Content for TR 26.918 Word version: 18.0.0
7 Video quality evaluation
7.1 Similarity ring metric
7.2 Subjective evaluation of Viewport-independent omnidirectional video streaming
7.3 Subjective evaluation of Viewport-dependent omnidirectional video streaming
7.4 QoE Assessment of Simulator Sickness in VR
7 Video quality evaluation p. 80
7.1 Similarity ring metric p. 80
7.1.1 Challenges for Subjective Assessment p. 80
7.1.2 Void
7.1.3 HMD Tracking p. 81
7.1.4 Similarity Ring Metric (SRM) p. 81
7.1.4.1 Introduction p. 81
7.1.4.2 Calculating the SRM p. 82
7.1.4.3 Rejection criteria p. 83
7.1.4.4 Other usages of the SRM p. 83
7.2 Subjective evaluation of Viewport-independent omnidirectional video streaming p. 83
7.2.1 Test description p. 83
7.2.1.1 Main objectives p. 83
7.2.1.2 Test material p. 84
7.2.1.3 Software implementation on content rendering p. 85
7.2.1.4 Content preparation p. 85
7.2.1.5 Test Sequences p. 86
7.2.1.6 Test methodology p. 87
7.2.1.6.1 Introduction p. 87
7.2.1.6.2 SAMVIQ based approach p. 87
7.2.1.6.3 Specific adaptations p. 88
7.2.1.7 Test organization p. 88
7.2.1.7.1 Introduction p. 88
7.2.1.7.2 Visual acuity check p. 88
7.2.1.7.3 Training p. 88
7.2.1.7.4 Main session p. 89
7.2.2 Test results p. 89
7.3 Subjective evaluation of Viewport-dependent omnidirectional video streaming p. 95
7.3.1 Introduction p. 95
7.3.2 Test Methodology p. 95
7.3.2.1 Introduction p. 95
7.3.2.2 Assessment Method p. 96
7.3.2.3 Instructions for the Assessment p. 96
7.3.2.4 Data Analysis p. 96
7.3.3 Subjective Test Experiments p. 96
7.3.4 Results p. 97
7.4 QoE Assessment of Simulator Sickness in VR p. 100
7.4.1 Introduction p. 100
7.4.2 Experimental Setup p. 101
7.4.3 Results p. 103
7.4.3.1 Comparisons of MOS between Test Methods p. 103
7.4.3.2 Assessment of simulator sickness in HMD p. 106
7.4.4 Summary p. 107
