Kränzler, Matthias
Matthias Kränzler, M. Sc.
For more than 5 years I have been working on energy-efficient video communication. The main focus in this field is the encoding and decoding of video data, but also the data transmission as well as the playback on end devices. More information can be found on the following pages:
- , , , , : Nachhaltigkeitspreis - Kategorie "Research" (Friedrich-Alexander Universität Erlangen-Nürnberg) – 2023
- , , , , , , : Joint Research Incubator Award (ITG-Fachausschuss MT 2 „Bildkommunikation und Bildverarbeitung“) – 2022
2024
Complexity Metrics for VVC Decoder Power Reduction in Green Metadata
Picture Coding Symposium (Taichung, Taiwan, 12. June 2024 - 14. June 2024)
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Decoding Energy Optimization for Video Coding Using Model-Driven Gradient Descent
IEEE 26th International Workshop on Multimedia Signal Processing (MMSP) (Purdue Universty, West Lafayette, Indiana, USA, 2. October 2024 - 4. October 2024)
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The Bjøntegaard Bible - Why your Way of Comparing Video Codecs May Be Wrong
In: IEEE Transactions on Image Processing 33 (2024), p. 987 - 1001
ISSN: 1057-7149
DOI: 10.1109/TIP.2023.3346695
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A Comprehensive Review of Software and Hardware Energy Efficiency of Video Decoders
Picture Coding Symposium (PCS) (Taichung, Taiwan, 12. June 2024 - 14. June 2024)
DOI: 10.48550/arXiv.2402.09001
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2023
Extended Signaling Methods for Reduced Video Decoder Power Consumption Using Green Metadata
In: IEEE Transactions on Circuits and Systems II: Express Briefs (2023)
ISSN: 1057-7130
URL: http://arxiv.org/abs/2310.17346
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Video Decoding Energy Reduction Using Temporal-Domain Filtering
First International Workshop on Green Multimedia Systems (GMSys '23) on the ACM Multimedia Systems (MMSys) (Vancouver, 7. June 2023 - 10. June 2023)
DOI: 10.1145/3593908.3593948
URL: https://arxiv.org/abs/2306.06917
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Energy Efficiency in Video Compression
In: IEEE MMTC Communications - Frontiers 18 (2023), p. 8-14
Open Access: https://site.ieee.org/comsoc-mmctc/files/2023/10/MMTC-May-2023-18_3.pdf
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Sweet Streams are Made of This: The System Engineer’s View on Energy Efficiency in Video Communications (Preprint)
In: Ieee Circuits and Systems Magazine 23 (2023), p. 57-77
ISSN: 1531-636X
DOI: 10.1109/MCAS.2023.3234739
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Estimating Software and Hardware Video Decoder Energy Using Software Decoder Profiling
2023 36th SBC/SBMicro/IEEE/ACM Symposium on Integrated Circuits and Systems Design (SBCCI) (Rio de Janeiro, Brazil, 28. August 2023 - 1. September 2023)
DOI: 10.1109/SBCCI60457.2023.10261662
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2022
Beyond Bjontegaard: Limits of Video Compression Performance Comparisons
IEEE International Conference on Image Processing (Bordeaux, 17. October 2022 - 19. October 2022)
DOI: 10.1109/ICIP46576.2022.9897912
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Modeling of Energy Consumption and Streaming Video QoE using a Crowdsourcing Dataset
The 14th International Conference on Quality of Multimedia Experience (QoMEX) (Lippstadt, 5. September 2022 - 7. September 2022)
DOI: 10.1109/QoMEX55416.2022.9900886
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Advanced Design Space Exploration for Joint Energy and Quality Optimization for VVC
Picture Coding Symposium (PCS) (San Jose, California, 7. December 2022 - 9. December 2022)
DOI: 10.1109/PCS56426.2022.10018037
URL: https://arxiv.org/abs/2209.10211
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Energy Efficient Video Decoding for VVC Using a Greedy Strategy Based Design Space Exploration
In: IEEE Transactions on Circuits and Systems For Video Technology 32 (2022), p. 4696-4709
ISSN: 1051-8215
DOI: 10.1109/TCSVT.2021.3130739
URL: https://arxiv.org/abs/2111.12194
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Optimized Decoding-Energy-Aware Encoding In Practical VVC Implementations
29th IEEE International Conference on Image Processing (IEEE ICIP) (Bordeaux, 16. October 2022 - 19. October 2022)
DOI: 10.1109/ICIP46576.2022.9897896
URL: https://arxiv.org/abs/2206.13483
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2020
A Comparative Analysis of the Time and Energy Demand of Versatile Video Coding and High Efficiency Video Coding Reference Decoders
IEEE International Workshop on Multimedia Signal Processing (MMSP) (Tampere, Finland, 21. September 2020 - 23. September 2020)
DOI: 10.1109/MMSP48831.2020.9287098
URL: https://arxiv.org/abs/2209.10283
