Review Article
A Survey of Standardized Approaches towards the Quality of Experience Evaluation for Video Services: An ITU Perspective
Table 13
Model input across different variants.
| Model Type | Model Name | Required Inputs |
| Hybrid NR (encrypted) | RST-V model | Processed video sequence (PVS) and encrypted bitstream | YHyNRe model | PVS and encrypted bitstream |
| Hybrid NR | YHyNR model | PVS and non-encrypted bitstream |
| Hybrid RR (encrypted) | YHyRRe model | PVS, extracted features from source reference channel (SRC) and encrypted bitstream |
| Hybrid RR | YHyRR model | PVS, features extracted from SRC and non-encrypted bitstream |
| Hybrid FR (encrypted) | PEVQ-S (e) | PVS, SRC and encrypted bitstream | YHyFRe model | PVS, SRC and encrypted bitstream |
| Hybrid FR | PEVQ-S | PVS, SRC and non-encrypted bitstream | YHyFR model | PVS, SRC and non-encrypted bitstream |
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