Christian Timmerer
YOU?
Author Swipe
View article: Predicting Encoding Energy from Low-Pass Anchors for Green Video Streaming
Predicting Encoding Energy from Low-Pass Anchors for Green Video Streaming Open
Video streaming now represents the dominant share of Internet traffic, as ever-higher-resolution content is distributed across a growing range of heterogeneous devices to sustain user Quality of Experience (QoE). However, this trend raises…
View article: GenStream: Semantic Streaming Framework for Generative Reconstruction of Human-centric Media
GenStream: Semantic Streaming Framework for Generative Reconstruction of Human-centric Media Open
View article: Nature-1k: The Raw Beauty of Nature in 4K at 60FPS
Nature-1k: The Raw Beauty of Nature in 4K at 60FPS Open
View article: Perceptual Quality Assessment of Spatial Videos on Apple Vision Pro
Perceptual Quality Assessment of Spatial Videos on Apple Vision Pro Open
View article: SVD: Spatial Video Dataset
SVD: Spatial Video Dataset Open
View article: A Lightweight Ensemble-Based Face Image Quality Assessment Method with Correlation-Aware Loss
A Lightweight Ensemble-Based Face Image Quality Assessment Method with Correlation-Aware Loss Open
Face image quality assessment (FIQA) plays a critical role in face recognition and verification systems, especially in uncontrolled, real-world environments. Although several methods have been proposed, general-purpose no-reference image q…
View article: Real-Time AI-Driven Avatar Generation for Sign Language in HTTP Adaptive Streaming
Real-Time AI-Driven Avatar Generation for Sign Language in HTTP Adaptive Streaming Open
View article: SVD: Spatial Video Dataset
SVD: Spatial Video Dataset Open
Stereoscopic video has long been the subject of research due to its capacity to deliver immersive three-dimensional content across a wide range of applications, from virtual and augmented reality to advanced human-computer interaction. The…
View article: End-to-End Learning-based Video Streaming Enhancement Pipeline: A Generative AI Approach
End-to-End Learning-based Video Streaming Enhancement Pipeline: A Generative AI Approach Open
View article: Improving the Efficiency of VVC using Partitioning of Reference Frames
Improving the Efficiency of VVC using Partitioning of Reference Frames Open
In response to the growing demand for high-quality videos, Versatile Video Coding (VVC) was released in 2020, building on the hybrid coding architecture of its predecessor, HEVC, achieving about 50% bitrate reduction for the same visual qu…
View article: Multi-resolution Encoding for HTTP Adaptive Streaming using VVenC
Multi-resolution Encoding for HTTP Adaptive Streaming using VVenC Open
HTTP Adaptive Streaming (HAS) is a widely adopted method for delivering video content over the Internet, requiring each video to be encoded at multiple bitrates and resolution pairs, known as representations, to adapt to various network co…
View article: Perceptual Visual Quality Assessment: Principles, Methods, and Future Directions
Perceptual Visual Quality Assessment: Principles, Methods, and Future Directions Open
As multimedia services such as video streaming, video conferencing, virtual reality (VR), and online gaming continue to expand, ensuring high perceptual visual quality becomes a priority to maintain user satisfaction and competitiveness. H…
View article: Counterfeiting Attacks on an RDH-EI Scheme Based on Block-Permutation and Co-XOR
Counterfeiting Attacks on an RDH-EI Scheme Based on Block-Permutation and Co-XOR Open
Reversible data hiding in encrypted images (RDH-EI) has gained widespread attention due to its potential applications in secure cloud storage. However, the security challenges of RDH-EI in cloud storage scenarios remain largely unexplored.…
View article: Towards an Energy-Efficient Video Processing Tool with LLMs
Towards an Energy-Efficient Video Processing Tool with LLMs Open
View article: Adaptive Quality and Energy Enhancement in Video Streaming with RecABR
Adaptive Quality and Energy Enhancement in Video Streaming with RecABR Open
View article: Generative AI for Realistic Voice Dubbing Across Languages
Generative AI for Realistic Voice Dubbing Across Languages Open
View article: Real-Time Quality- and Energy-Aware Bitrate Ladder Construction for Live Video Streaming
Real-Time Quality- and Energy-Aware Bitrate Ladder Construction for Live Video Streaming Open