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Decoding Energy Modeling for Versatile Video Coding
IEEE International Conference on Image Processing (ICIP) (Abu Dhabi, 25. October 2020 - 28. October 2020)
DOI: 10.1109/ICIP40778.2020.9190840
URL: https://doi.org/10.48550/arXiv.2209.10266
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DENESTO: A Tool for Video Decoding Energy Estimation and Visualization
2020 IEEE International Conference on Visual Communications and Image Processing (VCIP) (Virtual Conference, 1. December 2020 - 4. December 2020)
DOI: 10.1109/VCIP49819.2020.9301877
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2019
Extending Video Decoding Energy Models for 360° and HDR Video Formats in HEVC
Picture Coding Symposium (PCS) (Ningbo, 12. November 2019 - 15. November 2019)
DOI: 10.1109/PCS48520.2019.8954563
URL: https://doi.org/10.48550/arXiv.2209.10268
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2018
Decoding Energy Modeling for the Next Generation Video Codec Based on JEM
Picture Coding Symposium (PCS) (San Francisco, 24. June 2018 - 27. June 2018)
DOI: 10.1109/pcs.2018.8456244
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2016
A Bitstream Feature Based Model for Video Decoding Energy Estimation
Picture Coding Symposium (PCS) (Nürnberg, 4. December 2016 - 7. December 2016)
DOI: 10.1109/PCS.2016.7906400
URL: https://doi.org/10.48550/arXiv.2204.10151
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- VTM Encoder Implementation for Green-MPEG SEI Messaging, document JVET-AB0072, Mainz, DE, 2022 , , :
- VTM Software Implementation for GREEN-MPEG SEI Messaging, document JVET-Z0046, Teleconference, 2022 , , :
- Proposed update of the WD of ISO/IEC 23001-11 3rd edition Energy-Efficient Media Consumption – Interactive Signaling for dec_ops_reduction, document m57977, Online, 2021 , , , , , , , , , , , :
- Proposed update of Green MPEG on Complexity metrics for decoder-power reduction for VVC, document m57976, Online, 2021 , , , , , , , , , , , :
- Proposed update of Green MPEG metrics for quality recovery, document m57949, Online, 2021 , , , , , , , , , , , :
- Proposed CD text of Green MPEG 3rd edition specification, document m57978, Online, 2021 , , , , , , , , , , , :
- Proposed Amendment on ISO/IEC 23001-11 (Green MPEG), document m57425, Teleconference, 2021 , , , , , , , , , , , :
- AHG9: Green Metadata SEI message for VVC, document JVET-W0071, Teleconference, 2021 , , , , , , , , , , , :
- Decoding Time and Energy Assessment of VTM-10.0 and VVdeC, document JVET-T0068, Teleconference, 2020 , , :
- Bit Stream Feature Analyzer (BSFA) for Coding Tool Statistics based on VTM-10.0, document JVET-T0067, Teleconference, 2020 , , :
- Modeling of the Decoding Energy for VTM-7.0 with a Bit Stream Feature-Based Model, document JVET-Q0052, Brüssel, BE, 2020 , , :
- Bit Stream Feature Analyzer (BSFA) for Coding Tool Statistics Based on VTM-7.0, document JVET-Q0049, Brüssel, BE, 2020 , , :
- Analysis of the Energy-Time Relationship for VVC and HEVC Software Video Decoders, document JVET-Q0051, Brüssel, BE, 2020 , , :
- AHG13: Decoding Time and Energy Assessment of VTM-7.0, document JVET-Q0050, Brüssel, BE, 2020 , , :
- AHG13: Analysis of the Energy Demand and Time Complexity of Several Coding Tools in VTM-7.0, document JVET-Q0053, Brüssel, BE, 2020 , , :
- Decoding Energy Assessment of VTM-6.0, document JVET-P0084, Genf, CH, 2019 , , :
- Bit Stream Analyzer for Coding Tool Statistics, document JVET-P0085, Genf, CH, 2019 , , :
- Energy Modeling for Video Decoding, document JVET-K0107, Ljubljana, SI, 2018 , , :
- Decoding-Energy-Rate-Distortion Optimization, document JVET-K0108, Ljubljana, SI, 2018 , , :
Master Theses
- “Analyse des durch Videokommunikation verursachten CO2-Ausstoßes”, 2020
- “Gradientenabstiegsverfahren für optimierte DERDO in der Videocodierung”, 2021
- “Räumlich-zeitliche Unterabtastung für die energieeffiziente Videokommunikation”, 2021
- “Lernbasierte Schätzung derVideodecodierenergie”, 2023
Bachelor Theses
- “Beyondtegaard-Delta für die Bewertung von Videocodecs”, 2020
- “Energieeffiziente Videodecodierung für AV1 mittels einer Design Space Exploration”, 2022
- “Analyse der Energie- und Kompressionseffizienz von praktischen Videodecoder Implementierungen”, 2023
Research Internship
- “Overfitting in Video Decoding Energy Modeling”, 2019
- “Gradientenabstiegsverfahren für DERDO in der x264-Videocodierung”, 2020
- “Framework für automatisierte subjektive Tests für Videodaten”, 2020
- “A Bit Stream Feature-Based Energy Model for the Essential Video Coding (EVC) Video Decoder”, 2020
- “Modellierung des Energiebedarfs von Video Streaming über WiFi”, 2020
- “Analyse der Kompressions- und Komplexitätseffizienz von Videocodecs”, 2021
- “Komplexitätsanalyse der Codier Werkzeuge für Video Encoder”, 2022