A Subjective Comparison of AV1 and HEVC for Adaptive Video Streaming

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

24 Citations (Scopus)
247 Downloads (Pure)


In this paper we compare the performance of two state-of-the-art competing codecs, AV1 and HEVC, in the context of adaptive streaming. We specifically consider a Dynamic Optimizer (DO) methodology that is content-aware and selects the resolution ofthe video sequence after constructing the convex hull of the Rate-Quality curves of all considered resolutions. We start with an objective evaluation of the Dynamic Optimizer, based on both PSNR and VMAF quality metrics. The Rate-VMAF curves show an average of 6.3% BD-Rate gain of AV1 over HEVC, while the Rate-PSNR curves an show an average BD-Rate loss of 1.8%. We then report subjective tests which evaluate the perceived quality of the selected bit streams generated by the two codecs. In this case it was found that, for most rate points, the difference in the perceived quality between HEVC and AV1 is not significant.
Original languageEnglish
Title of host publication2019 IEEE International Conference on Image Processing (ICIP 2019)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Print)9781538662502
Publication statusPublished - 26 Aug 2019
EventIEEE International Conference on Image Processing - Asia, Taipei, Taiwan
Duration: 22 Sept 201925 Sept 2019

Publication series

ISSN (Print)1522-4880


ConferenceIEEE International Conference on Image Processing
Abbreviated titleICIP
Internet address


  • Subjective Evaluation
  • Video Compression
  • AV1
  • HEVC
  • Adaptive Video Streaming


Dive into the research topics of 'A Subjective Comparison of AV1 and HEVC for Adaptive Video Streaming'. Together they form a unique fingerprint.

Cite this