View article: Eye-Tracking, Quality Assessment, and QoE Prediction Models for Point Cloud Videos: Extended Analysis of the ComPEQ-MR Dataset
Eye-Tracking, Quality Assessment, and QoE Prediction Models for Point Cloud Videos: Extended Analysis of the ComPEQ-MR Dataset Open
View article: VQM4HAS: A Real-time Quality Metric for HEVC Videos in HTTP Adaptive Streaming
VQM4HAS: A Real-time Quality Metric for HEVC Videos in HTTP Adaptive Streaming Open
View article: EPS: Efficient Patch Sampling for Video Overfitting in Deep Super-Resolution Model Training
EPS: Efficient Patch Sampling for Video Overfitting in Deep Super-Resolution Model Training Open
Leveraging the overfitting property of deep neural networks (DNNs) is trending in video delivery systems to enhance quality within bandwidth limits. Existing approaches transmit overfitted super-resolution (SR) model streams for low-resolu…
View article: 360-Degree Video Super Resolution and Quality Enhancement Challenge: Methods and Results
360-Degree Video Super Resolution and Quality Enhancement Challenge: Methods and Results Open
Omnidirectional (360-degree) video is rapidly gaining popularity due to advancements in immersive technologies like virtual reality (VR) and extended reality (XR). However, real-time streaming of such videos, especially in live mobile scen…
View article: Energy-Quality-aware Variable Framerate Pareto-Front for Adaptive Video Streaming
Energy-Quality-aware Variable Framerate Pareto-Front for Adaptive Video Streaming Open
Optimizing framerate for a given bitrate-spatial resolution pair in adaptive video streaming is essential to maintain perceptual quality while considering decoding complexity. Low framerates at low bitrates reduce compression artifacts and…
View article: REVISION: A Roadmap on Adaptive Video Streaming Optimization
REVISION: A Roadmap on Adaptive Video Streaming Optimization Open
Due to the soaring popularity of video applications and the consequent rise in video traffic on the Internet, technologies like HTTP Adaptive Streaming (HAS) are crucial for delivering high Quality of Experience (QoE) to consumers. HAS tec…
View article: COBIRAS: Offering a Continuous Bit Rate Slide to Maximize DASH Streaming Bandwidth Utilization
COBIRAS: Offering a Continuous Bit Rate Slide to Maximize DASH Streaming Bandwidth Utilization Open
Reaching close-to-optimal bandwidth utilization in dynamic adaptive streaming over HTTP (DASH) systems can, in theory, be achieved with a small discrete set of bit rate representations. This includes typical bit rate ladders used in state-…
View article: On the Security of Selectively Encrypted HEVC Video Bitstreams
On the Security of Selectively Encrypted HEVC Video Bitstreams Open
With the growing applications of video, ensuring its security has become of utmost importance. Selective encryption (SE) has gained significant attention in the field of video content protection due to its compatibility with video codecs, …
View article: Beyond Curves and Thresholds - Introducing Uncertainty Estimation to Satisfied User Ratios for Compressed Video
Beyond Curves and Thresholds - Introducing Uncertainty Estimation to Satisfied User Ratios for Compressed Video Open
International audience
View article: Towards AI-Assisted Sustainable Adaptive Video Streaming Systems: Tutorial and Survey
Towards AI-Assisted Sustainable Adaptive Video Streaming Systems: Tutorial and Survey Open
Improvements in networking technologies and the steadily increasing numbers of users, as well as the shift from traditional broadcasting to streaming content over the Internet, have made video applications (e.g., live and Video-on-Demand (…
View article: EVCA
EVCA Open
The optimization of video compression and streaming workflows critically relies on understanding the video complexity, including both spatial and temporal features. These features play a vital role in guiding rate control, predicting video…
View article: VEED
VEED Open
Video streaming constitutes 65 % of global internet traffic, prompting an investigation into its energy consumption and CO2 emissions. Video encoding, a computationally intensive part of streaming, has moved to cloud computing for its scal…
View article: GREEM
GREEM Open
Addressing climate change requires a global decrease in greenhouse gas (GHG) emissions. In today's digital landscape, video streaming significantly influences internet traffic, driven by the widespread use of mobile devices and the rising …