Energy-aware images: Quality of Experience vs Energy Reduction
Olivier Le Meur, Claire-Hélène Demarty, Franck Aumont, Laurent Blondé, Erik Reinhard · 2023
The production, transmission and display of video content requires significant amounts of energy. Whether broadcasting or streaming a video, its display on modern televisions is responsible for a significant proportion of the energy consumption. This paper proposes a framework for analysing and processing video frames that allows a modern screen to use less energy when displaying these frames. The content is analyzed prior to encoding and transmission, generating metadata that is attached to the content. After reception by a display, the metadata is then used along with display parameters and user settings to adapt the content prior to display. Two use cases are discerned: one whereby the energy is reduced as much as possible under the constraint that visual quality is maintained, and another where the highest visual quality is sought under the constraint of a fixed reduction of energy use. These use cases would well serve broadcasting and streaming services, respectively.