VQiPS: GUC Aspects

Guide to Defining Video Quality Requirements

Select:
| Getting Started | Use Cases | Use Classes | GUC Aspects | Usage Timeframe | Discrimination Level | Target Size | Motion | Lighting Level | GUC Questionnaire |

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Generalized Use Class Aspects
A use class shares certain important aspects of specific use cases that are common to other use cases, allowing you to make generalizations between them. All use cases have an analyst and a scene under observation. For each of your use cases, apply the Generalized Use Class Questionnaire to derive generalized aspects from the analyst’s intended use of the video (Use Characteristics) and what is in the scene under observation (Scene Content).

Each of the following generalized use class aspects can impact the quality of the video content as seen and used by the analyst. Click any of the following generalized use class aspects or those in the figure for aspect information.

Use Characteristics

• Usage timeframe
• Discrimination level

Scene Content

• Target size
• Motion
• Lighting level

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