Page 137 - ITU Journal, ICT Discoveries, Volume 3, No. 1, June 2020 Special issue: The future of video and immersive media
P. 137

ITU Journal: ICT Discoveries, Vol. 3(1), June 2020



                                                                                   Campfire
            100                                                    38
             90                                                    37
            VMAF  80                                             PSNR (dB)  36
             70
             60                                                    35
             50                                                    34
                0          5,000       10,000      15,000             0         10,000       20,000      30,000
                              Bit rate (kbps)                                       Bit rate (kbps)

                                                                  100
              8
                                                                   95
              6                                                    90
            MOS  4                                               VMAF  85
              2
                                                                   80
              0                                                       0         10,000       20,000      30,000
                0          5,000       10,000      15,000                           Bit rate (kbps)
                              Bit rate (kbps)
                                                                    8
                  Fig. 6 – RD-curves for sequence A3 using
                   H.264/AVC as base and anchor codec               6

                                                                  MOS  4

                          Fortnite (Part 1)                         2
             38
                                                                    0  0        10,000       20,000      30,000
             36
            PSNR (dB)  34                                               Fig. 8 – RD-curves for sequence A1 using
                                                                                    Bit rate (kbps)
             32
             30                                                          H.265/HEVC as base and anchor codec
                0       5,000    10,000   15,000   20,000
                              Bit rate (kbps)

                                                                   36            ParkRunning3
             95                                                    34
             85                                                  PSNR (dB)
            VMAF  75                                               32

                                                                   30
             65                                                       0         10,000       20,000      30,000
                0       5,000    10,000   15,000   20,000                           Bit rate (kbps)
                              Bit rate (kbps)

                                                                   90
              8                                                    85
              6                                                  VMAF  80
            MOS  4                                                 75

              2                                                    70  0        10,000       20,000      30,000
                                                                                    Bit rate (kbps)
              0
                0       5,000    10,000   15,000   20,000
                              Bit rate (kbps)

                  Fig. 7 – RD-curves for sequence A4 using
                   H.264/AVC as base and anchor codec





                                                © International Telecommunication Union, 2020                115
   132   133   134   135   136   137   138   139   140   141   142