23 citations · 112 across the 13 of their papers we have counts for
13 papers
Design Space Exploration at Frame-Level for Joint Decoding Energy and Quality Optimization in VVC
Teresa Stürzenhofäcker, Matthias Kränzler, Christian Herglotz +1
In the pursuit of a reduced energy demand of VVC decoders, it was found that the coding tool configuration has a substantial influence on the bit rate efficiency and the decoding e…
A Comprehensive Review of Software and Hardware Energy Efficiency of Video Decoders
Matthias Kränzler, Christian Herglotz, André Kaup
Energy and compression efficiency are two essential parts of modern video decoder implementations that have to be considered. This work comprehensively studies the following six vi…
Extended Signaling Methods for Reduced Video Decoder Power Consumption Using Green Metadata
Christian Herglotz, Matthias Kränzler, Xixue Chu +3
In this paper, we discuss one aspect of the latest MPEG standard edition on energy-efficient media consumption, also known as Green Metadata (ISO/IEC 232001-11), which is the inter…
Video Decoding Energy Reduction Using Temporal-Domain Filtering
Christian Herglotz, Matthias Kränzler, Robert Ludwig +1
In this paper, we study decoding energy reduction opportunities using temporal-domain filtering and subsampling methods. In particular, we study spatiotemporal filtering using a co…
The Bjøntegaard Bible -- Why your Way of Comparing Video Codecs May Be Wrong
Christian Herglotz, Hannah Och, Anna Meyer +8
In this paper, we provide an in-depth assessment on the Bjøntegaard Delta. We construct a large data set of video compression performance comparisons using a diverse set of metrics…
Modeling of Energy Consumption and Streaming Video QoE using a Crowdsourcing Dataset
Christian Herglotz, Werner Robitza, Matthias Kränzler +2
In the past decade, we have witnessed an enormous growth in the demand for online video services. Recent studies estimate that nowadays, more than 1% of the global greenhouse gas e…
Sweet Streams are Made of This: The System Engineer's View on Energy Efficiency in Video Communications
Christian Herglotz, Matthias Kränzler, Robert Schober +1
In recent years, the global use of online video services has increased rapidly. Today, a manifold of applications, such as video streaming, video conferencing, live broadcasting, a…
Decoding Energy Modeling For Versatile Video Coding
Matthias Kränzler, Christian Herglotz, André Kaup
In previous research, it was shown that the software decoding energy demand of High Efficiency Video Coding (HEVC) can be reduced by 15 by using a decoding-energy-rate-distorti…
Advanced Design Space Exploration for Joint Energy and Quality Optimization for VVC
Matthias Kränzler, Christian Herglotz, André Kaup
In recent studies, it could be shown that the energy demand of Versatile Video Coding (VVC) decoders can be twice as high as comparable High Efficiency Video Coding (HEVC) decoders…
Optimized Decoding-Energy-Aware Encoding in Practical VVC Implementations
Matthias Kränzler, Adam Wieckowski, Geetha Ramasubbu +4
The optimization of the energy demand is crucial for modern video codecs. Previous studies show that the energy demand of VVC decoders can be improved by more than 50% if specific…
A Bitstream Feature Based Model for Video Decoding Energy Estimation
Christian Herglotz, Yongjun Wen, Bowen Dai +2
In this paper we show that a small amount of bit stream features can be used to accurately estimate the energy consumption of state-of-the-art software and hardware accelerated dec…
Beyond Bjøntegaard: Limits of Video Compression Performance Comparisons
Christian Herglotz, Matthias Kränzler, Ruben Mons +1
For 20 years, the gold standard to evaluate the performance of video codecs is to calculate average differences between ratedistortion curves, also called the "Bjøntegaard Delta".…
Energy Efficient Video Decoding for VVC Using a Greedy Strategy Based Design Space Exploration
Matthias Kränzler, Christian Herglotz, André Kaup
IP traffic has increased significantly in recent years, and it is expected that this progress will continue. Recent studies report that the viewing of online video content accounts…