Energy Reduction Opportunities in HDR Video Encoding

Christian Herglotz, Steven Le Moan, Alexandre Mercat

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

This paper investigates the energy consumption of video encoding for high dynamic range videos. Specifically, we compare the energy consumption of the compression process using 10 -bit input sequences, a tone-mapped 8 -bit input sequence at 10 -bit internal bit depth, and encoding an 8 -bit input sequence using an encoder with an internal bit depth of 8 bit. We find that linear scaling of the luminance and chrominance values leads to degradations of the visual quality, but that significant encoding complexity and thus encoding energy can be saved. An important reason for this is the availability of vector instructions, which are not available for the 10-bit encoder. Furthermore, we find that at sufficiently low target bitrates, the compression efficiency at an internal bit depth of 8 bit exceeds the compression efficiency of regular 10-bit encoding.
Original languageEnglish
Title of host publication2024 IEEE International Conference on Image Processing (ICIP)
PublisherIEEE
Pages3654-3660
ISBN (Electronic)979-8-3503-4939-9
DOIs
Publication statusPublished - 2024
Publication typeA4 Article in conference proceedings
EventIEEE International Conference on Image Processing - Abu Dhabi, United Arab Emirates
Duration: 27 Oct 202430 Oct 2024

Publication series

Name Proceedings - IEEE International Conference on Image Processing
ISSN (Electronic)2381-8549

Conference

ConferenceIEEE International Conference on Image Processing
Country/TerritoryUnited Arab Emirates
City Abu Dhabi
Period27/10/2430/10/24

Publication forum classification

  • Publication forum level 1

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