| Dimension-based subjective quality evaluation for video content |
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Recommendation ITU-T P.918 presents guidelines for undertaking subjective experiments for the quality of experience (QoE) assessment of perceptual video quality dimensions. In addition to scores for the overall video quality, the methodology yields scores for five perceptual dimensions. Each perceptual dimension scores are based on the ratings of the amount of degradation present in one system/test condition. The method is designed to be used with naïve subjects. The dimension scores can be used to provide diagnostic information on what may cause the degradation.
The perceptual dimensions are described in this Recommendation as well as the method to conduct a subjective experiment. Furthermore, information is provided about possible test environment and setup, participant instructions, and test material.
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| Citation: |
https://handle.itu.int/11.1002/1000/14153 |
| Series title: |
P series: Telephone transmission quality, telephone installations, local line networks
P.900-P.999: Audiovisual quality in multimedia services |
| Approval date: |
2020-01-13 |
| Provisional name: | P.VQD |
| Approval process: | AAP |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 12 |
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Further details: |
Patent statement(s)
Development history
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| Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
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1
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P.918 (01/2020)
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In force
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here
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here
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here
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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P Suppl. 10 (11/1988)
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Considerations relating to transmission characteristics for analogue handset telephones
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In force
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-
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here
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here
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P Suppl. 16 (11/1988)
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Guidelines for placement of microphones and loudspeakers in telephone conference rooms and for group audio terminals (GATs)
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In force
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-
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here
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here
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P Suppl. 20 (03/1993)
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Examples of measurements of handset receive-frequency responses: dependence on earcap leakage losses
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In force
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-
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here
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here
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P Suppl. 23 (02/1998)
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ITU-T coded-speech database
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In force
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here
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here
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here
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P Suppl. 24 (10/2005)
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Parameters describing the interaction with spoken dialogue systems
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In force
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here
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here
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here
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P Suppl. 25 (01/2011)
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Parameters describing the interaction with multimodal dialogue systems
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In force
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here
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here
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here
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P Suppl. 26 (09/2017)
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Scenarios for the subjective evaluation of audio and audiovisual multiparty telemeeting quality
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In force
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here
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here
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here
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P Suppl. 28 (09/2020)
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Considerations for the development of new QoS and QoE related objective models to be embedded in Recommendations prepared by ITU-T Study Group 12
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In force
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here
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here
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here
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P Suppl. 31 (01/2025)
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Subjective quality evaluation of audiovisual communication in videotelephony services
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In force
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here
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here
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here
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