19 September 2017 Performance comparison of AV1, HEVC, and JVET video codecs on 360 (spherical) video
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Abstract
This paper compares the coding efficiency performance on 360 videos, of three software codecs: (a) AV1 video codec from the Alliance for Open Media (AOM); (b) the HEVC Reference Software HM; and (c) the JVET JEM Reference SW. Note that 360 video is especially challenging content, in that one codes full res globally, but typically looks locally (in a viewport), which magnifies errors. These are tested in two different projection formats ERP and RSP, to check consistency. Performance is tabulated for 1-pass encoding on two fronts: (1) objective performance based on end-to-end (E2E) metrics such as SPSNR-NN, and WS-PSNR, currently developed in the JVET committee; and (2) informal subjective assessment of static viewports. Constant quality encoding is performed with all the three codecs for an unbiased comparison of the core coding tools. Our general conclusion is that under constant quality coding, AV1 underperforms HEVC, which underperforms JVET. We also test with rate control, where AV1 currently underperforms the open source X265 HEVC codec. Objective and visual evidence is provided.
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Pankaj Topiwala, Pankaj Topiwala, Wei Dai, Wei Dai, Madhu Krishnan, Madhu Krishnan, Adeel Abbas, Adeel Abbas, Sandeep Doshi, Sandeep Doshi, David Newman, David Newman, } "Performance comparison of AV1, HEVC, and JVET video codecs on 360 (spherical) video", Proc. SPIE 10396, Applications of Digital Image Processing XL, 1039609 (19 September 2017); doi: 10.1117/12.2272119; https://doi.org/10.1117/12.2272119
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