Kränzler, Matthias

Matthias Kränzler, M. Sc.

Department of Electrical-Electronic-Communication Engineering
Chair of Multimedia Communications and Signal Processing (Prof. Dr. Kaup)

Room: Room 06.020
Cauerstr. 7
91058 Erlangen

Research

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:

Awards

  • , , , , , , : Joint Research Incubator Award (ITG-Fachausschuss MT 2 „Bildkommunikation und Bildverarbeitung“) – 2022

Publications

2022

2020

2019

2018

2016

Standardization Documents

  • , , : "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

Offered Theses

I offer theses in the field of energy-efficient video communication at any time.

https://www.lms.tf.fau.de/energieeffizienz-in-der-videokommunikation/

Completed Theses

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

Teaching

Exercise (UE)

Lecture (VORL)

  • Communication Networks

    • 2 SWS; Expected participants: 120; Early study; ECTS studies (ECTS credits: 5)
    • Date:
      • Tue 12:15-13:45, Room 0.151-115 (exclude vac) ICS