Tools and Applications 45(1-3):33-60, 2009.

P. Beskow, G. Erikstad, P. Halvorsen, and C. Griwodz. Evaluating Ginnungagap: a middleware for migration of partial game-state utilizing core-selection for latency reduction, In: Proceedings of the workshop on Network and System Support for Games (NetGames), ed. by Maha Abdallah, pp. 1-6, IEEE, 2009.

K. R. Evensen, D. Kaspar, P. E. Engelstad, A. F. Hansen, C. Griwodz, and P. Halvorsen. A Network-Layer Proxy for Bandwidth Aggregation and Reduction of IP Packet Reordering, In: The 34rd Annual IEEE Conference on Local Computer Networks (LCN), ed. by N/A, pp. 585 - 592, IEEE, 2009.

D. Kaspar, K. R. Evensen, A. F. Hansen, P. E. Engelstad, P. Halvorsen, and C. Griwodz. An Analysis of the Heterogeneity and IP Packet Reordering over Multiple Wireless Networks, In: IEEE Symposium on Computers and Communications (ISCC), ed. by ISCC, pp. 637-642, IEEE, 2009.